This document discusses the high-rise development of the coastline in Fortaleza, Brazil. It began with the urban development of the coast in the early 19th century. Development accelerated in the 1980s due to tourism, leading to the expansion of high-rise construction along the beachfront. This replaced extensive with intensive occupation. The document explores Fortaleza's urban development historically and analyzes the current urban fabric, distribution of high-rises, land prices, and human pressure on the coastal zone. Extensive artificial modification of the coast has enabled Fortaleza to become a major tourist destination, and increased economic activity has allowed for increasingly extensive coastal engineering.
Overall, shoreline erosion along Black River Bay, Jamaica averaged -0.31 m/yr from 2003-2012. Erosion rates were highest from 2003-2007 (-0.90 m/yr) due to Hurricane Ivan in 2004, followed by some recovery from 2007-2012 (0.21 m/yr). The sandy beaches lacking reef protection experienced the most erosion. An estimated 9 km of mangroves and over 100 buildings are at risk of being lost in the next 10-30 years due to continued sea level rise and erosion.
The document provides an overview of geology and its importance in civil engineering projects. It begins with definitions of geology and its main branches like physical geology, geomorphology, mineralogy, petrology, economic geology, and historical geology. It then discusses the importance of engineering geology in construction projects, specifically in planning, designing, and executing projects. Key considerations include understanding rock properties, depth and structure, and identifying weak zones or groundwater levels. The document also summarizes different rock types - igneous, sedimentary and metamorphic - and describes their formation processes. Volcanic eruption types like Hawaiian, Strombolian and Vulcanian are also defined based on the viscosity of the erupted lava and explosivity
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
- Coastal erosion has been an issue at Quinns Beach, Western Australia since 1973. An artificial headland and groynes were previously constructed but erosion continued.
- In 2012 a review was conducted to evaluate mitigation options. Option 1 proposed relocating the headland and adding/relocating groynes along with renourishment. Option 2 proposed managed retreat. Option 3 proposed adding an offshore headland and repairing existing groynes.
- Cost estimates were conducted for the options. Option 1 had the highest initial cost but similar long-term maintenance costs to Option 3. Option 2 had the lowest initial cost but potential high costs if severe erosion continued. The recommended solution aimed to mimic natural processes to minimize
The document summarizes a study on variations in groundwater flow potential in parts of Imo State, Nigeria. Ten boreholes across the study area underlain by the Benin Formation were investigated. Transmissivity values, which indicate groundwater flow potential, ranged from 311.04 to 388,800 m2/day. The highest potential was at Futo borehole, while the lowest was at Uratta. The study area was segmented into areas of moderate and high potential. Areas with lower hydraulic conductivity and transmissivity values generally had moderate potential, while others with higher values had high potential. The groundwater flow potential model shows potential increases from north to south. The transmissivity values obtained can support sustainable groundwater
This document summarizes a study on the impact of climate variability on groundwater resources in the Kolondieba catchment basin in Mali. The researchers used historical climate and groundwater data along with downscaled global climate model data to build a groundwater flow model. The model was used to simulate past groundwater levels and predict future impacts of climate variability. The study found that groundwater levels have declined on average 2-15 cm per year from 1940-2008 due to decreasing rainfall. The model can help predict future groundwater levels using climate projections.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
Overall, shoreline erosion along Black River Bay, Jamaica averaged -0.31 m/yr from 2003-2012. Erosion rates were highest from 2003-2007 (-0.90 m/yr) due to Hurricane Ivan in 2004, followed by some recovery from 2007-2012 (0.21 m/yr). The sandy beaches lacking reef protection experienced the most erosion. An estimated 9 km of mangroves and over 100 buildings are at risk of being lost in the next 10-30 years due to continued sea level rise and erosion.
The document provides an overview of geology and its importance in civil engineering projects. It begins with definitions of geology and its main branches like physical geology, geomorphology, mineralogy, petrology, economic geology, and historical geology. It then discusses the importance of engineering geology in construction projects, specifically in planning, designing, and executing projects. Key considerations include understanding rock properties, depth and structure, and identifying weak zones or groundwater levels. The document also summarizes different rock types - igneous, sedimentary and metamorphic - and describes their formation processes. Volcanic eruption types like Hawaiian, Strombolian and Vulcanian are also defined based on the viscosity of the erupted lava and explosivity
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
- Coastal erosion has been an issue at Quinns Beach, Western Australia since 1973. An artificial headland and groynes were previously constructed but erosion continued.
- In 2012 a review was conducted to evaluate mitigation options. Option 1 proposed relocating the headland and adding/relocating groynes along with renourishment. Option 2 proposed managed retreat. Option 3 proposed adding an offshore headland and repairing existing groynes.
- Cost estimates were conducted for the options. Option 1 had the highest initial cost but similar long-term maintenance costs to Option 3. Option 2 had the lowest initial cost but potential high costs if severe erosion continued. The recommended solution aimed to mimic natural processes to minimize
The document summarizes a study on variations in groundwater flow potential in parts of Imo State, Nigeria. Ten boreholes across the study area underlain by the Benin Formation were investigated. Transmissivity values, which indicate groundwater flow potential, ranged from 311.04 to 388,800 m2/day. The highest potential was at Futo borehole, while the lowest was at Uratta. The study area was segmented into areas of moderate and high potential. Areas with lower hydraulic conductivity and transmissivity values generally had moderate potential, while others with higher values had high potential. The groundwater flow potential model shows potential increases from north to south. The transmissivity values obtained can support sustainable groundwater
This document summarizes a study on the impact of climate variability on groundwater resources in the Kolondieba catchment basin in Mali. The researchers used historical climate and groundwater data along with downscaled global climate model data to build a groundwater flow model. The model was used to simulate past groundwater levels and predict future impacts of climate variability. The study found that groundwater levels have declined on average 2-15 cm per year from 1940-2008 due to decreasing rainfall. The model can help predict future groundwater levels using climate projections.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
IRJET- Temporal Changes of Coastal Cliffs : A Case Study from VarkalaIRJET Journal
This document discusses temporal changes to coastal cliffs in Varkala, India through a case study. It analyzes satellite imagery from 2003 and 2019 and compares it to a 1966 topographical map to estimate changes to the Varkala Beach shoreline over decades. Coastal erosion may impact landscape quality. The study area contains unique red laterite cliffs that are an important tourist feature but also geologically significant. Factors like unauthorized construction, vehicle traffic, and rainfall are cited as causing landslides. QGIS is used to delineate cliff erosion hazards to inform coastal management and development planning.
The document summarizes coastal morphology and the classification of coasts according to plate tectonics. It describes the three primary types of coasts - collision coasts, trailing edge coasts, and marginal sea coasts. Within these types are subclasses like continental collision coasts, island arc collision coasts, neo-trailing edge coasts, amero-trailing edge coasts and more. Each subclass is defined with examples. The document also discusses shore zones, beach features like berms and bars, and coastal landforms like dunes, troughs and ridges. Figures and diagrams provide visual examples.
This document summarizes environmental changes in the Boiano intramontane basin in Italy since ancient times of Bovianum (4th century BC). It discusses how the urban settlement of Bovianum shifted locations over time between the Matese slope, piedmont area, and plain, in response to climatic and human-induced environmental changes as well as seismic activity. Sediment cores and archaeological data indicate periods of debris deposition and waterlogging affected the areas during climatic deteriorations like the Iron Age, Dark Ages, and Little Ice Age. While climate changes were likely the primary driver, human activities like deforestation also potentially contributed to environmental changes in the basin.
The document discusses assessing seismic risk and geohazard vulnerability at cultural heritage sites in Albania. It presents contributions on historical/archaeological assessment, regional seismic hazard assessment, and local seismic hazard assessment. It describes creating seismic microzonation maps to classify areas by expected seismic effects such as amplification or permanent deformation. The project involves geological surveys, geophysical tests of soil properties, and defining unstable zones to identify areas susceptible to different seismic hazards for cultural heritage site management.
Investors have been avoiding the Okurike Barite due to paucity of
information on its economic worth in spite of the high demand for barites by the
local industries. This study was embarked upon to determine the spread and
industrial quality of the barite deposit in order to bridge the information gap. The
Okurike Barite mineralised site was investigated using geophysical Vertical
Electrical Sounding (VES) and Electrical Resistivity Tomography (ERT) and
geological techniques. The geophysical data were acquired along three profiles
while the barite samples were analysed using the laboratory techniques in order to
determine their elemental compositions and physical characteristics. Results show
that the barites occur with gravels, breccias and weathered basement materials
within a very limited region. The resistivity values of the barite mineralised region
were observed to vary between 731 and ~1500 Ωm. The barites are characterised by
specific gravity of 4.4, density of 3.64 g/cm3, porosity of 28%, uniaxial compressive
strength of 29.4 kN/mm2 and water absorption capacity of 1.5%. The elements Ba
and Fe dominate the elemental composition with 77.28 and 19.98% respectively.
BaO, Fe2O3 and MnO are preferentially enriched with abundance of 71.28, 21.40
and 6.10% respectively. These results show that the industrial quality of the
Okurike Barite is high although its spread is limited.
Evidence of Clay Mineralization on Tropical Sediments from Afikpo Graben, SE ...Premier Publishers
Sedimentation in the Afikpo graben (SE Nigeria) thus commenced with the Campano-Maastrichtian marine and paralic shales of the Enugu and Nkporo Formations, overlain by the Mamu Formation. The fluviodeltaic and subtidal sandstones of the Ajali Formation lie on the Mamu Formation. The overlying deltaic Nsukka and marine shales of the Imo and Ameke Formations were deposited during the Paleocene. These two formations (Mamu and Nsukka) consist of a cyclic succession of coals, carbonaceous shales, silty shales and siltstones interpreted as deltaic deposits. The primary minerals are Feldspar, Quartz, Pyroxenes, Haematite. The secondary minerals are further classified into two major groups of 1:1 clay minerals and 2:1 clay minerals. The 1:1 clay minerals are kaolinite and halloysite, while the examples of 2:1 mineral are montmorillonite, vermiculite and illite. Clay fractions of shale samples obtained from the Cretaceous Mamu and Nsukka Formations in the Afikpo graben, South eastern Nigeria through the process of sedimentation technique were air – dried and analyzed using the empyrean diffractometer manufactured by Panalytical to determine the presence of clay mineralization in the area. The result shows that the bulk mineral composition of the shales comprises of quartz, clay minerals, carbonates and iron rich minerals, while the dominant clay mineral is kaolinite (70 – 80%) with minor amounts of illite (4 – 7 %) and smectite (10 – 20) as typical composition of tropical sediment.
Stratigraphic influence on geotechnical properties of subgrade soils along th...Alexander Decker
This document summarizes a study of the stratigraphic influence on geotechnical properties of subgrade soils along the Irrua-Auchi road in Nigeria. Laboratory and field tests were conducted to analyze the engineering properties of soils derived from different geologic formations underlying the road: the Ameki Formation, Imo Shale, and Ajali Sandstone. Results showed the soils had similar geotechnical properties but pavement deflections, indicating stability, varied with geology, with the most stable segment underlain by Ajali soils and the least stable by Imo shale soils. Stratification of underlying geologic units thus influenced the pavement performance.
Integrated Geophysical Studies Over Parts of Central Cross River State for th...iosrjce
A total of 71 Vertical Electrical Soundings were carried out using Schlumberger electrode
configuration for the evaluation of groundwater potential in parts of central Cross River State, Nigeria.
Interpretation of data showed three to six geoelectric layers. Productive shallow and deep aquifer zones were
identified at depths of 60 m and 150 m respectively, corresponding to a resistivity range of 100-500 Ωm for
shallow aquifers and 1000-2500 Ωm for deep aquifers respectively. The lithologic data of the aquifers revealed
sand/sandstone and very coarsed grained sand/fractured basement, respectively. Seismic refraction survey was
also carried out within the same study area for the foundation study of rocks. The studies revealed an average
thickness of 4.5 m (probably sand/clay) and 10.0 m (probably gravelly sand/shale) for the first and second
layers respectively. The range of velocities for the first three layers are 602 m/s to 960 m/s, 378 m/s to 2,424 m/s
and 1,587 m/s to 5,368 m/s, respectively, indicating that the soils in the area are not homogeneous. It is inferred
from the relative high values of calculated elastic constants in most of the locations, that the soils are well
consolidated and as such suitable for large engineering construction in such locations, while in the rest of the
locations the soils are considered unconsolidated and unsuitable for large construction work due to the relative
low values of the elastic constants.
