Shared Flashcard Set

Details

Introducing Physical Geography 4th edition. Alan strahler...
WIND
14
Geography
Undergraduate 1
05/12/2009

Additional Geography Flashcards

 


 

Cards

Term
Abrasion process
Definition
Process of erosion by particles being carried in streams or by larger rolling rocks
Term
Deflation process
Definition
Process of lifting and transporting loose particles by turbulent suspension in wind from dry ground surfaces
Term
Desert Pavement
Definition
Surface layer of closely fitted pebbles or coarse sand from which finer particles have been removed
Term
Dust storm
Definition
Heavy concentration of fine dust in a turbulent air mass, often associated with a cold front and in urban areas, much bigger than sand storms
Term
Sand Storm
Definition
Heavy concentration of sand in turbulent air mass, often in deserts
Term
Saltation
Definition
Leaping, impacting and rebounding of sand grains transported over a sand or pebble surface by wind
Term
Barchan dunes
Definition
Sand dune of crescentic base outline with a sharp crest and a steep lee slip face, with crescent point pointing downward
Term
Transverse dunes
Definition
Field of wavelike sand dunes with crests running at right angles to the direction of the prevailing wind
Term
Parabolic dunes
Definition
Isolated low sand dunes of parabolic outline, with points directed into the prevailing wind
Term
Coastal blowout dubes
Definition
High sand dune of the parabolic dunes class formed adjacent to a beach, usually with a deep deflation hollow enclosed within the dune ridge
Term
Hairpin dunes
Definition
(Parabolic Dunes) Isolated low sand dunes of parabolic outline
Term
Longitudinal dunes:
Definition
Class of sand dunes in which the dune ridges are oriented parallel with the prevailing wind
Term
Star dunes
Definition
Large, isolated sand dune with radial ridges culminating in a peaked summit
Term
Loess
Definition
Accumulation of yellowish to buff-colored, fine grained sediment, largely of silt grade, upon surfaces after transport in the air in turbulent suspension
Supporting users have an ad free experience!