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MASTER OF ARTS (GEOGRAPHY) : Desert Landforms Erosional and Depositional

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School
University of Delhi - DU
Department
Geography
Course
MASTER OF ARTS (GEOGRAPHY)
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Document Summary

Desert: a desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to the processes of denudation. About one-third of the land surface of the world is arid or semi-arid: this includes much of the polar regions, where little precipitation occurs, and which are sometimes called polar deserts or cold deserts . It is carried out in the following ways: deflation. Desert landforms by wind erosion: rock pedestals/mushroom rocks, formed by the sandblasting effect of winds against any projecting rock masses. It is a flat, table-like landmass with a very resistant horizontal top layer and very steep sides. Yardangs are vertical bands: rocks are aligned in the direction of prevailing winds, winds abrasion excavates the bands of softer rocks into long, narrow corridors, separating the steep-sided over handing ridges of hard rock called yardangs.

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Related Questions

Match the description to the appropriate biome.

Desert                                                      1. Permafrost is a characteristic.

Chaparral                                                  2. Largest terrestrial biome on Earth.

Tropical rain forest                                     3. Vertical layering is most pronounced.

Coniferous Forest                                       4. Dominated by shrubs in midlatitude coastal regions.

Tundra                                                      5. Seasonal and daily temperature variability with very low precipitation.

 

The most common type at mirage is an illusion that light from faraway objects is reflected by a pool of water that is not really there. Mirages are generally observed in deserts when there is a hot layer of are near the ground. Given that the reflective index of air is lower for air at higher temperatures, how mirages can be formed?

A uniform internal energy generation occurs in a plane wall with a thickness of and a constant thermal conductivity of . For these conditions, the temperature distribution has the form ? The surface at has a temperature and . The surface at  is well insulated. For one-dimensional, steady-state conduction (a) calculate the volumetric energy generation rate. (b) determine the coefficients a, b, and c by applying boundary conditions to the prescribed temperature distribution.