Recuperação de Praias com o uso do Dissipador de Energia Bagwall no Litoral d...Marco Lyra
1) O documento descreve resultados positivos de quatro dissipadores de energia Bagwall construídos em praias nos estados de Alagoas e Ceará no Brasil.
2) Esses dissipadores controlaram a erosão costeira e permitiram a recuperação das praias locais.
3) Monitoramento da praia do Icaraí no Ceará mostrou rápida recuperação da duna frontal com acúmulo de mais de 120 mil metros cúbicos de areia.
1. O relatório analisa um edital de licitação para obras de contenção de erosão marinha em João Pessoa e aponta indícios de irregularidades no edital.
2. Entre as irregularidades apontadas estão: vedação à participação de consórcios sem motivação; índice de endividamento exigido; e realização de licitação para todos os lotes ao mesmo tempo, ao invés de separar o estudo de impacto ambiental.
3. O relatório recomenda suspender o processo licitatório e notificar o Secretário de Planejamento para se manifest
Selection of Species in the Reservoir Ecosystem for Area of the Boca Do Rio N...inventionjournals
Considering the importance of the dune ecosystems for the protection of areas and aquifers, this study was carried out presenting the selection of some plant species of the restinga ecosystem that could compose a coastal stretch of the neighborhood of Boca do Rio in the city of Salvador, Bahia, Brazil. The area to be recovered is changed. The decharacterization of the environment is due to the intense depletion of its natural resources caused by the disordered occupation. In this sense, it becomes a challenge to the selection of plant species that associate or that adapt to the existing conditions in this environment. In this way nineteen plant species of arboreal extract were selected (19), seven (07) seven shrubs and (06) six shrubs. However, in view of this scenario, it is pertinent to caution, recommend planting plant species that adapt to the adverse conditions of coastal zones and accompany them for assessments and possible corrections. Thus, we will have a greater control of the anatomical and physiological conditions of the vegetal species planted in this place.
Cultural Landscapes Preservation at the Interface Of Urban Planning and SprawlIEREK Press
From ancient times, the sea has played a key role in shaping and generating settlements and cities. Thehistoryof civilizations has been marked by the cultural development of human societiesalong coastlines.Accordingly,these territories are harbor of animportantcoastal heritage;that plays a pivotal rolein maintaining the link between the past and the future. In fact, while cities grow and their populations increase, their planning becomes a challenge for sustainable development.Through different forms and mechanisms, coastal sprawlis materialized, by the massive occupation of populations and industrial activities along coastlines. In this vein, coastlines endure many conflicts, which lead to the degradation of cultural and natural resources and may result in loss of cultural identity associated with the presence of cultural landscapes. The paper aims, to discuss planning approaches and challenges related to managing cultural and coastal landscapes, facing the impact of coastal sprawl. The paper is based on a landscape analysis; it interviews the urban, social, juridical and morphological frame.An understanding of urban sprawl throughthe lens of Annaba’s coastline is required for its implicationas a social support of the identity and the history of the city.The paper also examines how the coastalization affects the cultural heritage based on the monograph of one of the valuable French colonial constructions in Algeria. Lastly, the study demonstrates, some keyopportunities for advancing future adjustments, and coastal management approaches.For instance, new tools and more appropriate methodologies that combinethe preservation ofthe coastline and the preservationof the cultural heritage.
Global climate change will likely lead to sea level rise and more frequent severe coastal storms in the Northeast US. Coastal areas like Connecticut have experienced significant flooding and storm damage in recent years. One approach to address these impacts is developing "living shorelines" which use natural features like salt marshes, eelgrass beds, and mangroves to buffer storm surges and waves. These natural features can mitigate flooding but as sea levels rise, marshes must be able to migrate inland. Protecting coastal open spaces and allowing marsh migration will be important to maintain these ecosystems under climate change.
IRJET- Temporal Changes of Coastal Cliffs : A Case Study from VarkalaIRJET Journal
This document discusses temporal changes to coastal cliffs in Varkala, India through a case study. It analyzes satellite imagery from 2003 and 2019 and compares it to a 1966 topographical map to estimate changes to the Varkala Beach shoreline over decades. Coastal erosion may impact landscape quality. The study area contains unique red laterite cliffs that are an important tourist feature but also geologically significant. Factors like unauthorized construction, vehicle traffic, and rainfall are cited as causing landslides. QGIS is used to delineate cliff erosion hazards to inform coastal management and development planning.
The document summarizes coastal morphology and the classification of coasts according to plate tectonics. It describes the three primary types of coasts - collision coasts, trailing edge coasts, and marginal sea coasts. Within these types are subclasses like continental collision coasts, island arc collision coasts, neo-trailing edge coasts, amero-trailing edge coasts and more. Each subclass is defined with examples. The document also discusses shore zones, beach features like berms and bars, and coastal landforms like dunes, troughs and ridges. Figures and diagrams provide visual examples.
This document summarizes environmental changes in the Boiano intramontane basin in Italy since ancient times of Bovianum (4th century BC). It discusses how the urban settlement of Bovianum shifted locations over time between the Matese slope, piedmont area, and plain, in response to climatic and human-induced environmental changes as well as seismic activity. Sediment cores and archaeological data indicate periods of debris deposition and waterlogging affected the areas during climatic deteriorations like the Iron Age, Dark Ages, and Little Ice Age. While climate changes were likely the primary driver, human activities like deforestation also potentially contributed to environmental changes in the basin.
The document discusses assessing seismic risk and geohazard vulnerability at cultural heritage sites in Albania. It presents contributions on historical/archaeological assessment, regional seismic hazard assessment, and local seismic hazard assessment. It describes creating seismic microzonation maps to classify areas by expected seismic effects such as amplification or permanent deformation. The project involves geological surveys, geophysical tests of soil properties, and defining unstable zones to identify areas susceptible to different seismic hazards for cultural heritage site management.
Investors have been avoiding the Okurike Barite due to paucity of
information on its economic worth in spite of the high demand for barites by the
local industries. This study was embarked upon to determine the spread and
industrial quality of the barite deposit in order to bridge the information gap. The
Okurike Barite mineralised site was investigated using geophysical Vertical
Electrical Sounding (VES) and Electrical Resistivity Tomography (ERT) and
geological techniques. The geophysical data were acquired along three profiles
while the barite samples were analysed using the laboratory techniques in order to
determine their elemental compositions and physical characteristics. Results show
that the barites occur with gravels, breccias and weathered basement materials
within a very limited region. The resistivity values of the barite mineralised region
were observed to vary between 731 and ~1500 Ωm. The barites are characterised by
specific gravity of 4.4, density of 3.64 g/cm3, porosity of 28%, uniaxial compressive
strength of 29.4 kN/mm2 and water absorption capacity of 1.5%. The elements Ba
and Fe dominate the elemental composition with 77.28 and 19.98% respectively.
BaO, Fe2O3 and MnO are preferentially enriched with abundance of 71.28, 21.40
and 6.10% respectively. These results show that the industrial quality of the
Okurike Barite is high although its spread is limited.
Evidence of Clay Mineralization on Tropical Sediments from Afikpo Graben, SE ...Premier Publishers
Sedimentation in the Afikpo graben (SE Nigeria) thus commenced with the Campano-Maastrichtian marine and paralic shales of the Enugu and Nkporo Formations, overlain by the Mamu Formation. The fluviodeltaic and subtidal sandstones of the Ajali Formation lie on the Mamu Formation. The overlying deltaic Nsukka and marine shales of the Imo and Ameke Formations were deposited during the Paleocene. These two formations (Mamu and Nsukka) consist of a cyclic succession of coals, carbonaceous shales, silty shales and siltstones interpreted as deltaic deposits. The primary minerals are Feldspar, Quartz, Pyroxenes, Haematite. The secondary minerals are further classified into two major groups of 1:1 clay minerals and 2:1 clay minerals. The 1:1 clay minerals are kaolinite and halloysite, while the examples of 2:1 mineral are montmorillonite, vermiculite and illite. Clay fractions of shale samples obtained from the Cretaceous Mamu and Nsukka Formations in the Afikpo graben, South eastern Nigeria through the process of sedimentation technique were air – dried and analyzed using the empyrean diffractometer manufactured by Panalytical to determine the presence of clay mineralization in the area. The result shows that the bulk mineral composition of the shales comprises of quartz, clay minerals, carbonates and iron rich minerals, while the dominant clay mineral is kaolinite (70 – 80%) with minor amounts of illite (4 – 7 %) and smectite (10 – 20) as typical composition of tropical sediment.
Stratigraphic influence on geotechnical properties of subgrade soils along th...Alexander Decker
This document summarizes a study of the stratigraphic influence on geotechnical properties of subgrade soils along the Irrua-Auchi road in Nigeria. Laboratory and field tests were conducted to analyze the engineering properties of soils derived from different geologic formations underlying the road: the Ameki Formation, Imo Shale, and Ajali Sandstone. Results showed the soils had similar geotechnical properties but pavement deflections, indicating stability, varied with geology, with the most stable segment underlain by Ajali soils and the least stable by Imo shale soils. Stratification of underlying geologic units thus influenced the pavement performance.
Integrated Geophysical Studies Over Parts of Central Cross River State for th...iosrjce
A total of 71 Vertical Electrical Soundings were carried out using Schlumberger electrode
configuration for the evaluation of groundwater potential in parts of central Cross River State, Nigeria.
Interpretation of data showed three to six geoelectric layers. Productive shallow and deep aquifer zones were
identified at depths of 60 m and 150 m respectively, corresponding to a resistivity range of 100-500 Ωm for
shallow aquifers and 1000-2500 Ωm for deep aquifers respectively. The lithologic data of the aquifers revealed
sand/sandstone and very coarsed grained sand/fractured basement, respectively. Seismic refraction survey was
also carried out within the same study area for the foundation study of rocks. The studies revealed an average
thickness of 4.5 m (probably sand/clay) and 10.0 m (probably gravelly sand/shale) for the first and second
layers respectively. The range of velocities for the first three layers are 602 m/s to 960 m/s, 378 m/s to 2,424 m/s
and 1,587 m/s to 5,368 m/s, respectively, indicating that the soils in the area are not homogeneous. It is inferred
from the relative high values of calculated elastic constants in most of the locations, that the soils are well
consolidated and as such suitable for large engineering construction in such locations, while in the rest of the
locations the soils are considered unconsolidated and unsuitable for large construction work due to the relative
low values of the elastic constants.
Recuperação de Praias com o uso do Dissipador de Energia Bagwall no Litoral d...Marco Lyra
1) O documento descreve resultados positivos de quatro dissipadores de energia Bagwall construídos em praias nos estados de Alagoas e Ceará no Brasil.
2) Esses dissipadores controlaram a erosão costeira e permitiram a recuperação das praias locais.
3) Monitoramento da praia do Icaraí no Ceará mostrou rápida recuperação da duna frontal com acúmulo de mais de 120 mil metros cúbicos de areia.
1. O relatório analisa um edital de licitação para obras de contenção de erosão marinha em João Pessoa e aponta indícios de irregularidades no edital.
2. Entre as irregularidades apontadas estão: vedação à participação de consórcios sem motivação; índice de endividamento exigido; e realização de licitação para todos os lotes ao mesmo tempo, ao invés de separar o estudo de impacto ambiental.
3. O relatório recomenda suspender o processo licitatório e notificar o Secretário de Planejamento para se manifest
Selection of Species in the Reservoir Ecosystem for Area of the Boca Do Rio N...inventionjournals
Considering the importance of the dune ecosystems for the protection of areas and aquifers, this study was carried out presenting the selection of some plant species of the restinga ecosystem that could compose a coastal stretch of the neighborhood of Boca do Rio in the city of Salvador, Bahia, Brazil. The area to be recovered is changed. The decharacterization of the environment is due to the intense depletion of its natural resources caused by the disordered occupation. In this sense, it becomes a challenge to the selection of plant species that associate or that adapt to the existing conditions in this environment. In this way nineteen plant species of arboreal extract were selected (19), seven (07) seven shrubs and (06) six shrubs. However, in view of this scenario, it is pertinent to caution, recommend planting plant species that adapt to the adverse conditions of coastal zones and accompany them for assessments and possible corrections. Thus, we will have a greater control of the anatomical and physiological conditions of the vegetal species planted in this place.
