Sign up now
to enroll in courses, follow best educators, interact with the community and track your progress.
Download
Wind Landforms: Geography for UPSC CSE/IAS Preparation
2,626 plays

More
Through this chapter, venkatesh talks about the how wind creates landforms in desert and arid areas. It discusses about both erosional and depositional landforms formed by wind.

Venkatesh Emani
Loves teaching...Faculty of Geography and economy for competitive exams

U
Unacademy user
Durgesh Makwan
a year ago
Dnyaneshwar... thank you so much.. पुढे आणखी lessons आहेत याचा फायदा तुम्हाला परीक्षेसाठी नक्की होईल....
All types are not covered
very short and point to point information thank you sir
semi lunar send doons are known as?
Karan Tripathi
2 years ago
crescent dunes
Zuegen, Dreikanter, Demoiselle? upsc have asked about these wind erosions.
Karan Tripathi
2 years ago
All these are there in GC Leong book
Nice one! Pls make a complete video series on Atlas, both physical and political. Someone has to hold the baton, let he be you :)
  1. Course: Geomorphology Presented by Venkatesh Emani


  2. About me M. Sc geography from University of Madras # Threeyears ofexperience in teaching Geography and Economy for civil services Interests: Love teaching, watching cricket and some long drives . Follow me on Unacademy: https://unacademy.in/user/venkateshemani


  3. Wind landforms Wind is the primary geomorphic agent in the desert and arid climates of the world. Sometimes ephermal streams also become agent of erosion Wind erosion is assisted by mechanical weathering Wind erosion takes place above the ground and hence erlodle acon nicis rhake ahove the ground and hence velocity has a crucial role


  4. Erosional landforms Deflation basins are circular shaped depressions where loose sand particles are eroded by the winds Rocks or bare soil blow out by persistent movement of wind cuurents These are very much extensive . Desert pavements: Isolated patches of hard rocky strata Formed due to continuous erosion of loose sandy particles


  5. Erosional landforms shrom ocks: Rocks having broad . Mushroom rocks: Rocks having broad upper part and narrow base. Formed due to abrasive Active abrasion is limited to six feet from the ground Resistent rocks are polished beautifully. works of wind


  6. Erosional landforms . Yardangs :Wind abrasion concentrates on weak strata; leaving harder material Formed due to differential erosion shutterstsck www.shutterstock.com 168207146


  7. Depositional landfornm Depositional landforms Sandunes: Most striking feature of deserts - Heaps or mounds of sand made up of wind blown sand Crescent shaped dunes are called barchans Mobility of sand dunes is the biggest problem in deserts Loess plains : extensive plains formed due to accumulation ofwind- blown silt Extensive loess deposits are found in northern China Loess often develops into extremely fertile agricultural soil