deflation: entrainment of lose material and sediment, attrition: sediment collides with each other and wears away, abrasion: windblown particles impact surfaces removing partciles
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arid aeolian wind tranporation
suspension: fine sediment carried in air, saltation: sand grains move in hops along ground, surface creep: sediment pushed or rolled along
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arid aeolian wind deposition
inputs exceed out puts, obstacle, wind speed changes, load deposited forming dunes, move in the direction of the prevailing wind: barchan longitudinal transverse star parabolic
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arid characteristics
little ppt, sparse veg, few clouds, high evap rates, high temp ranges, hyper >100mm, arid 100-300mm, semi 300-600mm
insolation: moisture high temp ranges outer layers expand more, eventually break off exfoliation, salt crystallisation: salt crystallises out of solution grows in size forcing rocks apart, freeze thaw: water freezes expand 9% many cycles breaks apart
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Other cards in this set
Card 2
Front
suspension: fine sediment carried in air, saltation: sand grains move in hops along ground, surface creep: sediment pushed or rolled along
Back
arid aeolian wind tranporation
Card 3
Front
inputs exceed out puts, obstacle, wind speed changes, load deposited forming dunes, move in the direction of the prevailing wind: barchan longitudinal transverse star parabolic
Back
Card 4
Front
little ppt, sparse veg, few clouds, high evap rates, high temp ranges, hyper >100mm, arid 100-300mm, semi 300-600mm
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