Usuario:Rosarinagazo/Retroalimentación
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La retroalimentación de albedo del hielo (o de la nieve) es una realimentación positiva del proceso climático donde se produce un cambio en el área de tierra cubierta de nieve, campos de hielo, glaciares o banquisas alterando el albedo.
This change in albedo acts to reinforce the initial alteration in ice area. Cooling tends to increase ice cover and hence the albedo, reducing the amount of solar energy absorbed and leading to more cooling. Conversely, warming tends to decrease ice cover and hence the albedo, increasing the amount of solar energy absorbed, leading to more warming.[1]
The effect also applies on the small scale to snow-covered surfaces. A small amount of snow melt exposes darker ground which absorbs more radiation, leading to more snowmelt.
The effect has mostly been discussed in terms of the recent trend of declining Arctic sea ice.
Internal feedback processes may also potentially occur, as land ice melts and causes eustatic sea level rise, and also potentially induces earthquakes as a result of isostatic rebound, which further acts to disrupt glaciers, ice shelves, etc.