Aeolian Geomorphology 0.0 / 5 ? Alldude A2/A-levelAQA Created by: tastathamCreated on: 27-04-15 11:55 Air circulation is; Thermally driven 1 of 18 Air at the equator is what pressure? Low pressure 2 of 18 The Coriolis effect deflects air to the ... in the Northern Hemisphere Right 3 of 18 The Coriolis effect deflects air to the ... in the Southern Hemisphere Left 4 of 18 Momentum – from rotation is greatest at the ... because it is the furthest point from axis of Earth’s rotation. equator 5 of 18 What is the region where; airflow above surface is influenced by the ground’s friction Boundary Layer 6 of 18 Airflow is always what type of Velocity Profile? Turbulent 7 of 18 What Re is turbulent flow? 2000 8 of 18 What is the velocity profile The change in wind speed with height 9 of 18 What type of forces encourage deformation inertial forces 10 of 18 What type of sediment dominates Aeolian bedforms Quartz 11 of 18 What is the diameter size of sand? 63 to 2000 um 12 of 18 What are the key controls on sand transport rates? Sand texture, moisture content, vegetation and slope 13 of 18 Creep is the; rolling of large grains on the surface, encouraged by saltation 14 of 18 Reptation is the; splash of grains, from saltation impact 15 of 18 What is the full atmospheric BL? 1-2km 16 of 18 What is the near-surface BL? 10s of metres 17 of 18 What are the 4 controls on q? wind regime, grain size, beach width and beach slope 18 of 18
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