processes by which snow and ice are lost from the surface of a glacier

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• Glacier — This article is about the geological formation. For other uses, see Glacier (disambiguation). The Baltoro Glacier in the Karakoram, Kashmir, Northern Pakistan. At 62 kilometres (39 mi) in length, it is one of the longest alpine glaciers on… …   Wikipedia

• ablation — [1] Any one of the processes by which snow and ice are lost from a glacier, mainly by melting and evaporation (sublimation). [2] Removal of surface layers of a meteorite and tektites during flight …   Dictionary of automotive terms

• glacier — glaciered, adj. /glay sheuhr/, n. an extended mass of ice formed from snow falling and accumulating over the years and moving very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of… …   Universalium

• Glacier mass balance — See also Retreat of glaciers since 1850 Crucial to the survival of a glacier is its mass balance, the difference between accumulation and ablation (melting and sublimation). Climate change may cause variations in both temperature and snowfall,… …   Wikipedia

• Ice core — An ice core is a core sample from the accumulation of snow and ice over many years that have re crystallized and have trapped air bubbles from previous time periods. The composition of these ice cores, especially the presence of hydrogen and… …   Wikipedia

• Greenland ice sheet — The Greenland Ice Sheet is a vast body of ice covering 1.71 million km², roughly 80% of the surface of Greenland. It is the second largest ice body in the world, after the Antarctic Ice Sheet. The ice sheet is almost 2,400 kilometers long in a… …   Wikipedia

• Anthropology and Archaeology — ▪ 2009 Introduction Anthropology       Among the key developments in 2008 in the field of physical anthropology was the discovery by a large interdisciplinary team of Spanish and American scientists in northern Spain of a partial mandible (lower… …   Universalium

• Challenger Glacier — Type cirque/tidewater Location Heard Island, Territory of Heard Island and McDonald Islands, Australia Coordinates …   Wikipedia

• Compton Glacier — Type cirque/tidewater Location Heard Island, Territory of Heard Island and McDonald Islands, Australia Coordinates …   Wikipedia

• Deacock Glacier — Type tidewater Location Heard Island, Territory of Heard Island and McDonald Islands, Australia Coordinates …   Wikipedia

• Downes Glacier — Type tidewater Location Heard Island, Territory of Heard Island and McDonald Islands, Australia Coordinates …   Wikipedia