aberdeenshire aeolian processes algodones dunes antidune arcachon ashdod sand dune atacama desert australia avalanche badain jaran desert bamburgh dunes barchan beach biodiversity action plan brazil brisbane california canada canal climax community colorado county down crymlyn burrows death valley national park desert desertification dorset dunhuang dust storm earth science ecological succession egypt endangered species england erg chebbi estuary footbridge geography gobi desert gobi gurvansaikhan national park gorse gower peninsula grand erg oriental gravel great britain great sand dunes national park and preserve grey dune guadalupe-nipomo dunes gwynedd heather hill humus ice age ilocos norte india indo-european languages iran israel italy japan kelso dunes lake lake michigan lazio list of extraterrestrial dune fields loess masseira michigan mojave desert monahans sandhills state park mongolia moreton bay morfa harlech sand dunes morocco nasa earth observatory namib desert namibia netherlands new zealand nitrogen norfolk north bend north wales northern ireland northumberland oregon oregon dunes national recreation area overpopulation oxwich bay ph permafrost philippines pioneer species privacy rajasthan rare species rig-e jenn river sand sandhill sands of forvie sandstone scotland sea seaweed sechura desert sleeping bear dunes national lakeshore stoma strand plain studland swansea the great dune of pyla the physics of blown sand tottori prefecture tottori sand dunes transpiration tundra underwater united kingdom united nations environment programme united states wales water table wavelength western sahara white sands national monument wikimedia commons wind winterton dunes yellow dune ynyslas sand dunes ythan estuary zion national park