هستی شناسی های علمی و فنی: علوم زمین: تپه شنی

تپه شنی

تپه یا پشته‏ای کوتاه از مواد سست معمولاً ماسه‏ای که باد آنها را از جایی به جای دیگر حرکت می‏دهد و مجدداً به شکل تپه بر روی هم انباشته می‏کند

A dune is a hill of sand built by eolian processes. Dunes are subject to different forms and sizes based on their interaction with the wind. Most kinds of dune are longer on the windward side where the sand is pushed up the dune, and a shorter slip face in the lee of the wind. The valley or trough between dunes is called a slack. A dune field is an area covered by extensive sand dunes. Large dune fields are known as ergs.

http://www.irandoc.acir/onto/irandoc/SWEETT16200

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علوم زمین