Cultural Landscapes Preservation at the Interface Of Urban Planning and SprawlIEREK Press
From ancient times, the sea has played a key role in shaping and generating settlements and cities. Thehistoryof civilizations has been marked by the cultural development of human societiesalong coastlines.Accordingly,these territories are harbor of animportantcoastal heritage;that plays a pivotal rolein maintaining the link between the past and the future. In fact, while cities grow and their populations increase, their planning becomes a challenge for sustainable development.Through different forms and mechanisms, coastal sprawlis materialized, by the massive occupation of populations and industrial activities along coastlines. In this vein, coastlines endure many conflicts, which lead to the degradation of cultural and natural resources and may result in loss of cultural identity associated with the presence of cultural landscapes. The paper aims, to discuss planning approaches and challenges related to managing cultural and coastal landscapes, facing the impact of coastal sprawl. The paper is based on a landscape analysis; it interviews the urban, social, juridical and morphological frame.An understanding of urban sprawl throughthe lens of Annaba’s coastline is required for its implicationas a social support of the identity and the history of the city.The paper also examines how the coastalization affects the cultural heritage based on the monograph of one of the valuable French colonial constructions in Algeria. Lastly, the study demonstrates, some keyopportunities for advancing future adjustments, and coastal management approaches.For instance, new tools and more appropriate methodologies that combinethe preservation ofthe coastline and the preservationof the cultural heritage.
Global climate change will likely lead to sea level rise and more frequent severe coastal storms in the Northeast US. Coastal areas like Connecticut have experienced significant flooding and storm damage in recent years. One approach to address these impacts is developing "living shorelines" which use natural features like salt marshes, eelgrass beds, and mangroves to buffer storm surges and waves. These natural features can mitigate flooding but as sea levels rise, marshes must be able to migrate inland. Protecting coastal open spaces and allowing marsh migration will be important to maintain these ecosystems under climate change.
Sri Lanka has over 1,500 km of coastline containing diverse coastal habitats. Increasing population growth and development have degraded coastal environments through issues like coastal erosion, loss of habitats, pollution, and damage to cultural sites. Sri Lanka enacted the Coast Conservation Act in 1981 to regulate development and established the Coast Conservation Department. The Act and subsequent Coastal Zone Management Plan set targets to address key issues through management of erosion, habitats, pollution and special coastal areas while supporting sustainable development. Sri Lanka's coastal program is strengthened by its strong legal framework, leadership, political support and adaptive incremental approach.
This document summarizes coastal management issues in Sri Lanka. It discusses Sri Lanka's coastal policy framework and legislation. Some key issues facing Sri Lanka's coasts are coastal erosion, loss and degradation of coastal habitats like mangroves and coral reefs, and coastal pollution. Coastal erosion is a severe problem, with an estimated 175,000-285,000 square meters of coastal land lost each year. Major causes include natural processes and human activities like sand and coral mining. Rapid development has also degraded coastal ecosystems and archaeological sites.
This document discusses issues related to urban hydrogeology and the impacts of megaregions on groundwater. As populations continue to grow and urbanize, placing increasing demands on water resources, problems will be amplified for groundwater and aquifers. Megaregions consisting of clustered urban regions will see rises in impervious surface cover, disruptions to groundwater recharge, and increased water contamination from numerous sources. Proper planning is needed to manage these stresses on groundwater supplies in order to maintain urban prosperity while protecting this critical resource.
Climate Change and Maritime Sector Essay Sampleessayprime
Climate change is affecting the maritime sector in several ways. Rising sea levels and changes in erosion and sedimentation patterns are impacting ports and shipping channels. Melting polar ice caps are opening new shipping routes but also increasing risks in polar regions for inadequately prepared vessels. Climate change is also negatively impacting marine ecosystems and fish stocks, posing challenges for fisheries managers and the fishing industry. While some new opportunities may arise for the maritime sector through activities like Arctic shipping lanes and mineral exploitation, the sector will also face risks and need to make infrastructure changes to adapt.
The degradation of natural infrastructure like mangroves, wetlands, and coral reefs in urban coastal areas is a significant and growing problem that disproportionately impacts poor populations. Coastal ecosystems provide important benefits like food, income, and protection from hazards, but around half of these ecosystems have been lost globally since 1900 due to development and land use changes. This is especially pressing in Asia and Africa where populations are rapidly growing in coastal cities and rely heavily on natural resources. Continued degradation of remaining coastal ecosystems from climate change and development could lead to irreversible losses of natural infrastructure protection for tens of millions of vulnerable urban coastal dwellers worldwide.
This document analyzes coastal land reclamation in 16 global megacities between the mid-1980s and 2017 using remote sensing data. Shanghai reclaimed the most land, expanding by over 580 km2. In total, over 1,200 km2 of new land was constructed across the 16 cities. The paper aims to evaluate the changing extent of coastal development, classify reclamation patterns, and consider the environmental impacts of large-scale land extension.
This document discusses the projected impacts of sea level rise on coastal areas in the Caribbean. It finds that a 1-2 meter rise in sea levels would displace over 100,000 people in CARICOM nations and cause the loss of 1300 sq km of land. Critical infrastructure like roads and ports would be damaged. Mangrove forests and ecosystems would be destroyed, eliminating their services. The tourism-dependent economy would see losses of 14.8% of GDP and 12.9% of jobs. Adaptation strategies discussed include ecosystem-based approaches, managed retreat from coastal areas, and developing insurance programs.
Implementing climate change policy in an african megacityAdedoyin Lasisi
Lagos, Nigeria is a megacity facing serious challenges from climate change due to its low-lying coastal geography and high population density. Rising sea levels are causing increased coastal erosion and flooding, threatening infrastructure, agriculture, and human settlements. The Lagos state government has implemented policies to address these issues, including beach protection projects, tree planting initiatives, and developing climate change adaptation and mitigation strategies. Coastal erosion and flooding have already increased, underscoring the urgent need for action to prepare for and mitigate the effects of climate change in Lagos.
Political Ecology, Island Tourism Planning, and.pptxHazelPanado
This document summarizes a research paper on the political ecology of climate change adaptation on the tourist island of Boracay in the Philippines. It finds the island's political ecology, characterized by strained relationships among stakeholders, poses challenges for planning processes requiring cooperation. Climate change is expected to exacerbate these divisions. The paper applies a political ecology approach to understand factors like stakeholder perceptions that influence adaptive capacity. It reviews literature on topics like tourism development, political ecology, and urbanization as they relate to the case study. The research design section outlines use of NVivo software to analyze qualitative data from interviews with government, private sector, and NGO stakeholders on Boracay regarding climate adaptation efforts.
Coastal areas face significant environmental pressures from rapid urbanization and tourism development. Tourism is a major economic activity in many coastal regions but can damage the environment through pollution, overdevelopment of infrastructure, and disturbance of ecosystems and wildlife. Sustainable tourism practices and planning are needed to maximize economic benefits while minimizing harm to the coastal environment.
The Effect of Climatic Changes on the Coastal Sandy Strip Extending from Gama...ijtsrd
The northeastern coastal sandy strip of the Nile Delta extending between Gamasa in the west and Ras El Bar in the east consists of sandy plains, interspersed with scattered, incoherent sand dunes, with a limited extension, between which there are low interlocking and branching gaps, the level of which ranges from zero to 5 meters and a maximum of 25.0 meters southwest of the port of Damietta below sea level, with the exception of the area east of Damietta Port, where the chain of southern dunes extends northward to surround the Port from the east and southwest, as well as the area bordering the new city of Damietta from the east.This coastal strip, which is about 27.5 km long and ranges from 3 km to 4.8 km in width, is subject to the threat of partial sea water intrusion, or partial submersion of subsurface water in the event of a one meter rise in sea level because about 25 of the total area of this strip does not exceed one meter above sea level. This strip is characterized by a wide human, demographic, tourism and industrial activity. The new city of Damietta, the port of Damietta, and the city of Rasal Bar are located on it. In view of its tourism importance and its different topography, in this research we explain the different coastal areas of this strip to know which are more threatened than others and the nature of the threat as a result of the increase in sea level as a direct impact of the climate changes that the world is witnessing during this century. Khaled Abdel-Kader Ouda "The Effect of Climatic Changes on the Coastal Sandy Strip Extending from Gamasa in the West to Ras El Bar in the East, Northeastern Nile Delta, Egypt" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-7 | Issue-1 , February 2023, URL: https://www.ijtsrd.com/papers/ijtsrd52698.pdf Paper URL: https://www.ijtsrd.com/other-scientific-research-area/geology/52698/the-effect-of-climatic-changes-on-the-coastal-sandy-strip-extending-from-gamasa-in-the-west-to-ras-el-bar-in-the-east-northeastern-nile-delta-egypt/khaled-abdelkader-ouda
Tucked up in the far north of Peru you'll find Lobitos, a quiet coastal town known
as one of the country's best places to surf. Its seven wave breaks crash and
glide onto sandy beaches and rocky outcrops, and its sunsets are legendary.
But the waves that draw crowds of surfers each year aren't just revered by
those who ride them – their protection is enshrined in law.
This document summarizes a study of chelonian species in the Delta do Jacuí State Park in Brazil. Four chelonian species were found, including the Orbigny's slider turtle which made up 66% of captures. Species occupied different habitat types, from permanent wetlands to temporary and human-influenced areas. The main threats were determined to be habitat destruction, fragmentation, and pollution from human activities.
Importance of coral reefs & its propertiesDr. sreeremya S
As these corals grow and die, they leave behind their calcium carbonate skeletons. On these skeletons, other corals grow. As the year’s passes, walls of coral begin to form: massive walls of rock (Kleypas, 1999).
As the waves and currents beat upon these reefs, nooks, crannies, ledges and caverns form in these walls. Just as there are different types of corals, there are different types of coral reefs. The three major types of reefs are fringing reefs, barrier reefs and atolls(Langdon,2000).Like coral reefs , sponges are also a wonderful resource, which has immense applications (Sreeremya et al.,2018).
Erosão costeira e opções para a proteção do litoral: intervenções e ilusões n...Marco Lyra
O documento descreve intervenções realizadas nos últimos dois anos para combater a erosão costeira em Ovar, Portugal. Apesar de vários tipos de intervenções como reparação de estruturas, tubos de areia e estacas, os resultados foram pouco animadores devido à causa subjacente da falta de areia. Intervenções futuras precisam focar na adição sustentada de areia e em aceitar a dinâmica natural do litoral.
Construção do Dissipador de Energia do Tipo Barra Mar Bagwall com extensão de...Marco Lyra
Este documento descreve a construção de um dissipador de energia do tipo Barra Mar Bagwall de 3 km na praia de Pau Amarelo em Paulista, PE para conter a erosão costeira. O projeto usou geotêxtil Bidim RT-14 para garantir o bom funcionamento dos drenos horizontais e a estabilidade da estrutura. A obra foi concluída em setembro de 2014 e teve um impacto positivo na economia e no uso do solo da área.
PROTEÇÃO COSTEIRA COM O USO DO DISSIPADOR DE ENERGIA BAGWALL NA PRAIA DE PAU ...Marco Lyra
Este documento discute a erosão costeira na praia de Pau Amarelo no município de Paulista, Pernambuco, Brasil. Obras de proteção costeira construídas nas décadas de 1990 e 2000 transferiram o processo erosivo para esta praia, ameaçando um forte histórico. Em 2013, a prefeitura construiu um dissipador de energia Bagwall para conter a erosão. Monitoramento antes e depois mostrou que a estrutura cumpriu seu papel, contendo o recuo da linha de costa durante o período anal
Este documento apresenta o programa do 11o Simpósio de Hidráulica e Recursos Hídricos dos Países de Língua Portuguesa e do VII Congresso sobre Planeamento e Gestão das Zonas Costeiras dos Países de Expressão Portuguesa, que irá ocorrer em Maputo, Moçambique em 2013. O programa inclui mensagens dos presidentes, detalhes do programa, expositores, programa social e pacotes turísticos. O tema central é a "Cooperação para a Água" em reconhecimento do Ano Internacional da Cooperação pela
Uso de estrutura rígida do tipo bagwall para controle da erosão costeira na p...Marco Lyra
Nas últimas décadas, fatores como o aumento da pressão humana, o desenvolvimento urbano, a antropização das bacias hidrográficas e o desenvolvimento de atividades econômicas (como o turismo) contribuíram para diminuição do fornecimento de sedimentos ao litoral. À medida que o homem aumenta sua capacidade de intervir e modificar a paisagem,é reduzida a quantidade de sedimentos que, por via fluvial, alimentam a deriva litorânea.Consequentemente, os problemas ligados à erosão costeira são agravados (Dias, 2003). O mesmo autor destaca, ainda, que as estruturas de engenharia costeira e a degradação dos sistemas naturais (e.g.: dunas, falésias e planície flúvio-marinha) também são responsáveis pela erosão costeira e pelo consequente recuo da linha de costa.
