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Breton, C., Lancaster, N. and Nickling, W.G. 2008. Magnitude and frequency of grain flows on a desert sand dune. Geomorphology, 95(3–4): 518–523


Description:

Magnitude and frequency of grain flows on a desert sand dune.

Summary / Notes:

Preliminary studies of the magnitude and frequency of lee side avalanches (grain flows) on a Namib crescentic dune show that the frequency of grain flows for a given segment of the lee face is dependent on the wind speed and sand transport rate for the period preceding their initiation; and the magnitude of the flows as described by their area is inversely proportional to the interval between flows and thus wind speed and sand transport rates. These studies indicate the potential of using a simple digital video camera technique to document the magnitude, frequency and geometry of grain flows on desert sand dunes. Keywords: Aeolian processes, Sand dunes, Grain flow, Namib Desert.

Year: 2008

Type: Journal Article

URL: http://www.sciencedirect.com/science/article/pii/S0169555X07003534


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