This chapter discusses landforms and geomorphic processes in arid regions. It notes that while running water is more effective than wind at shaping the landscape, wind still plays an important role in desert environments where vegetation is sparse. Some key landforms created by fluvial processes include arroyos, alluvial fans, and playas in interior basins. Eolian processes form dunes, yardangs, and loess deposits. Deserts also exhibit features related to tectonic uplift and erosion over long time periods, like inselbergs and pediments. Together, the interplay of fluvial, eolian and tectonic forces sculpt diverse landscapes in the world's arid regions.
This is my second presentation. Me and my friend created this presentation. This presentation tropic is Indian shoreline classification. So all people watch this tropic and comment my fault for this tropic. And comments for new tropic name so i am help for help for any geography subject related tropic. THANK YOU
Gravity pulls the rocks, soils and debris on a downward slope, naturally, without any chemical change. This downward movement is called as mass -movement or mass-wasting.
Landslides, mudflows and rockfalls are all belonging to this category of geomorphic processes.
Mass-wasting may lead to severe natural disasters by affecting the life and building structures in different places. Understanding of mass-wasting will certainly help to mitigate the impacts of these hazards and plan the development activities.
Geological work of the wind, deflation, wind abrasion, desert pavement,
ventifacts, desert dunes and sand sheets, sand seas or ergs, loess, coastal dunes, sand hills and
sabkhas, loess and evolution of deserts: Wind action and desert landscape
This topic is all about Glaciation. This includes; the causes of glaciation, the origin of glaciers, formation, primary types, movement, the erosional, transportation and depositional mechanisms. This also includes the common landforms brought by glaciers.
Every continent or island is bordered by a long or short coastline. Coastline is the line separating the land and sea. Coastal zones are the transition zones between terrestrial and marine habitat. They form an interface between land and oceanic natural processes. Coastal areas also are varied in their topography, climate and vegetation. Some are sandy beaches, rocky shores, with or without tidal inlets. The climate of a coast are controlled by the land and sea breezes and the humidity controlled by marine water. Waves are powerful tools for constructive and destructive activities. Hence. the geomorphology of beach, materials and processes are always not constant due to the impact of everlasting action of tides, waves and currents.
This is my second presentation. Me and my friend created this presentation. This presentation tropic is Indian shoreline classification. So all people watch this tropic and comment my fault for this tropic. And comments for new tropic name so i am help for help for any geography subject related tropic. THANK YOU
Gravity pulls the rocks, soils and debris on a downward slope, naturally, without any chemical change. This downward movement is called as mass -movement or mass-wasting.
Landslides, mudflows and rockfalls are all belonging to this category of geomorphic processes.
Mass-wasting may lead to severe natural disasters by affecting the life and building structures in different places. Understanding of mass-wasting will certainly help to mitigate the impacts of these hazards and plan the development activities.
Geological work of the wind, deflation, wind abrasion, desert pavement,
ventifacts, desert dunes and sand sheets, sand seas or ergs, loess, coastal dunes, sand hills and
sabkhas, loess and evolution of deserts: Wind action and desert landscape
This topic is all about Glaciation. This includes; the causes of glaciation, the origin of glaciers, formation, primary types, movement, the erosional, transportation and depositional mechanisms. This also includes the common landforms brought by glaciers.
Every continent or island is bordered by a long or short coastline. Coastline is the line separating the land and sea. Coastal zones are the transition zones between terrestrial and marine habitat. They form an interface between land and oceanic natural processes. Coastal areas also are varied in their topography, climate and vegetation. Some are sandy beaches, rocky shores, with or without tidal inlets. The climate of a coast are controlled by the land and sea breezes and the humidity controlled by marine water. Waves are powerful tools for constructive and destructive activities. Hence. the geomorphology of beach, materials and processes are always not constant due to the impact of everlasting action of tides, waves and currents.
Revision on the key features and formation of a range of desert landforms. Designed to meet the requirements of the AQA A-level geography specification, hot deserts topic in GEOG1.
Fighting wind erosion. one aspect of the combat against desertification. Les ...csfd
Mainguet M. & Dumay F., 2011. Fighting wind erosion. one aspect of the combat against desertification. Les dossiers thématiques du CSFD. N°3. May 2011. CSFD/Agropolis International, Montpellier, France. 44 pp. - Wind erosion—alone or combined with other physical or socioeconomic causes—is a mechanism that may induce desertification, i.e. severe or irreversible degradation of water and soil resources. Now that this phenomenon is better understood, the model of the 1970s based on three distinct stages (causes, mechanisms, consequences) has been discarded, in view of the many feedbacks and insidious links generated by wind erosion. Timely detection of wind erosion onset thresholds with remote sensing tools (satellite images and aerial photographs), and spatial delimitation and positioning of the phenomena observed are essential to be able to efficiently combat the damaging effects of wind erosion. No field operations can be effective without prior knowledge of wind erosion mechanisms at the land-atmosphere interface.
Deserts are landforms of sand and sediments. They are the cradles of centrifugal eolian forces. Among all the terrestrial ecosystems, deserts are typical landforms due to their unique ecological conditions.
Desert and near-desert areas cover nearly one-third of the land surface of the globe . Deserts alone covers about one-seventh of the land surface.
1. Chapter 18: Arid Region Landforms and Eolian Processes Physical Geography Ninth Edition Robert E. Gabler James. F. Petersen L. Michael Trapasso Dorothy Sack
