5616 x 3744 px | 47,5 x 31,7 cm | 18,7 x 12,5 inches | 300dpi
Data acquisizione:
28 giugno 2008
Ubicazione:
Death Valley National Park, California and Nevada, United States of America.
Altre informazioni:
Sand dunes, Death Valley, California, USA. JMH5353 Winds blowing through Death Valley are slowed here by the changing shape of the valley and towering Tucki Mountain. The weakened winds cannot carry their cargo of sand and farther. Quartz grains, scoured from the surrounding mountains, compose the deposited sands. While winds constantly shape and reshape individual sand dunes, the dune field itself does not move. In Death Valley, sand dunes are less common than you might expect. Five widely separated dune fields exist in this national park – yet they account for only a fraction of the total acreage. Sand is scattered throughout the desert, but in only a few places it is gathered by the interaction of wind and mountains to form dunes. (from Death Valley National Park notice board)
Questa immagine non può ottenere una licenza per l’uso personale (ad es. stampe personali).
