Kiesdünen
Kiesdünen, also known as sand dunes, are landforms created by the accumulation of sand particles, typically in deserts, beaches, or dune fields. They are formed by wind action, which transports sand grains and deposits them in areas where the wind speed decreases, such as behind obstacles or in sheltered valleys. Sand dunes can vary in size and shape, ranging from small ripples to large, complex dune fields. They are characterized by their dynamic nature, with sand constantly moving and shifting due to wind patterns and other environmental factors.
Sand dunes play a crucial role in various ecosystems, providing habitats for numerous plant and animal species.
The study of sand dunes, known as aeolian geomorphology, involves understanding their formation, movement, and evolution.