pages, 6.18 MB
pages, 6.18 MB

Systems and Processes:

  • Sources of energy in hot desert environments: insolation, winds, runoff
  • Sediment sources, cells and budgets
  • Geomorphic processes: weathering, mass movement, erosion, transportation, deposition
  • Origin and development of landforms in mid and low latitude deserts: aeolian - deflation hollows, desert pavements, ventifacts, yardangs, zeugans, barchans and sief dunes; water - wadis, bahadas, pediments, playas and inselbergs
  • Distinctively arid geomorphic processes: weathering (thermal fracture, exfoliation, chemical weathering, block + granular disintegration
  • The role of wind: erosion (deflation + abrasion), transportation, suspension, saltation, surface creep, deposition
  • Sources of water: exogenous, endoreic + ephemeral, the episodic role of water, sheet flooding and channel flash flooding

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