442
Climatic Geomorphology
Figure 18.14. Simple linear dunes partly covered by vegetation, Experimental station ofNizzana, Negev
Desert, Israel.
C
I
III
~
_
_
A
/
g
- ',,....'_ ..-"
g__.__
D
_
_
_
Figure 18.15. A model of the development of linear dunes (seifs) from barchans; "s" refers to strong
winds and "g" to gentle winds (Bagnold, 1941).