This presentations explains the main definitions related to flood risk management. and how to assess the Vulnerability of the society towards flood dangers. and flood risk analysis process. and gives some examples of flood risk assessment applications.
APPLICATIONS OF REMOTE SENSING AND GIS TECHNOLOGIES IN FLOOD RISK MANAGEMENTrsmahabir
Flooding is the most common of all major disasters that regularly affect populations and results in extensive damage to property, infrastructure, natural resources, and even to loss of life. To ensure better outcomes, planning and execution of flood management projects must utilize knowledge on a wide range of factors, most of which are of a spatial nature. Advances in geospatial technologies, specifically remote sensing and Geographic Information Systems (GIS), have enabled the acquisition and analysis of data about the Earth's surface for flood mitigation projects in a faster, more efficient and more accurate manner.
Remote sensing and GIS have emerged as powerful tools to deal with various aspects of flood management in prevention, preparedness and relief management of flood disaster. GIS facilitates integration of spatial and non-spatial data such as rainfall and stream flows, river cross sections and profiles, and river basin characteristics, as well as other information such as historical flood maps, infrastructures, land use, and social and economic data. Such data sets are critical for the in-depth analysis and management of floods.
Remote sensing technologies have great potential in overcoming the information void in the Caribbean region. The observation, mapping, and representation of Earth’s surface have provided effective and timely information for monitoring floods and their effect. The potential of new air- and space-borne imaging technologies for improving hazard evaluation and risk reduction is continually being explored. They are relatively inexpensive and have the ability to provide information on several parameters that are crucial to flood mapping and monitoring.
The damaging effect of most common natural disaster flood can be minimized through the area risk assessment with the help of GIS technology and Remote Sensing techniques. With the help of Prayagraj district map and corresponding satellite images, some flood causing criteria raster layer, flood risk map can be obtained by multi-criteria evaluation approach AHP.
This presentations explains the main definitions related to flood risk management. and how to assess the Vulnerability of the society towards flood dangers. and flood risk analysis process. and gives some examples of flood risk assessment applications.
APPLICATIONS OF REMOTE SENSING AND GIS TECHNOLOGIES IN FLOOD RISK MANAGEMENTrsmahabir
Flooding is the most common of all major disasters that regularly affect populations and results in extensive damage to property, infrastructure, natural resources, and even to loss of life. To ensure better outcomes, planning and execution of flood management projects must utilize knowledge on a wide range of factors, most of which are of a spatial nature. Advances in geospatial technologies, specifically remote sensing and Geographic Information Systems (GIS), have enabled the acquisition and analysis of data about the Earth's surface for flood mitigation projects in a faster, more efficient and more accurate manner.
Remote sensing and GIS have emerged as powerful tools to deal with various aspects of flood management in prevention, preparedness and relief management of flood disaster. GIS facilitates integration of spatial and non-spatial data such as rainfall and stream flows, river cross sections and profiles, and river basin characteristics, as well as other information such as historical flood maps, infrastructures, land use, and social and economic data. Such data sets are critical for the in-depth analysis and management of floods.
Remote sensing technologies have great potential in overcoming the information void in the Caribbean region. The observation, mapping, and representation of Earth’s surface have provided effective and timely information for monitoring floods and their effect. The potential of new air- and space-borne imaging technologies for improving hazard evaluation and risk reduction is continually being explored. They are relatively inexpensive and have the ability to provide information on several parameters that are crucial to flood mapping and monitoring.
The damaging effect of most common natural disaster flood can be minimized through the area risk assessment with the help of GIS technology and Remote Sensing techniques. With the help of Prayagraj district map and corresponding satellite images, some flood causing criteria raster layer, flood risk map can be obtained by multi-criteria evaluation approach AHP.
