Water in a desert Flashcards
1
Q
Exogenous
A
Originates outside of the desert
Maintains flow all year
2
Q
Example of exogenous river
A
Nile
Indus
3
Q
Endoreic
A
Originates near the desert
Ends in lakes and swamps
4
Q
Example of endoreic river
A
Jordan River - leading to Red Sea
5
Q
Ephemeral river
A
Sporadic river that occurs following rain
Can last hours or days
6
Q
Example of ephemeral (one thats almost yearly)
A
Ugab in Namibia
7
Q
Sheet flood
A
Shallow flood
Causes sheet erosion
8
Q
Flash flood
A
Large flood following periods of heavy rain
Usually less than 6 hours duration
9
Q
Example of a flash flood
A
Rajasthan 2006
10
Q
Aridity Index =
A
annual precipitation / annual potential evapotranspiration