As obras de engenharia costeira têm, em geral, sido utilizadas largamente em todo o mundo para amenizar os problemas afetos ao recuo da linha de costa (sejam eles patrimoniais, sociais, culturais, econômicos e ambientais) (Paula et al., 2012). O presente trabalho tem por objetivo avaliar o uso de um componente de controle que visa reduzir ou mitigar a erosão costeira. A estrutura rígida que foi avaliada é do tipo Bagwall e foi instalada, em 2010, na Praia do Icaraí no Município de Caucaia (litoral Nordeste do Brasil), distante 15 km de Fortaleza, capital do Estado do Ceará.
O Bagwall é uma estrutura rígida construída paralelamente à costa, separando terra e mar. A sua estrutura assemelha-se a uma escadaria (degraus), forma projetada para dissipar a energia das ondas e evitar que o espraio máximo das ondas (wave run-up) atinja a frente urbana marítima e provoque danos físicos e prejuízos econômicos, sociais e patrimoniais. A estrutura construída na Praia do Icaraí é composta por 11 (onze) degraus e utiliza formas geotêxteis preenchidas com concreto (Souza, 2008 e 2011) (Figura 1).
Nota técnica | CONTENSÃO DE EROSÃO COSTEIRAMarco Lyra
Este documento discute tecnologias para contenção de erosão costeira no Brasil. Ele descreve uma tecnologia chamada Bag Wall que tem sido bem-sucedida na costa de Alagoas, promovendo o engrossamento natural da praia ao longo de vários anos sem efeitos colaterais negativos. A tecnologia usa blocos de concreto colocados em formações de degraus que dissipam a energia das ondas e permitem o depósito de areia.
Erosão costeira nas falésias Tibau do Sul – litoral leste do Rio Grande do NorteMarco Lyra
O presente trabalho consistiu na identificação e na compreensão dos mecanismos dos processos erosivos atuantes em
uma zona costeira localizada no município de Tibau do Sul, no litoral leste do Estado do Rio Grande do Norte. A
importância deste trabalho deve-se ao fato de que os processos erosivos atuantes têm provocado o recuo das falésias.
Com base em visitas realizadas in situ observa-se que o recuo sofre influência de processos de origem continental e
marinha. A intensidade destes processos varia tanto em termos espaciais quanto temporais. De um modo os processos
naturais modificadores da dinâmica superficial desta zona costeira são os movimentos de transporte de massa e os
movimentos gravitacionais de massa.
EROSÃO E PROGRADAÇÃO DO LITORAL BRASILEIRO | ALAGOASMarco Lyra
O litoral do estado de Alagoas vem sofrendo com os problemas ambientais decorrentes
da grande expansão em seu uso, devido o mesmo deter uma grande beleza
cênica. Considerando que o litoral é pouco desenvolvido, devido principalmente a
pequena disponibilidade de sedimentos, torna-se este um problema mais preocupante.
As características da costa permitiu dividi-la em três setores: a) Setor norte, entre a
divisa com os estado de Pernambuco e o rio Barra de Santo Antônio, onde predominam
afloramentos de arenitos de praia e recifes de coral e/ou algálicos, e alguns
trechos com falésias vivas de rochas mesozóicas. As praias apresentam erosão
marinha, sendo um dos trechos mais ocupados do litoral. b) Setor central, indo do
rio Barra de Santo Antônio ao rio Barra de São Miguel, englobando a cidade de
Maceió. É o trecho mais urbanizado do litoral, e consequentemente as praias apresentam
grandes evidências de erosão marinha, pela grande pressão antrópica. c)
Setor Sul, entre o rio Barra de São Miguel e o limite sul do Estado de Alagoas. Na
parte sul apresenta extensa planície quaternária, sendo o trecho menos urbanizado.
Indícios de erosão marinha são encontrados em pontos isolados, como por exemplo
em locais onde são encontradas falésias vivas da Formação Barreiras. No geral,
a costa apresenta uma tendência erosiva, sendo esta mais evidente nos setores
central e norte.
A Gestão Costeira no Brasil e os dez anos do Projeto Orla.Marco Lyra
O documento descreve os dez anos do Projeto Orla no Brasil, analisando sua contribuição à gestão costeira sob a perspectiva legal. O Projeto Orla teve sucesso na mobilização da sociedade em torno de seus objetivos de ordenamento da orla marítima, apesar de problemas na implementação das ações propostas. Há necessidade de retomada do projeto focando nos planos de gestão da orla e apoio à sua implementação.
Gestão Costeira: resultado de uma relação dúbia entre o Homem e a NaturezaMarco Lyra
1) A gestão costeira é o resultado da relação entre o Homem e a Natureza, onde o Homem tenta controlar processos naturais que não compreende totalmente, levando a conflitos.
2) As zonas costeiras refletem tudo o que acontece nas bacias hidrográficas e são afetadas por mudanças climáticas e comportamento litosférico.
3) Uma gestão costeira efetiva requer compreender as raízes dos conflitos e problemas que afetam o litoral, baseada no conhecimento c
O documento descreve o dissipador de energia Bagwall, que é construído ao longo da costa para dissipar a energia das ondas sem causar erosão em outras áreas. O Bagwall consiste em formas geotêxteis preenchidas com concreto que são duráveis e protegem as praias e dunas. Ele é uma alternativa para resolver problemas de erosão em áreas urbanas ao longo da costa.
You can easily change/correct a name on your flight ticket under the American Airlines name change policy. The airline provides multiple online and offline modes to place a name change request. To learn more about how to change a name on American Airlines ticket, you can directly approach the airline’s customer support. Moreover, you can connect with a flight expert at +1-866-738-0741 for quick assistance.
How do I plan a Kilimanjaro Climb?
Planning to climb Mount Kilimanjaro is an exciting yet detailed process. Here’s a step-by-step guide to help you prepare for this incredible adventure.
How To Change Your Name On American Airlines Aadvantage.pptxedqour001namechange
American Airlines permits passengers to change/correct names on their AAdvantage account. Also, you can request a name change both online via a web portal and offline over the phone. For further information on how to change your name on American Airlines Advantage, get in touch with the airline’s customer service. Also, you can reach out to a consolidation desk at +1-866-738-0741 for quick assistance.
Best Places to Stay in New Brunswick, Canada.Mahogany Manor
New Brunswick, a picturesque province in eastern Canada, offers a plethora of unique and charming places to stay for every kind of traveler. From the historic allure of Fredericton and the vibrant culture of Saint John to the natural beauty of Fundy National Park and the serene coastal towns like St. Andrews by-the-Sea, there's something for everyone. Whether you prefer luxury resorts, cozy inns, rustic lodges, or budget-friendly options, the best places to stay in New Brunswick ensure a memorable stay, allowing you to fully immerse yourself in the province's rich history, stunning landscapes, and warm hospitality.
https://www.mmanor.ca/blog/best-5-bed-and-breakfast-new-brunswick-canada
Un viaje a Buenos Aires y sus alrededoresJudy Hochberg
A travelogue of my recent trip to Argentina, most to Buenos Aires, but including excursion to Iguazú waterfalls, Tigre, and Colonia del Sacramento in Uruguay
Our excursions in tahiti offer stunning lagoon tours, vibrant marine life encounters, and cultural experiences. We ensure unforgettable adventures amidst breathtaking landscapes and serene waters. For more information, mail us at tracey@uniquetahiti.com.
Discovering Egypt A Step-by-Step Guide to Planning Your Trip.pptImperial Egypt
Travelling to Egypt is like stepping into a time capsule where the past and present coexist, offering a unique blend of history, culture, and stunning landscapes.
See more: https://imperialegypt.com/tour-packages/
Assessing the Influence of Transportation on the Tourism Industry in Nigeriagsochially
This research dissertation investigates the complex interplay between transportation and the tourism industry in Nigeria, aiming to unravel critical insights that contribute to the enhancement of the overall tourist experience. The study employs a multi-faceted approach, literature review establishes a robust theoretical framework, incorporating The Service Quality and Satisfaction Theory to guide the research questions and hypotheses.
The methodology involves the distribution of a structured questionnaire, ensuring a representative sample and facilitating a comprehensive analysis of the gathered data.
Key findings include the nuanced perceptions of transportation infrastructure adequacy, safety and security concerns, financial influences on travel decisions, and the cultural and ecological impacts of transportation choices. These findings culminate in a comprehensive set of recommendations for policymakers and practitioners in the Nigerian tourism industry. The findings contribute to the existing literature by providing actionable insights for policymakers, stakeholders, and researchers in the Nigerian tourism sector.
The recommendations encompass gender-sensitive planning, infrastructure enhancements, safety measures, and strategic interventions to address financial constraints, ensuring a holistic and sustainable development of the tourism industry in Nigeria.
Author: Imafidon Osademwingie Martins
Wayanad-The-Touristry-Heaven to the tour.pptxcosmo-soil
Wayanad, nestled in Kerala's Western Ghats, is a lush paradise renowned for its scenic landscapes, rich biodiversity, and cultural heritage. From trekking Chembra Peak to exploring ancient Edakkal Caves, Wayanad offers thrilling adventures and serene experiences. Its vibrant economy, driven by agriculture and tourism, highlights a harmonious blend of nature, tradition, and modernity.
What Challenges Await Beginners in SnowshoeingSnowshoe Tahoe
Discover the exhilarating world of snowshoeing through our presentation, highlighting the challenges faced by beginners. From physical exertion to technical finesse and braving harsh winter conditions, each step in the snow brings new obstacles and unforgettable adventures. Embrace the challenge and conquer the winter wonderland with confidence!
1. Ocean & Coastal Management xxx (2012) 1e10
Contents lists available at SciVerse ScienceDirect
Ocean & Coastal Management
journal homepage: www.elsevier.com/locate/ocecoaman
High-rise development of the sea-front at Fortaleza (Brazil): Perspectives on its
valuation and consequences
D.P. Paula a, b, *, J.M.A. Dias a, b, Ó. Ferreira a, J.O. Morais b
a
CIMA, Universidade do Algarve, Campus de Gambelas, 8005 Faro, Portugal
b
Universidade Estadual do Ceará/PROPGEO/LGCO, Av. Paranjana 1700, Campus do Itaperi, Fortaleza, Ceará 60740000, Brazil
a r t i c l e i n f o a b s t r a c t
Article history: Occupation of the Fortaleza’s coastline began in the 17th century following the arrival of the Dutch and
Available online xxx subsequent construction of the fortress after which the city is named. Urban development of the coast
began in the early 19th century. The processes of occupation and urbanization along Fortaleza’s coastline
is inseparable from the history of the port and its environmental impacts (silting-up and erosion).
Currently, the coast studied is one of Brazil’s most developed, densely populated and most heavily
modified by coastal engineering structures. Urban development accelerated in the 1980s due to tourism
activities and led to the expansion of high-rise construction along the beachfront. Intensive occupation
thus replaced extensive occupation. This paper explores Fortaleza’s urban development from two
perspectives. Firstly, we use historical data to document the process of high-rise development on the
tourist sea-front and the modification of the same coast with coastal engineering structures designed to
contain erosion triggered by the construction of Mucuripe Harbor. Secondly, we collected field data on
the current urban fabric (including the distribution of high-rise buildings, land prices and land use) and
used these data to analyze urban growth and human pressure on the coastal zone, especially the For-
taleza sea-front. Extensive artificial modification of the coast has enabled Fortaleza to develop into one of
the most important tourist resorts in Brazil. In turn, this increased economic activity has allowed
increasingly extensive and costly coastal engineering structures to be built in the area.
Ó 2012 Elsevier Ltd. All rights reserved.