detection and ranking of vulnerable areas to urban flooding using gis and asm...INFOGAIN PUBLICATION
Dakar region is confronted in recent years with episodes of repetitive and devastating floods. The structures in charge of the matter, yet does not have enough knowledge of space and tools to preciselylocate vulnerable areas. It is in this particular context that we have through this study process by coupling GIS and ASMC techniques. We aim in this coupling, to develop an efficient tool for support decision making in terms of identification strategies, intervention or adaptation. The defined criteria for this are: the rainfall, the groundwater level, geology, topography, wetlands, population density, living standards and the type of habitat. We have used an analytical hierarchical process (AHP) by foursteps: a) the breakdown of problematic vulnerabilities; b) scanning and harmonization of layers factors (criteria); c) the weight assignment of different layers criteria according to the comparison procedure in pairs; d) and aggregation criteria layers, through the weighted superposition of the SOC software tool. This has helped us to hierarchically locate the vulnerable are as to flooding. The results have showed a very low vulnerability (1.67%), low vulnerability (50.53%), high vulnerability (43.66%) and a very high vulnerability (4.14%). Approximately, 50% of the Dakar region are vulnerable to flooding and particularly the suburban area concerning the departments of Pikine and Guediawaye. These informations are very useful for governments in the effective and sustainable flood management and identification of priority intervention areas.
Assessing Drought and Enabling Adaptation through Rain Water HarvestingFECTSL
Rain water harvesting is a tested environmentally friendly mitigation option that has been used
traditionally in Sri Lanka to mitigate drought risk. Its enhanced use can serve as an adaptation
strategy for rising water stress due to climate and land use change. This 12-month project
assessed the water scarcity and the potential for Rain Water Harvesting (RWH) of a village in
Eastern Sri Lanka, Idamelanda, which is vulnerable to severe droughts as established through
interviews with the villagers and local government officials. Meteorological data for the area was
used to assess the severity, making use of two independent assessment methodologies for
meteorological drought. These meteorological drought indices were found to coincide with a
measure of drought disaster for Eastern Sri Lanka – that is the relief payments for drought. In the
next stage, the meteorological data and drought indices were used to design the collector and
storage tanks of a prototypical RWH unit, which is inexpensive and feasible with local technical
resources. A concept note on developing the RWH unit in the community was drawn up so that
RWH may be implemented in Idamelanda as a prototype
Community-based early warning systems (CBEWS) is a “people-centered” system and empowers individuals
and communities threatened by hazards to act on sufficient time and in an appropriate manner to reduce the
possibility of personal injury, loss of life, damage to property, environment and loss of livelihood. These things
lead to the development of the device necessary for the protection of the community against flood hazards as it
allows people to get prepared with sufficient time. An alarm system was developed to monitor the water level on
Salog River that overflows during heavy rains. The water level sensors were submerged in a canal of water to
test the functionality of the device before its installation. Computer programs were created to enhance the
monitoring of water level: the River Monitor Software and the Water Level Monitor. The LED arrays emit light
according to water level; green for low, orange for medium, and red for high. A siren also alarms with different
intervals (30 seconds for low, 15 seconds for medium, and a continuous alarm for high). Automatic emergency
lighting was integrated in the design and lights up during power outages powered by rechargeable sealed battery
that charges when ac power is supplied to the device. Levels were established based on available data; low water
level means awareness; medium water level means preparedness and high water level means immediate
response is necessary.
Disaster Management in Taiwan by using GIS technology.Pankaj Saini
Due to the particular geographical location and geological conditions, Taiwan suffers from many natural hazards, such as typhoons, flooding, landslides, land debris, and earthquakes.
which often cause series property damages and even life losses.
The sufferings and risks can be minimized by developing suitable strategies for disaster management.
Strategies for natural disastger management and mitigation paper - copyJIT KUMAR GUPTA
Destruction is integral part of construction. It is the law of the nature to keep the world going on, both positively and negatively. Accordingly, disasters are integral part of the creation of this planet, which also came into existence as a product of disaster itself. However, nature and context of disasters have changed over the years. Most of the disasters are now the outcome of the way human beings are treating this planet earth, environment and ecology. Ruthless exploitation of resources and destruction of nature, led by rapidly increasing human numbers and attitude of greed and consumerism have led to large number of disasters hitting the planet earth. Looking at the entire context with Disasters, becoming the cause of large scale destruction and damage, they have emerged as an area of major concern and focus of local, natural and international communities. India with more than two third of its area prone to one or other kind of natural disasters, has so far focused largely on post-disaster relief. This approach has not yielded much dividends. Adoption of pre-disaster preparedness to mitigate the losses and sufferings, appears to be a better option to mitigate /dilute the impact of disasters. Vulnerability Altas, depicting the nature and extent of area prone to disasters, should be made available to all user agencies including various professional institutions imparting education in architecture, engineering, planning etc. for managing the disasters at local/regional levels.
