scholarly journals Simple stochastic cellular automaton model for starved beds and implications about formation of sand topographic features in terms of sand flux

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Noritaka Endo
Keyword(s):  
Cellular Automaton ◽  
Cellular Automaton Model ◽  
Topographic Features ◽  
Sand Flux ◽  
Stochastic Cellular Automaton

RIPPLES VERSUS GIANT DUNES IN A SALTATION-AVALANCHE MODEL

1999 ◽  
Vol 10 (06) ◽  
pp. 1071-1076 ◽  
Author(s):  
NICOLAS VANDEWALLE ◽  
SERGE GALAM
Keyword(s):  
Cellular Automaton ◽  
Cellular Automaton Model ◽  
Ripple Formation ◽  
Stochastic Cellular Automaton

A simple stochastic cellular automaton model is proposed for ripples and dunes formation. Saltation and avalanches are the unique ingredients of the model. The dynamics of ripple formation is found to be logarithmic in time while the ripple merging as well as the dune growth is faster and occurs by bursts. The ripple state turns out to be metastable.

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