Niveo-aeolian deposition
Niveo-aeolian deposition refers to the process by which snow and ice are transported and deposited by wind action. This phenomenon is significant in polar and alpine regions where strong winds and cold temperatures prevail.
Mechanism[edit | edit source]
Niveo-aeolian deposition occurs when wind lifts and transports snow particles from one location to another. The process is influenced by several factors, including wind speed, snow particle size, and the surface roughness of the terrain. When the wind velocity decreases, the snow particles settle and accumulate, forming various snow structures such as snow dunes, snow drifts, and sastrugi.
Factors Influencing Niveo-aeolian Deposition[edit | edit source]
Several factors affect the efficiency and extent of niveo-aeolian deposition:
- Wind Speed: Higher wind speeds can transport larger quantities of snow over greater distances.
- Snow Particle Size: Finer snow particles are more easily lifted and carried by the wind compared to larger, heavier particles.
- Surface Roughness: Rough surfaces can trap snow particles more effectively, leading to greater accumulation.
- Temperature: Colder temperatures can affect the bonding between snow particles, influencing their transport and deposition.
Geographical Occurrence[edit | edit source]
Niveo-aeolian deposition is most commonly observed in:
- Polar regions such as Antarctica and the Arctic.
- Alpine regions where high altitudes and cold temperatures prevail.
Impact on Environment[edit | edit source]
Niveo-aeolian deposition plays a crucial role in shaping the landscape of polar and alpine regions. It contributes to the formation of snow features and can influence the distribution of snow cover, which in turn affects local climate and ecosystems.
Related Concepts[edit | edit source]
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References[edit | edit source]
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Contributors: Prab R. Tumpati, MD