Considering the enormity of losses caused by natural disasters it will be appropriate to introduce disaster mitigation and management as one of subject of study in technical institution. Preparation of Regional Plans and Master Plans should clearly identify the disaster prone areas at local level and specify strategies for their safer development. In addition, Preparation of local vulnerability plans, increased role of technical institutions. making suitable amendments in local building bye-laws for making built environment disaster resistant, evolving simple and cost effective techniques of building construction and retrofitting. improving and upgrading locally available building materials and construction techniques, preparing model earthquake and cyclone resistant houses in disaster prone areas, including town planning and development norms as part of technical guidelines published by BIS could be used as options for managing effectively disasters. Global co-operation between nations would be needed for compiling large number of studies undertaken and success stories of disaster prevention, mitigation and management to help and support vulnerable states and nations . Adopting Holistic approach towards disaster mitigation and management and working with nature, restoring the damage caused to environment, ecology and bio-diversity will remain critical, crucial and valuable to minimize disasters
Forecasting and communication key elements for low-cost fluvial flooding earl...IJECEIAES
Fluvial flooding occurs when a river overspills its banks due to excessive rainfall, and it is the most common flood event. In urban areas, the increment of urbanization makes communities more susceptible to fluvial flooding since the excess of impervious surfaces reduced the natural permeable areas. As flood prevention strategies, early warning systems (EWS) are used to reduce damage and protect people, but key elements need to be selected. This manuscript proposes the monitoring instruments, communication protocols, and media to forecast and disseminate EWS alerts efficiently during fluvial floods in urban areas. First, we conducted a systematic review of different EWS architectures for fluvial floods in urban areas and identified that not all projects monitor the most important variables related to the formation of fluvial floods and most use communication protocols with high-energy consumption. ZigBee and LoRaWAN are the communication protocols with lower power consumption from the review, and to determine which technology has better performance in urban areas, two wireless sensor networks were deployed and simulated in two urban areas susceptible to fluvial floods using Radio Mobile software. The results showed that although Zigbee technology has better-received signal strength, the difference with LoRAWAN is lower than 2dBm, but LoRaWAN has a better signal-to-noise ratio, power consumption, coverage, and deployment cost.
Intelligent water conservation and management techniques need to be adopted by the industry such that water can be optimally utilized. Now as per the recent forecasts and frequent occurrence of extreme events, the necessity of such management has become more significant. Based on this need, some start-up businesses can be established which can help to achieve the water conservation goals. Five such ideas are discussed in this presentation.
detection and ranking of vulnerable areas to urban flooding using gis and asm...INFOGAIN PUBLICATION
Dakar region is confronted in recent years with episodes of repetitive and devastating floods. The structures in charge of the matter, yet does not have enough knowledge of space and tools to preciselylocate vulnerable areas. It is in this particular context that we have through this study process by coupling GIS and ASMC techniques. We aim in this coupling, to develop an efficient tool for support decision making in terms of identification strategies, intervention or adaptation. The defined criteria for this are: the rainfall, the groundwater level, geology, topography, wetlands, population density, living standards and the type of habitat. We have used an analytical hierarchical process (AHP) by foursteps: a) the breakdown of problematic vulnerabilities; b) scanning and harmonization of layers factors (criteria); c) the weight assignment of different layers criteria according to the comparison procedure in pairs; d) and aggregation criteria layers, through the weighted superposition of the SOC software tool. This has helped us to hierarchically locate the vulnerable are as to flooding. The results have showed a very low vulnerability (1.67%), low vulnerability (50.53%), high vulnerability (43.66%) and a very high vulnerability (4.14%). Approximately, 50% of the Dakar region are vulnerable to flooding and particularly the suburban area concerning the departments of Pikine and Guediawaye. These informations are very useful for governments in the effective and sustainable flood management and identification of priority intervention areas.
