desert windswept sand dunes patterns

algodones arabia arizona arroyo atacama blow blowing border climate curve curves curving dehydration desert desertion desolate dry dune dunes ergs evapotranspiration flood fluvial freedom gobi grain great gypsum habitat hamada hills hot isolated juxtaposition kalahari landscape laterite libya lonely lost mojave move movement moving natural open patagonia phoenix precipitation region sahara sand sensual shadow smooth stark sweat sweeping syria texture thar trek tucson urban wadi water wind windswept yuma windblown windy patterns rewild rewilding