1. Introduction people live within 100 km of coastline at elevations below 100 m,
where population density is about 3 times greater than the global
Sandy beaches prevail on exposed coastlines around the world average (Small and Nicholls, 2003). In Brazil, for example, coastline
(Bascom, 1980). Currently they are favored sites for recreation and extends for 8500 km including 300 coastal municipalities. Four of
the development of economic activities such as beach tourism (e.g.: the ten (40%) largest metropolitan areas of the Brazil are located on
Klein et al., 2004) and, as a consequence, they are highly valued and the sea-front, including Fortaleza. Half of the population (more
sought after by modern society as a place for primary, secondary or than 90 million people) lives less than 200 km from the sea (Araújo
temporary residence (Parsons and Powell, 2001). This attraction and Costa, 2008). Rapid population growth has been followed by
toward the coastal zone has triggered intense population growth, a process of disorganized urbanization of coastal areas (Muehe,
causing significant expansion of urbanized areas (both in area and 2004).
height) and great human pressure on beaches (Brown and The high level of population density in coastal areas reduces the
McLachlan, 2002). environmental resilience of beach, especially in urban zones. Here
The impacts of urbanization on coastal areas have been widely tourism has contributed to massive occupation of the coast, which
discussed in literature (e.g.: Turner et al., 1996; Dias and Ferreira, has resulted in decrease in environmental quality at recreational
1997; Nicholls and Small, 2002; Sealeum et al., 2007; Ariza et al., beaches (Sealeum et al., 2007; Cervantes and Espejel, 2008; Araújo
2008; Silva et al., 2008). Recent estimates show that 1.2 billion and Costa, 2008). In developed countries beaches are commonly
seen as spaces for leisure and entertainment by modern society
(Ariza et al., 2008). Whereas in developing countries (e.g.: Brazil)
* Corresponding author. Universidade Estadual do Ceará, Av. Paranjana 1700,
Campus do Itaperi, Fortaleza, Geografia, Ceará 60740000, Brazil. Tel.: þ55 85
beaches are often used for commodity exchange. Beaches therefore
32633478; fax: þ55 85 31019885. represent two interacting subsystems: one natural and the other
E-mail addresses: davispp@yahoo.com.br, davispp@hotmail.com (D.P. Paula). socioeconomic (Araújo and Costa, 2008).
0964-5691/$ e see front matter Ó 2012 Elsevier Ltd. All rights reserved.
doi:10.1016/j.ocecoaman.2012.03.004
Please cite this article in press as: Paula, D.P., et al., High-rise development of the sea-front at Fortaleza (Brazil): Perspectives on its valuation and
consequences, Ocean & Coastal Management (2012), doi:10.1016/j.ocecoaman.2012.03.004
2. 2 D.P. Paula et al. / Ocean & Coastal Management xxx (2012) 1e10
Coastal development, along with impacts of human activities In many Brazilian cities the maximum height limitation on
in watersheds, has often led to a sharp decrease in sediment buildings on the sea-front was established in the 1990s, prior to this
supply to coasts, resulting in coastal retreat and beach erosion. time there was only regulation on the construction site. The Land
This has further caused the destruction of housing, community Law (1960s) stipulated that in most coast cities, including Fortaleza,
facilities and financial investments (e.g.: Bird, 2000; Dias, 2005; all residential areas located on the sea-front and next to the river
Ferreira et al., 2008). must had a maximum building height of three (3) to four (4) floors.
Urban beaches are increasingly sandwiched between growing Presently, for most of the coastal cities of Brazil (e.g.: Fortaleza,
urban areas on the continental side and the action of waves and Recife, Rio de Janeiro, Balneário Camboriú) the limit allowed for
tides on the ocean side. Under such conditions, beaches lose their buildings on the sea-front varies from 60 m (20 floors) to 75 m (25
resilience, rapidly changing in shape and extension in response to floors). In Fortaleza’s specific case, this limit is 72 m (24 floors).
high-energy events (Klein et al., 2003). Human-induced changes, Carleial and Araújo (2011) point out that high-rise build-up in
like the urbanization of areas too close to the shoreline, not only Fortaleza was linked to economic activities in the industrial sector,
profoundly alter the natural environment, but also sooner or later extending to high-income neighborhoods for residential, and
later are themselves threatened by beach dynamics. This occurs later commercial, purposes. Somekh (1997) calls this process the
especially during high-energy events, generally prompting the multiplication of urban land, made possible by the elevator. Thus,
construction of hard coastal engineering works (e.g.: Dias, 1990). verticality is said to be linked to the intensive use of urban land
These cause changes in coastal characteristics and dynamics, (density) and the pattern of technological development.
reducing beaches’ ability to adapt to natural events, and directly This study analyzes the major changes that occurred along the
interfering in their sedimentary balance (e.g.: Dias, 1990; Swenson Fortaleza shoreline between the 1960s and 2000s, aiming at
and Franklin, 2000; Nordstrom, 2000; Hansen, 2010). understanding how human interference (intensive urbanization e
Intensive urban development took place in Fortaleza in the connected largely to touristic activities) contributed to the mass
1980s, a period in which Fortaleza’s economic interests shifted occupation of the coast and its associated impacts.
from the hinterland and began to focus almost entirely on the coast
(Dantas, 2002). Thus it ceased to be a harbor city and became one of 2. Materials and methods
the most sought after tourist destinations in Brazil. This trans-
formation was ruled by the intense urbanization of the coastline Information on all urban facilities along the Beira Mar Avenue
starting in the late 1960s and peaking in the 1980s (Vasconcelos (Fortaleza) was recorded during fieldwork carried out in 2010. A
and Coriolano, 2008). Between 1960s and 2011 Fortaleza’s pop- Differential Global Positioning System (DGPSGTRG2/GLONASS)
ulation grew more than 250%. During the first 10 years of the 21st with a precision of 10 mm/1 ppm (kinematic module) was used to
century Fortaleza’s population has grown more than the national record the information about the buildings located along the sea-
average. Fortaleza is the 5th most populous municipality (2,447,409 front. Information collected included geographic coordinates,
peoples) in Brazil (IBGE, 2010). This growth was achieved due to types of building (office, residence, institutional, mixed, hotel and
public and private investments in urban (e.g.: harbor, airport, rail- others), name of the building, number of floors, year of construction
road and freeway) and tourist (e.g.: hotel, resort, restaurant and and maximum distance from the coastline, the width of the beach
night club) infrastructure. sidewalk and its distance from the highest tide line. This informa-
Along Fortaleza’s shoreline, coastal erosion and the encroach- tion was inserted into a database in a Geographic Information
ment of the urban area have turned a natural landscape into System GIS. The geographical identification of the buildings and
a heavily urbanized cityscape where, through hard coastal engi- their use allowed to map zones of interest (e.g.: Public, private and
neering structures (groynes, harbors, marinas, jetties and land technological). Moreover, the buildings geographic distribution
reclamation), the current coastline has become completely artificial. allowed to identify occupied blocks and their occupation type (e.g.:
The way of life in cities with such a high degree of urbanization residential, tourist and commercial activities).
promotes distinct social patterns and physical structures. The The rate of verticalization and value (per square meter) was
intense flow of capital and people, and limitations on physical calculated from documents made available by the City Hall of For-
space, lead to high-rise construction. This type of construction was taleza (PMF), the Regional Council of Realtors (CRECI), the Union of
adopted during the industrial revolution in Europe, where three- to Enterprises for Buying, Selling, Leasing and Managing Property of
six-story buildings appeared in major cities (Mascaró and Ceará (SECOVI-CE), and information found in newspapers. These
Yoshinaga, 2005). In the U.S.A, this type of construction was data showed some inaccuracies in the field and were corrected as
adopted in the 19th century in the cities of Chicago, New York and required. The rate of construction was determined by the ratio
Manhattan Island. The first of these constructions rose to more than between the number of buildings built and the number of years
100 m (or more than 30 floors). In Brazil, high-rise construction at under analysis (10, in this case, since the scale used is based on
coastal areas started in 1920 in the cities of São Paulo (Santos decades).
Beach) and Rio de Janeiro (Copacabana Beach). In the cities of NE To quantify vacant land and the advancement of the urban front,
Brazil, constructions of buildings on sea-front started in aerial photographs of Fortaleza (1968, 1972, 1978, 1995 and 2004),
1950se1960s (e.g.: Fortaleza, Recife and Salvador). TM-LANDSAT (1978, 1980, 1997, 1998, 1999, 2001, 2004 and 2005)
This form of development, also referred to as verticalization, is and QuickBird images (2003 and 2010) were used. This imagery was
characterized by the replacement of urban constructions (houses) converted to the same projection and datum and analyzed using
and open spaces by intensive or multifamily buildings. This process, ARCGIS 9 software. Each geographic item recorded was assigned to
common in modern urban structure, is more prevalent in areas of one or more categories for incorporation into the database, allowing
intense market speculation. In Fortaleza, this occurs mainly in the items with similar land-uses to be extracted and analyzed.
area surrounding the Beira Mar Avenue, built in 1963 and extend- We calculated the distance between the urban front (buildings,
ing from Iracema Beach to Mucuripe Beach, and where the main blocks, sidewalks and stalls) and the maximum wave run-up level
clubs, hotels, flats and restaurants are found. In Rio de Janeiro, high- on the day of the experiment by inserting the coordinates collected
rise processes on the sea-front intensified after the Copacabana in the field into a georeferenced base-map of the area. Distances
Palace hotel construction (Copacabana Beach) in 1923 (Ficher, from each urban structure and the maximum wave run-up were
1994). then calculated.
Please cite this article in press as: Paula, D.P., et al., High-rise development of the sea-front at Fortaleza (Brazil): Perspectives on its valuation and
consequences, Ocean & Coastal Management (2012), doi:10.1016/j.ocecoaman.2012.03.004
3. D.P. Paula et al. / Ocean & Coastal Management xxx (2012) 1e10 3
3. Study area Mucuripe (2.9 km). Immediately adjacent to and connecting these
beaches is the Beira Mar Avenue (Fig. 1). Seventeen geometrically
The study area is in the city of Fortaleza, the capital of Ceará State, dissimilar blocks are strung along the landward side of the avenue.
Northeast Brazil. The city faces the equatorial Atlantic Ocean with Sandy beaches are situated between Mucuripe Harbor (east) and
34 km of sandy beaches and has an average altitude of 21 m above Iracema Beach. About 90% of the coastline is affected by hard
sea level (IBGE, 2010). The geographical position of the city, located coastal engineering structures (Valentini and Rosman, 1992).
just below the equator, makes it a popular tourist destination for Beira Mar beaches are at present characterized by a narrow strip
Europeans and Americans. Fortaleza has the highest population of sand, averaging 45 m wide, with wider beaches in the middle
density among the Brazilian state capitals: about 8000 inhabitants sector and narrower ones to the east. There is a stretch of 300 m
per square kilometer. The city experiences a semi-arid climate with between Náutico Beach and Mucuripe Beach, known as the Volta da
rather small temperature amplitude (average maximum: 30 ; Jurema, which has no beach, but only rocky outcrops (beach rocks)
average minimum 24 ). Its climatic conditions are influenced by the averaging 30 m in width and submerged at high tide. According to
Inter-Tropical Convergence Zone (ITCZ) and variations in the Paula et al. (2008), Beira Mar beaches are intermediate in type,
seasonal phenomena of El Niño (which occurs in the dry season) and tending toward more reflective stages during storm events,
La Niña (marked by rainfall above the regional multi-annual apparently as a consequence of the coastline’s high degree of arti-
average). Geologically, the city sits on the quartz sand sediments of ficial modification.
the coastal plain, consisting of beach and marine terraces, mobile The touristic Beira Mar sea-front of Fortaleza is located in
and fixed sand dunes and fluvialemarine plains. a region with a population density of 8200 inhabitants/km2,
The tidal regime is semidiurnal meso-tidal, ranging from 0.5 m reaching 12,000 inhabitants/km2 at Mucuripe Beach. The average
to 3.87 m (INPH, 1996). For 95% of the year, waves approach from monthly income of the population that lives along Beira Mar
the east (90 ), with dominant significant wave heights of less than Avenue is R$2500 (U.S. $1506). However Náutico Beach residents
1.5 m and wave periods of less than 10 s. Waves from the northeast have an average income of R$4000 (U.S. $2409), five times the
occur occasionally (5% of the time) with significant height greater average income of Fortaleza as a whole: R$ 800 (U.S. $482) (IBGE,
than 1.5 m, and average period of 12 s (INPH, 2002). These waves 2010).
are largely responsible for beach erosion (Melo et al., 1995). The
prevailing winds consistently come from EeSE at an average speed 4. Results and discussion
of 4 m/s, but can reach 7 m/s in the second half of the year (Maia
et al., 1996). 4.1. The historic processes
Fortaleza has more than 30 km de coastline, which is limited by
Pacoti (east) and Ceará (west) rivers. Only a 7.5 km stretch of beach The origins of urban development in Fortaleza can be traced
is considered in this study, corresponding to the traditional tour- back to 1649 AD, when the Dutch constructed the Schoonemborch
istic sea-front e the north coast e comprising the following bea- Fortress on the banks of the Pajeú Creek. Fortaleza was promoted to
ches: Iracema (2.1 km), Meireles (1.5 km), Náutico (1.0 km) and the status of city in 1726. However, intensive occupation of the
Fig. 1. Location of the Fortaleza study area in NW Brazil.