Assessing Drought and Enabling Adaptation through Rain Water HarvestingFECTSL
Rain water harvesting is a tested environmentally friendly mitigation option that has been used
traditionally in Sri Lanka to mitigate drought risk. Its enhanced use can serve as an adaptation
strategy for rising water stress due to climate and land use change. This 12-month project
assessed the water scarcity and the potential for Rain Water Harvesting (RWH) of a village in
Eastern Sri Lanka, Idamelanda, which is vulnerable to severe droughts as established through
interviews with the villagers and local government officials. Meteorological data for the area was
used to assess the severity, making use of two independent assessment methodologies for
meteorological drought. These meteorological drought indices were found to coincide with a
measure of drought disaster for Eastern Sri Lanka – that is the relief payments for drought. In the
next stage, the meteorological data and drought indices were used to design the collector and
storage tanks of a prototypical RWH unit, which is inexpensive and feasible with local technical
resources. A concept note on developing the RWH unit in the community was drawn up so that
RWH may be implemented in Idamelanda as a prototype
Community-based early warning systems (CBEWS) is a “people-centered” system and empowers individuals
and communities threatened by hazards to act on sufficient time and in an appropriate manner to reduce the
possibility of personal injury, loss of life, damage to property, environment and loss of livelihood. These things
lead to the development of the device necessary for the protection of the community against flood hazards as it
allows people to get prepared with sufficient time. An alarm system was developed to monitor the water level on
Salog River that overflows during heavy rains. The water level sensors were submerged in a canal of water to
test the functionality of the device before its installation. Computer programs were created to enhance the
monitoring of water level: the River Monitor Software and the Water Level Monitor. The LED arrays emit light
according to water level; green for low, orange for medium, and red for high. A siren also alarms with different
intervals (30 seconds for low, 15 seconds for medium, and a continuous alarm for high). Automatic emergency
lighting was integrated in the design and lights up during power outages powered by rechargeable sealed battery
that charges when ac power is supplied to the device. Levels were established based on available data; low water
level means awareness; medium water level means preparedness and high water level means immediate
response is necessary.
Disaster Management in Taiwan by using GIS technology.Pankaj Saini
Due to the particular geographical location and geological conditions, Taiwan suffers from many natural hazards, such as typhoons, flooding, landslides, land debris, and earthquakes.
which often cause series property damages and even life losses.
The sufferings and risks can be minimized by developing suitable strategies for disaster management.
Strategies for natural disastger management and mitigation paper - copyJIT KUMAR GUPTA
Destruction is integral part of construction. It is the law of the nature to keep the world going on, both positively and negatively. Accordingly, disasters are integral part of the creation of this planet, which also came into existence as a product of disaster itself. However, nature and context of disasters have changed over the years. Most of the disasters are now the outcome of the way human beings are treating this planet earth, environment and ecology. Ruthless exploitation of resources and destruction of nature, led by rapidly increasing human numbers and attitude of greed and consumerism have led to large number of disasters hitting the planet earth. Looking at the entire context with Disasters, becoming the cause of large scale destruction and damage, they have emerged as an area of major concern and focus of local, natural and international communities. India with more than two third of its area prone to one or other kind of natural disasters, has so far focused largely on post-disaster relief. This approach has not yielded much dividends. Adoption of pre-disaster preparedness to mitigate the losses and sufferings, appears to be a better option to mitigate /dilute the impact of disasters. Vulnerability Altas, depicting the nature and extent of area prone to disasters, should be made available to all user agencies including various professional institutions imparting education in architecture, engineering, planning etc. for managing the disasters at local/regional levels.
