Sand dunes blown and shaped by the wind on an outwash plain below the Russell Glacier near Kangerlussuaq in Greenland, Polar Regions

greenland environment landscape glaciation russell glacier river outwash plain plain sediment erosion glacial deposit sand sandy sand dune form shape aeolian wind blown wind erosion day outdoors landscapes scenics nature natural world topography sand dunes arid landscapes polar regions physical geography surface processes geology kangerlussuaq horizontal