Please cite this article in press as: Paula, D.P., et al., High-rise development of the sea-front at Fortaleza (Brazil): Perspectives on its valuation and
consequences, Ocean Coastal Management (2012), doi:10.1016/j.ocecoaman.2012.03.004
4. 4 D.P. Paula et al. / Ocean Coastal Management xxx (2012) 1e10
coastal area of Fortaleza only began in the early nineteenth century In the process of coastal development in Fortaleza, it is impor-
and was linked to the construction of the city’s harbor. The first tant to bear in mind the occurrence of drought episodes, which are
berth of Fortaleza, of a temporary character, was made of wood and characteristic events in Ceará. For example, the year 1951 was
stone and was built in 1804 in the area of Prainha (east of Praia de a drought year, with precipitation reduced to only 747 mm for the
Iracema) (Espindola, 1978). In 1844 it was replaced by another one, region as a whole (Morettin et al., 1993). Some locations had
resting on wooden piles, located in the vicinity of the current Poço considerably lower rainfall than this average value. As highlighted
da Draga, Iracema Beach (Meyll, 1930). by newspapers of the time (Nobre, 1973), there was a strong urban
These first port facilities quickly became inoperable due to growth that year because labor was cheap and there was an
pronounced silting-up. The problem was so intense that in 1860s it increase in rents, a strong incentive to build. Sources related to the
was no longer possible to embark at low tide (Morais, 1972). At this government (Souza, 1979) calculated that, during that period, close
point, the city was clustered around the port infrastructure, the to eighty million Cruzeiros (more than U.S. $90,000 at the time) was
coastal front only occupying around 3 km (today’s historical center) spent building the city.
near Iracema Beach. Along the coast east of this area (today’s Following an episode of severe coastal erosion, the urban facil-
touristic sea-front), extensive dunes stretched from the coastline ities of Iracema Beach migrated to Meireles Beach, where less
far into the interior. erosion was observed. According to the technical report of the 4th
In order to solve the silting-up problems, a 670-m breakwater District of Ports, Rivers and Canals (DPRPC), erosion of these bea-
(known as the Hawkshaw Breakwater) was constructed (Valentini ches was responsible for the first house collapses in the history of
and Rosman, 1992). However, these works increased the silting Ceará (Parente, 1965). As a temporary solution, the State Govern-
process to the point where a shoal formed along the eastern side of ment authorized the construction of three rip-rap seawalls
the breakwater, while a shallow sandbank completely occupied the between Iracema and Meireles beaches in 1963 and six groynes on
port basin. This is visible in the French Navy hydrographic chart of the west coast.
1867, in which the completed Hawkshaw Breakwater is shown (the Jucá (2000), based on newspaper reports of the time, estimated
only artificial intervention to the coastline at the time). Morais that about 200 m of beach were eroded in a period of 10 years, with
(1972) point out that the low waterline moved 400 m out to sea an average erosion rate of about 20 m/year. Presumably this was
from its previous location, some 130 m from the present location of one of the highest erosion rates recorded on the Ceará coast during
Beira Mar Avenue. In an attempt to reduce coastal sediment supply, the last two centuries. Contrary to what could have been expected,
several dunes were vegetated to curtail aeolian transport. Groynes elite landowners were slow to shift from Iracema Beach to Meireles,
were also built, but the problem persisted. despite all the problems related to coastal erosion.
In 1899, a new port structure (known as the Metal Bridge), was During the 1970s, erosion problems continued along the coast of
built updrift of the Hawkshaw Breakwater. The structure Fortaleza. According to Salim (1998), by 1975 the coastline of For-
(completely permeable) did not induce sediment accumulation, taleza was artificially altered by 12 groynes, 4 rip-rap seawalls, 2
thus avoiding silting-up problems. Port warehouses were even bridges, an oil jetty and 2 breakwaters, spread between Mucuripe
built over the adjacent dunes with the aim of diminishing aeolian Harbor and the mouth of the Ceará River. In the late 1970s, the west
transport to the harbour basin. Nevertheless, the occupation coast of Fortaleza was totally artificial, being mainly defined by
remained restricted to the port area and urban expansion coastal hard engineering structures constructed in response to
continued toward the city center. erosion triggered by construction of the port.
After thirty years, structural problems on the Metal Bridge Thanks to the sense of security lent by the coastal-defense hard
posed safety risks to the arrival and departure of people and goods structures, occupation of the seaside zone increased, namely
to/from Fortaleza. The structure no longer met the social, economic through the construction of Beira Mar Avenue and the replacement
and commercial demands of the city, and was decommissioned. of extensive low-rise buildings (houses) by intensive, high-rise
The port began to be transferred to Mucuripe Bay in 1933, a site developments. This happened mainly in the area between Náu-
previously occupied only by fishing communities (Morais, 1981). tico and Meireles beaches. The 1980s and 1990s were marked by
Two decades before, the Mucuripe dunes had been stabilized with the massive occupation of the coastal zone driven by tourism. This
vegetation, possibly with the dual purpose of preventing the sand intensified the process of high-rise development of the sea-front. In
from reaching the city via easterly winds, and allowing the 1998, the construction of the International Airport of Fortaleza
expansion of the urban agglomeration. confirmed the status of the city as a major tourist destination in
The basic infrastructure for Mucuripe Port was completed in Brazil, indirectly enhancing Beira Mar’s occupation density.
1938. However, the main protective structure- the Titan jetty/ On the other hand, the growth of the city led to stabilization of
breakwater- did not prevent harbor silting-up problems as expec- the dune fields and the canalization of rivers and urban streams,
ted (Pitombeira, 1976). In fact, it induced intense coastal erosion of affecting the vulnerable balance of sediments on the coastline e
Iracema Beach, where the old port was located. These were the first Coastal erosion thus intensified. The same situation was observed
coastal erosion problems recorded along the Fortaleza coastline. In by Costa et al. (2008) on the shoreline of Boa Viagem Beach in Recife
an attempt to stop this erosion, four rip-rap groynes were built (NE Brazil). The 2000s were characterized by the intensification of
prior to 1945. More or less simultaneously, Fortaleza’s urban area high-rise construction as a model for the urban development of the
started to expand toward Mucuripe Harbor (east), occupying more city, especially the touristic sea-front. This process brought new
than 6 km of shore front. Since that time, Fortaleza’s population has investment in urban infrastructure, with the aim of adapting the
increased by 463% (data from the year 2000: IBGE, 2010). In the coastal area to the demands of the tourism industry and the
1950s the Titan breakwater was extended to 1910 m and the requirements for hosting the 2014 World Cup.
Titanzinho (Little Titan) groyne (1 km long) was built at Praia do Urbanization is a major determinant of the vulnerability of the
Futuro, immediately updrift of the Titan, in order to retain littoral coastline to high-energy events (storms). In this case, it is impor-
drift and avoid harbor siltation (Castro, 1989). Success was, tant to point out that these events seem to be increasing in
however, questionable: the harbour continued to accumulate frequency, intensity and impact on coastal infrastructure (Vilibic
sediment and erosion along Beira Mar intensified, leading to the et al., 2000). According to information published by Municipal
reorganization of all the coastal hard engineering structures Government of Fortaleza and circulated in local newspapers, the
between Iracema and Meireles Beaches (Maia et al., 1998). cost of reconstructing the affected areas is very high and Fortaleza
Please cite this article in press as: Paula, D.P., et al., High-rise development of the sea-front at Fortaleza (Brazil): Perspectives on its valuation and
consequences, Ocean Coastal Management (2012), doi:10.1016/j.ocecoaman.2012.03.004
5. D.P. Paula et al. / Ocean Coastal Management xxx (2012) 1e10 5
buildings per year in 1980, 3.3 in 1990). In 2009, there were around
77 buildings, two of which were in the final stages of construction
(Fig. 2). The rate of construction between the 1980s and 1990s was
the highest in history, reaching a figure of 7.1 buildings per year,
driven by investments in tourism and the concentration of the elite
in this stretch of the city. The hectic pace of growth slowed in the
2000s due to the lack of spaces suitable for construction.
4.2.2. Distribution of buildings
The number of buildings per block is variable (1e19), reflecting
an average occupancy rate of 4.6 buildings/block. The number of
buildings per block increases in from Iracema Beach to Mucuripe
Harbor, i.e. from the sector that suffered the greatest erosion
toward the least affected. The buildings also feature different forms
of use, with special emphasis on residential (54.5%) and hotel
facilities (20.8%) (Fig. 3).
The data reveal that the tourist sea-front is mainly residential,
Fig. 2. Number of high-rise buildings constructed on Beira Mar Avenue between the although commercial and hotel facilities have increased over the
1960s and 2000s. last decade. Mucuripe Beach has the largest number of buildings
(37 units), almost 50% of the total sample. Meireles Beach, to the
west, has one third of all the buildings, while Náutico Beach, in the
spent more than 200 million Reais (more than U.S. $120 million) in central sector, has 18% of the buildings. On the whole extension of
the 2000s on such works. It is estimated that, by 2014, over R$400 the sea front, only two blocks are primarily residential (B3-Meireles
million will be spent (U.S. $400 million), exacerbating the level of Beach and B13-Mucuripe Beach).
environmental modification, and probably reaching an unsustain- The buildings are 14.5 floors high on average. The Mucuripe area
able level of economic expenditure. Today, the Fortaleza sea-front is is home to the tallest buildings of all (26 floors) (Fig. 4). This area
totally modified by residential and commercial buildings, hotels, also has six buildings that exceeded the allowable height limit for
flats, restaurants, recreational clubs and unyielding protective constructions on the sea-front. Only two buildings exceeded the
structures. limit in the area of Meireles and Náutico, while other buildings are
in accordance with state law However, it is also at this area that the
4.2. Evolution of urbanization/verticalization largest number of low-rise buildings (up to 5 floors) is found on the
sea front e a church, two houses and ten commercial outlets
4.2.1. Verticalization rate (shops, bars and restaurants). Maia et al. (1996) have observed that
The first high-rise buildings (more than 12 floors) were built in between 1974 and 1994 there was a decrease in average wind
the 1970s near the fish market in the area of Mucuripe, the tradi- speeds of 1.1 m/s and an average temperature rise of 0.8 C in the
tional domain of fishermen and their rafts. According to data from city. Their period of analysis coincides with the peak of high-rise
SECOVI-CE, it is estimated that the average construction rate was 1.6 development along the sea-front of Fortaleza, but further evalua-
buildings per year between 1960 and 2000, varying over time (2.7 tion of the data still needs to be made to make sure that the
Fig. 3. Distribution of buildings by use category along the touristic beach front of Fortaleza in 2010.
Please cite this article in press as: Paula, D.P., et al., High-rise development of the sea-front at Fortaleza (Brazil): Perspectives on its valuation and
consequences, Ocean Coastal Management (2012), doi:10.1016/j.ocecoaman.2012.03.004
6. 6 D.P. Paula et al. / Ocean Coastal Management xxx (2012) 1e10
During high-energy events, damage or threats to human occupa-
tion prompt the reconstruction, reinforcing and amplification of
coastal engineering structures, which in turn maintain or reinforce
the economic and tourism value of adjacent spaces.
The poorly planned of coastal land and rapid development of the
coast has decreased the environmental quality of beaches and
consequently there has been a reduction in the competitive
advantage these tourist areas in relation to tourist areas where the
coast is better preserved. Along sea-front intense high-rise devel-
opment has led to an increasingly artificial coastal zone. This
process is associated with the transformation of natural spaces into
humanized ones.