Considering the enormity of losses caused by natural disasters it will be appropriate to introduce disaster mitigation and management as one of subject of study in technical institution. Preparation of Regional Plans and Master Plans should clearly identify the disaster prone areas at local level and specify strategies for their safer development. In addition, Preparation of local vulnerability plans, increased role of technical institutions. making suitable amendments in local building bye-laws for making built environment disaster resistant, evolving simple and cost effective techniques of building construction and retrofitting. improving and upgrading locally available building materials and construction techniques, preparing model earthquake and cyclone resistant houses in disaster prone areas, including town planning and development norms as part of technical guidelines published by BIS could be used as options for managing effectively disasters. Global co-operation between nations would be needed for compiling large number of studies undertaken and success stories of disaster prevention, mitigation and management to help and support vulnerable states and nations . Adopting Holistic approach towards disaster mitigation and management and working with nature, restoring the damage caused to environment, ecology and bio-diversity will remain critical, crucial and valuable to minimize disasters
Forecasting and communication key elements for low-cost fluvial flooding earl...IJECEIAES
Fluvial flooding occurs when a river overspills its banks due to excessive rainfall, and it is the most common flood event. In urban areas, the increment of urbanization makes communities more susceptible to fluvial flooding since the excess of impervious surfaces reduced the natural permeable areas. As flood prevention strategies, early warning systems (EWS) are used to reduce damage and protect people, but key elements need to be selected. This manuscript proposes the monitoring instruments, communication protocols, and media to forecast and disseminate EWS alerts efficiently during fluvial floods in urban areas. First, we conducted a systematic review of different EWS architectures for fluvial floods in urban areas and identified that not all projects monitor the most important variables related to the formation of fluvial floods and most use communication protocols with high-energy consumption. ZigBee and LoRaWAN are the communication protocols with lower power consumption from the review, and to determine which technology has better performance in urban areas, two wireless sensor networks were deployed and simulated in two urban areas susceptible to fluvial floods using Radio Mobile software. The results showed that although Zigbee technology has better-received signal strength, the difference with LoRAWAN is lower than 2dBm, but LoRaWAN has a better signal-to-noise ratio, power consumption, coverage, and deployment cost.
Intelligent water conservation and management techniques need to be adopted by the industry such that water can be optimally utilized. Now as per the recent forecasts and frequent occurrence of extreme events, the necessity of such management has become more significant. Based on this need, some start-up businesses can be established which can help to achieve the water conservation goals. Five such ideas are discussed in this presentation.
NAP Training Viet Nam - Vulnerability and Adapting to Climate ChangeUNDP Climate
This two-day workshop supported the Government of Viet Nam in building the necessary capacity to advance its National Adaptation Plan (NAP) process. The workshop closely focused on building National Adaptation Plans in the agricultural sector through multi-stakeholder collaboration, and increased knowledge and capacity on a number of topics including: prioritization of adaptation options, cost-benefit analysis, overview of the broad-based nature of climate change adaption impacts, analysis of challenges, and creation of an open discussion with key stakeholders on defining a road-map for the NAP process. The workshop was delivered using discussions and case studies to enhance interactive learning for participants, with supporting presentations by GiZ and SNV.
Information and Communication Technology in Water Management: A Case StudyBRNSS Publication Hub
Smartphones, smart watches, smart cars, and smart grids - everything is smart nowadays, even water. Living in the smart city, Bhubaneswar, I have never encountered a lack of fresh water. However, the global picture looks quite different. Water scarcity affects every continent. According to a UN investigation, around 1.2 billion people live in areas of physical water scarcity. A further 1.6 billion people face economic water shortages (where countries lack the necessary infrastructure to take water from rivers and aquifers). There is enough fresh water on the planet for 7 billion people but it is distributed unevenly and too much of it is wasted or polluted. This study will find a solution of this problem.
Disaster Management Flooding and Landslidesonika patel
Management of disaster on the basis of Guidelines framework, of landslide & Flooding with the respective case study and flood forecasting and management
5th World Congress on Diaster Management(WCDM-2020) shall be organised jointly by the Government of National Territory (GNCT) of Delhi, Indian Institute of Technology (IIT) Delhi and Disaster Management Initiatives and Convergence Society (DMICS) Hyderabad, in collaboration with National Disaster Management Authority (NDMA) and National Institute of Disaster Management (NIDM)
In order to receive assistance from The Asian Development Bank, in case of damaged infrastructure caused by a disaster, the government should consider the need to improve their capacity to manage future disaster risks. Almost every disaster in Cambodia is flood related. This document focuses more specifically on flood risk management. However these principles are also applicable to all disasters. This document covers the approach of disaster risk management and flood management in Cambodia, past and ongoing activities, the institutional framework and it ends with a few recommendations.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.