Increasing human pressure on the coastal zone and the unsus-
tainable use are incompatible with the support capacity of these
environments, which will certainly be reflected in the artificiality of
the landscape and consequent of environmental impacts (e.g.:
Fig. 4. Distribution of buildings by number of floors for each urban block along the
urban flooding, landslide, rise in temperature, coastal erosion and
touristic beachfront of Fortaleza in 2010. marine pollution).
In the specific case of the tourist cities, there was an increase of
urbanization by the sea due to high-rise development of the sea-
temperature variation was not regional, and, in this case, not front. Urban development has exacerbated the problems of coastal
attributable to urbanization. erosion on the main tourist beaches of Brazil. In many cases
(including Fortaleza, Recife, Jaboatão dos Guararapes, Rio de Janeiro,
4.2.3. Distribution of vacant land and valuation of buildings Balneário Camboriú) the coastline itself is defined by urbanization
Currently, there are no blocks on the touristic sea-front occupied (e.g.: buildings line, sidewalk, avenue and road). Coastal vulnera-
by houses (low-rise construction) that could be demolished by the bility is thus defined by the degree of coastal urbanization (Fig. 5).
high-rise building industry, as was the case on the edge of Boa With urbanization close to the sea, waves more easily reach urban
Viagem in Recife, Brazil (Costa et al., 2008). Vacant lots along the infrastructure and endanger drainage systems, sewers, lamp post,
sea-front were completely built over by 2008. By analyzing aerial roads, cycle lane, squares, fish markets, statues, houses, buildings
photographs and satellite images, it can be seen that in 1995 there and sidewalks. Governments are then forced to invest in coastal
were only 10 empty lots suitable for construction, and these were protection to prevent damage to property. Devaluation of public and
all used up by 2008. From 1995 to 2003, there was a reduction of private property is likely to decrease the tourism attractiveness of
70% in vacant areas. Most of the land was used for the construction the city, impacting heavily on the municipality’s.
of office and residential buildings. Due to the lack of space, spec- The advance of the sea in some regions has resulted in the
ulative investors, represented by large construction companies, destruction of urban infrastructure. To prevent coastal impacts and
began to purchase low-rise buildings (up to 5 floors) and demolish allow beach recovery, beach nourishment was carried out in some
them for new ventures. The main targets were social clubs: of the areas (e.g.: Copacabana Beach in Rio de Janeiro, Flamengo
three clubs existing in the 1990s, only one remained in 2011. Embankment-RJ in Rio de Janeiro, Piçarras Beach in Santa Catarina
If this mode of construction were to continue, we envisage that 14 and Iracema Beach in Ceará). Beach nourishment is an attempt to
high-rise buildings could still be constructed along Fortaleza’s sea- artificially stabilize a naturally migrating shoreline. Artificially
front (two on Meireles Beach, five on Náutico Beach and seven on renourished shorelines provide two benefits: increased area for
Mucuripe Beach). It is important to consider that this estimate can recreation and greater protection against coastal storms.
only take effect through the purchase and demolition of existing In Pernambuco a proposal for beach nourishment between the
low-rise buildings. The scarcity of land suitable for construction cities of Jaboatão dos Guararapes and Recife (more than 20 km of
boosted the short-term value of seaside property. According to the coastline) is the subject of current debate. The coastal work will
Regional Board of Realtors of Ceará (CRECI), land value on the cost several billion dollars. The high costs to keep the coast safe and
beachfront has increased more than 80% in the last 40 years. with sufficient environment quality to attract tourism must be
There are properties located in the Meireles and Mucuripe covered by the state, since Brazilian Government is solely respon-
neighborhoods whose prices exceed R$8000/m2 (over U.S. $4800/ sible for investments in coastal protection. This demonstrates the
m2). The high value of these properties is related to natural features long-term unsustainability of economic activities that are incom-
(ocean view) and the proximity to essential services, such as patible with the support capacity of beaches.
pharmacies, hospitals, clinics, schools, day-care centers, colleges, Considering a scenario where the coast is hit by a high energy
supermarkets, banks, malls, department stores and restaurants. The event (sea storm) that exceeds the protections capacity of coastal
Mucuripe and Meireles neighborhoods are the most expensive in engineering structures, destruction of public property (road, side-
Fortaleza, as they offer all the essential services in addition to an walk and power poles), private homes and beach huts and coastal
ocean view. flooding are inevitable. The tendency is then to reconstruct these
defensive structures, making them larger, stronger and “safer”,
4.2.4. Seaward advance of the urban boundary amplifying the sense of security and thus creating a feedback
The complete artificial stabilization of the coastline has facili- process whose consequences are difficult to estimate. In the case of
tated the process of touristic economic development of the sea- Fortaleza, retreating urban facilities would be an uneconomical
front in Fortaleza. At the same time, this development has signifi- short- to medium-term option because of the high associated costs.
cantly contributed to strengthening the coastal engineering struc- This must be viewed in the light of the impetus, now rather slight,
tures that define the shoreline. An expensive feedback loop has to further advance urbanization toward the sea through land
thus been created. The coastal engineering structures provide reclamation, rip-raps and groynes, which, when established, will
occupation security and therefore raise the value of urban spaces. make the sustainable use of natural resources completely
Please cite this article in press as: Paula, D.P., et al., High-rise development of the sea-front at Fortaleza (Brazil): Perspectives on its valuation and
consequences, Ocean Coastal Management (2012), doi:10.1016/j.ocecoaman.2012.03.004
7. D.P. Paula et al. / Ocean Coastal Management xxx (2012) 1e10 7
Fig. 5. High-rise development along Brazilian coastline. In Fortaleza (A) and Jaboatão dos Guararapes (B) the coastline is defined by groynes, rip-raps, sidewalks and buildings.
unfeasible. The hand-in-hand relationship between coastal engi- sidewalks, historical sculptures, and urban roads) and private
neering structures and high-rise development means that the interest (beach huts, hotels, houses, shops, restaurants and bars) in
coastline is increasingly suffering from human intervention the event of a large storm (Fig. 6B). Muehe (2001) emphasizes that
(building of larger structures) and the natural coastal systems have construction on sandy soil and beach strips with a width of less
been completely altered. than 150 m should be avoided due to the risk of flooding and
The average seaward advance of the urban boundary was 174 m erosion by waves.
between the years 1972 and 2008, representing an average change Buildings on Beira Mar Avenue are, on average, 75 m away from
of 4.8 m/year (Fig. 6A). The blocks that migrated the most were B14 the maximum spring tide level. In some places that distance is only
(7.2 m/year), B15 (8.8 m/year) and B16 (7.1 m/year). The last two 25 m, i.e. Meireles Beach. Between the first row of buildings and the
blocks are located on Mucuripe Beach, which has undergone major artificial coastline lie the Beira Mar Avenue, its sidewalk, and beach
transformations in the 1990s, as it was the stretch with the highest huts. Beira Mar Avenue is on average 10 m wide and 62 m from the
number of spaces suitable for construction. Disorderly advance of high tide line. The sidewalk is on average 12 m wide and 50 m away
urban facilities on coastline increases the risk of property damage from the spring high tide level. In some stretches, like on Meireles
in areas of technological (e.g.: Mucuripe Harbor), public (e.g.: Beach, this distance is reduced to 15 m. Beach huts are on average
Please cite this article in press as: Paula, D.P., et al., High-rise development of the sea-front at Fortaleza (Brazil): Perspectives on its valuation and
consequences, Ocean Coastal Management (2012), doi:10.1016/j.ocecoaman.2012.03.004
8. 8 D.P. Paula et al. / Ocean Coastal Management xxx (2012) 1e10
Fig. 6. Seaward advance of the urban boundary per block (A) and zoning of the areas of interest (B) along the touristic sea-front of Fortaleza. The front-line of constructed buildings
as of 1972 is also shown for reference.
40 m from the reach of the tide and waves, making them vulnerable of more than 2 km) (Paula et al., 2008). During storms, it is clear
in the event of sea storms. that the advance of urbanization increases the vulnerability of the
The urban front of Fortaleza is exposed to ocean storm events coast to wave energy, causing physical damage such as destruction
when swell waves cause a build-up of water mass along the coast, of the sidewalk, flooding of the avenue and the infiltration of water
thus causing a local sea-level rise that may overtop the first artifi- into electrical conduits, causing blackouts in the lampposts that
cial line (4.6 m above hydrographic zero, over a long shore distance illuminate the shore.
Fig. 7. Waves crashing over the sidewalk and flooding Iracema Beach during the storm of December, 2009. Source: Rapha Bessa.
Please cite this article in press as: Paula, D.P., et al., High-rise development of the sea-front at Fortaleza (Brazil): Perspectives on its valuation and
consequences, Ocean Coastal Management (2012), doi:10.1016/j.ocecoaman.2012.03.004
9. D.P. Paula et al. / Ocean Coastal Management xxx (2012) 1e10 9
Observation of a storm like the one that took place in Fortaleza expansion of adjacent urban areas, increased high-rise develop-
between March 18 and 24, 2011, in which urban structures were ment, and raised land prices on the sea-front. Despite the coast
easily reached, allows us to identify three areas of impact e the first having been made fully artificial through coastal engineering
zone lies between Iracema and Meireles beaches (west), where structures, the constructed properties are not fully protected from
marine flooding by overtopping often occurs (Fig. 7); the second the action of sea storms, which destroy roads, sidewalks and homes,
zone is restricted to the stretch of Náutico Beach (central), in which and cause coastal flooding. Following any failure of these engi-
the morphology of the beach is altered; and the third zone is sit- neering structures, there is a tendency to rebuild them into larger,
uated on Mucuripe Beach (east), where the waves reach the edge of stronger and “safer” structures, which, in turn, further increase this
the sidewalk, and there is no overtopping of the first artificial line. sense of security.
High-rise development of Fortaleza’s coastline is nearly
4.3. Problems of high-rise urban development complete, and there are no more spaces available. The next stage
will be the demolition of older high-rise buildings (5e12 floors), to
The unregulated development of the sea front of Fortaleza has provide room for much taller buildings (30 floors). In this process,
led to a scarcity of green spaces, which have been replaced by the northern coast of Fortaleza is likely to lose its touristic appeal,
asphalt pavement and concrete, materials that retain heat and and tourists will increasingly seek alternatives in adjacent areas
increase the temperature in the city, leading to thermal discomfort (Praia do Futuro and Barra do Ceará) or nearby (Beach Park and
for the communities living on the outskirts. Covering the city in Cumbuco). It seems conceivable that, given the other viable
impermeable materials, such as asphalt and concrete, helps to alternatives, the north coast of Fortaleza will be avoided by beach
increase the risk of flooding, as both storm water and sea water can tourism operators in the medium term, possibly resulting in its
accumulate near the coastline, as has already occurred at Iracema economic devaluation (at least in the adjacent and nearby areas).
Beach. Another factor contributing to increased flood-risk in areas In the short, Fortaleza’s tourist coast (high-rise development of
of Fortaleza is the extensive excavation of sand ridges for numerous the sea-front) will extend westward to enable the city to host the
sea-front constructions. World Cup 2014. New tourist infrastructure (e.g.: hotel, resorts,
An unsavory result of the intense urbanization of the city, restaurant) is required to accommodate the expected visitors. The
especially the sea-front, is that the sewerage network has failed to result will be major changes in the landscape to its appropriation by
cope with the growing population (more than 2.5 million inhabi- private interests, as well as significant impacts on the social and
tants), causing wastewater to be illegally dumped into storm water economic fabric of the city. In the future, economic interests,
drains. Once this water reaches rivers and beaches, the pollution tourism potential and environmental quality should be carefully
exceeds the allowable health limits for bathing. Beaches on the weighed up by planning authorities, allowing a true estimate of the
tourist coast have elevated concentrations of fecal coliforms linked sustainability or otherwise of the current model of high-rise coastal
to storm water carrying sewage (e.g.: Silva et al., 2009). development.
According to Bulletin No. 18/2011 of the State Bureau of
Environment (SEMACE, 2011), which reports weekly ratings of
the coastline, Iracema and Mucuripe beaches were unsuitable Acknowledgements
for bathing between April 4 and May 2, 2011. In addition, the
increased production of domestic garbage eventually clogs drains The authors would like to acknowledge the support of Conselho
and prevents the flow of sediment to the beach. Nacional de Desenvolvimento Científico e Tecnológico-CNPq
The poorly planned occupation of coastal areas has led to arti- (479255/2009-1) and Fundação Cearense de Apoio ao Desenvolvi-
ficiality of the landscape, reducing environmental resilience. The mento Científico e Tecnológico-FUNCAP (Support Program for
construction of urban infrastructure and stabilizations of sand Centers of Excellence-PRONEX). Davis Pereira de Paula was sup-
dunes have contributed to an imbalance in sediment supply to the ported by FUNCAP. We would like to thank the teachers and
beaches of the north coast of Fortaleza. The intensification of students of the Laboratório de Geologia e Geomorfologia Costeira e
urbanization on the sea-front has effectively fixed the backshore Oceânica (Univ. Estadual do Ceará) and the Centro de Investigação
zone, interfering with the natural mobilization of sediment Marinha e Ambiental (Univ. Algarve). The authors are grateful to
between the emerged and submerged beach. The loss of the Dr. Simon Connor for the English revision of the document.
coastline’s ability to move makes it more vulnerable to severe
erosion in the event of a storm.
References
5. Conclusion
Araújo, M.C.B., Costa, M.F., 2008. Environmental quality indicators for recreational
beaches classification. Journal of Coastal Research, 1439e1449.
The process of urbanization of Fortaleza’s Beira Mar was initi- Ariza, E., Jiménez, J.A., Sardá, R., 2008. A critical assessment of beach management
ated as a result of port activities: first on Iracema Beach and later on the Catalan Coast. Ocean Coastal Mangement 51, 141e160.
with the construction of Mucuripe Harbor. The construction of the Bascom, W., 1980. Waves and Beaches: The Dynamics of the Ocean Surface. Anchor
Press, Garden City, New York.
Titan Breakwater induced strong coastal erosion that reached the Bird, E.C.F., 2000. Coastal Geomorphology: An Introduction. John Wiley, Chi-
urban front of Iracema Beach, followed by the construction of chester, UK.
coastal engineering structures that artificially altered the coastline. Brown, A.C., McLachlan, A., 2002. Sandy shore ecosystems and the threats facing
them: some predictions for the year 2025. Environmental Conservation 29,
Since 1975, Fortaleza’s coastline has been essentially a man-made 62e77.
one. Erosion triggered by the construction of harbor defenses Carleial, A.N., Araújo, A.M.M., 2011. Atlas de Fortaleza 2000. EDUECE, 110 pp.
contributed to the decentralization of occupation of Fortaleza’s sea Castro, J.W.A., 1989. Dinâmica sedimentar entre as praias do Futuro e Iparana.
Centro de Pesquisas em Geologia Ambiental, Fortaleza.
front. The city’s recorded history clearly demonstrates that early
Cervantes, O., Espejel, I., 2008. Design of an integrated evaluation index for recre-
engineering attempts to stabilize the Fortaleza coast caused port ational beaches. Ocean Coastal Mangement 51, 410e419.
facilities to become completely silted up and the western beaches Costa, M.F., Araújo, M.C.B., Cavalvanti, J.S.S., Souza, S.T., 2008. Verticalização da Praia
to erode. de Boa Viagem (Recife, Pernambuco) e suas consequências sócio-ambientais.
Revista de Gestão Costeira Integrada 8 (2), 233e245.
Later, the sense of security instilled by coastal engineering Dantas, E.W.C., 2002. Mar à Vista: estudo da maritimidade em Fortaleza, first ed.,
structures, along with increasing demand for tourism, led to the vol. 1. Museu do Ceará/SECUL, Fortaleza, pp. 1e134.
Please cite this article in press as: Paula, D.P., et al., High-rise development of the sea-front at Fortaleza (Brazil): Perspectives on its valuation and
consequences, Ocean Coastal Management (2012), doi:10.1016/j.ocecoaman.2012.03.004
10. 10 D.P. Paula et al. / Ocean Coastal Management xxx (2012) 1e10
Dias, J.M.A., 2005. Evolução da zona costeira portuguesa: forçamentos antrópicos e Muehe, D., 2001. Critérios morfodinâmicos para o estabelecimento de Limites da
naturais. In: Encontros Científicos e Turismo, Gestão, Fiscalidade. ISSN: Orla costeira para fins de gerenciamento. Revista Brasileira de Geomorfologia 2
1646-2408, vol. 1, pp. 7e27. (1), 35e44.
Dias, J.A., Ferreira, Ó., 1997. Gestão costeira e conhecimento científico: Uma per- Nicholls, R.J., Small, C., 2002. Improved estimates of coastal population and expo-
spectiva integrada. In: Colectânea de Ideias sobre a Zona Costeira de Portugal. sure to hazards released. EOS Transactions 83 (2), 301e305.
Associação Eurocoast e Portugal, Porto, pp. 229e237. Nobre, G.S., 1973. A capital do Estado do Ceará. Gráfica Editorial Cearense, Fortaleza.
Dias, J.M.A., 1990. A Evolução actual do litoral português. In: Geonovas. ISSN: 0870- 1e82.
7375, vol. 11, Lisboa, Portugal. pp. 15e28. Nordstrom, K.F., 2000. Beaches and Dunes on Developed Coasts. Cambridge
Espindola, I., 1978. O Porto de Fortaleza, Fortaleza-CE, 61 pp. University Press, Cambridge, UK.
Ferreira, Ó., Dias, J.M.A., Taborda, R., 2008. Implications of sea-level rise for conti- Parente, J.G., 1965. Relatório técnico dos trabalhos executados pelo 4 Distrito de
nental Portugal. Journal of Coastal Research 24 (2), 317e324. Portos, Rios e Canais em Fortaleza, pp. 1e10.
Ficher, S., 1994. Edifícios altos no Brasil. Espaço Debates, São Paulo 37, 61e76. Parsons, G.R., Powell, M., 2001. Measuring the cost of beach retreat. Coastal
Hansen, H.S., 2010. Modelling the future coastal zone urban development as Management 29, 91e103.
implied by the IPCC SRES and assessing the impact from sea level rise. Land- Paula, D.P., Soares, R.C., Morais, J.O., Dias, J.M.A., Pinheiro, L.S., 2008. Aplicação de
scape and Urban Planning SI 98, 141e149. geoindicadores na avaliação da tendência evolutiva do litoral oeste de Fortaleza-
IBGE e Instituto Brasileiro de Geografia e Estatística, 2010. Censo Populacional. CE, Brazil. In: III Congresso Brasileiro de Oceanografia, Fortaleza-CE. pp. 1e3.
INPH e Instituto de Pesquisas Hidroviárias, 2002. Relatório final de medições de Pitombeira, E.S., 1976. Deformação das ondas por difração do molhe do porto de
ondas, No. 013/2002, Código Pécem 130/41, Rio de Janeiro. pp. 1e62. Mucuripe (FortalezaeCearáeBrasil). Arquivo de Ciências do Mar 16 (1), 55e58.
INPH e Instituto de Pesquisas Hidroviárias, 1996. Relatório final dos estudos em Salim, L.H., 1998. Implementação do modelo numérico de evolução de praia e
modelo físico reduzido de agitação do Porto do Pecém-CE, No. 71/96, Rio de Genesis e em um trecho litorâneo da cidade de Fortaleza e Ceará, MSc thesis.
Janeiro. 38 pp. Sealeum, S., Inkapattanakul, W., Navanugraha, C., 2007. Environmental quality
Jucá, G.N.M., 2000. Verso e reverso do perfil urbano de Fortaleza (1945e1960). assessment criteria for recreational beach: a case study of Cha-Am Beach,
Secretaria de Cultura e Desporto do Estado do Ceará, São Paulo, Annablume, Petchburi Province. Environment and Natural Resources Journal 5 (1), 69e79.
Fortaleza. SEMACE e Superintendência Estadual do Meio Ambiente, 2011. Boletim Semanal de
Klein, R.J.T., Nicholls, R.J., Thomalla, F., 2003. Resilience to natural hazards: how Classificação das praias.
useful is this concept? Environmental Hazards 5, 35e45. Silva, J.S., Leal, M.M.V., Araújo, M.C.B., Barbosa, S.C.T., Costa, M.F., 2008. Spatial and
Klein, Y.L., Osleeb, J.P., Viola, M.R., 2004. Tourism-generated earnings in the coastal temporal patterns of use of Boa Viagem Beach, Northeast Brazil. Journal of
zone: a regional analysis. Journal of Coastal Research SI 20, 1080e1088. Coastal Research 24 (1A), 79e86.
Maia, L.P., Jiménez, J.A., Serra, J., Morais, J.O., Sánchez-Arcilla, A., 1998. The Fortaleza Silva, A.C., Pinheiro, L.S., Maia, L.P., Morais, J.O., 2009. Estudo hidrodinâmico E
(NE Brazil) waterfront: port versus coastal management. Journal of Coastal bacteriológico associado às fontes Pontuais de Poluição ao longo do litoral de
Research 14 (4), 1284e1292. Fortaleza. Revista Brasileira de Recuros Hídricos 14 (2), 83e90.
Maia, L.P., Raventos, J.S., Oliveira, P.M.P., Meireles, A.J.A., 1996. Alterações climáticas Small, C., Nicholls, R.J., 2003. A global analysis of human settlement in coastal zones.
na região de Fortaleza causadas por fatores naturais e antrópicos. Revista de Journal of Coastal Research 19 (3), 584e599.
Geologia 9, 111e121. Somekh, N., 1997. A cidade vertical e o urbanismo modernizador. Studio Nobel, São
Mascaró, J.L., Yoshinaga, M., 2005. Infra-estrutura urbana, Porto Alegre, 207 pp. Paulo.
Melo, E., Alves, J.H.G.M., Jorden, V., Zago, F., 1995. Instrumental confirmation of the Souza, J.G., 1979. O Nordeste Brasileiro: uma experiência de desenvolvimento
arrival of North Atlantic Swell to the Ceará coast. In: Proceedings of the 4th regional. Banco do Nordeste do Brasil, Fortaleza, pp. 1e410.
International Conference on Coastal and Port Engineering in Developing Swenson, J.J., Franklin, J., 2000. The effects of future urban development on habitat
Countries e COPEDEC IV, Rio de Janeiro, Brazil, 1984e1996. fragmentation in the Santa Monica Mountains. Landscape Ecology 15, 713e730.
Meyll, A.H., 1930. Porto de Fortaleza Memória justificativa do ante-projeto de Turner, I.M., Tan, H.T.W., Chua, K.S., 1996. Relationships between herb layer and
melhoramento de Porto na Enseada de Mucuripe, Fortaleza, pp. 1e88. canopy composition in tropical rain forest successional mosaic. In: Singapore. J.
Morais, J.O., 1972. Processo de assoreamento do Porto de Mucuripe. Arquivo de Trop. Ecol., vol. 12, pp. 843e851.
Ciências do Mar 12 (2), 139e149. Valentini, E.M.S., Rosman, P.C., 1992. Erosão costeira em Fortaleza. Revista Brasileira
Morais, J.O., 1981. Evolução sedimentológica da Enseada do Mucuripe. Arquivo de de Recursos Hídricos 10 (1), 19e36.
Ciências do Mar 21 (1), 19e46. Vasconcelos, F.P., Coriolano, L.N.M.T., 2008. Impactos sócio-ambientais no litoral:
Morettin, P.A., Toloi, C.M.C., Gait, N., Mesquita, A.R., 1993. Analysis of the relation- um foco no turismo e na gestão integrada da zona costeira no Estado do Ceará/
ships between some natural phenomena: atmospheric precipitation, mean sea Brasil. Revista de Gestão Costeira Integrada 8 (2), 259e275.
level and sunspots. Revista Brasileira de Meteorologia 8 (1), 11e21. Vilibic, I., Leder, N., Smircic, A., 2000. Storm surges in the Adriatic Sea: an impact on
Muehe, D., 2004. Erosion in the Brazilian coastal zone: an Overview. Journal of the coastal infrastructure. Coastal Zone Management. Periodicum Biologorum
Coastal Research SI 39, 43e48. 102 (1), 483e488.
Please cite this article in press as: Paula, D.P., et al., High-rise development of the sea-front at Fortaleza (Brazil): Perspectives on its valuation and
consequences, Ocean Coastal Management (2012), doi:10.1016/j.ocecoaman.2012.03.004