basal+ice

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• Ice sheet dynamics — describe the motion within large bodies of ice, such those currently on Greenland and Antarctica. Ice motion is dominated by the movement of glaciers, whose gravity driven activity is controlled by two main variable factors: the temperature and… …   Wikipedia

• Basal sliding — is the act of a glacier sliding over the bed before it due to meltwater under the ice acting as a lubricant. This movement very much depends on the temperature of the area, the slope of the glacier, the bed s sediment size, the amount of… …   Wikipedia

• Ice crystals — small crystalline form of ice including hexagonal columns, hexagonal plates, dendritic crystals, and diamond dust.Temperature and water vapor humidity determine crystalline forms. Ice crystals are responsible for various atmospheric optics… …   Wikipedia

• basal slipping —   during summer time in warmer glacial areas, limited melting lubricates the base of the glacier allowing it to move more freely. Movement increases pressure, raising temperature and allows further melting as the ice reaches its pressure melting… …   Geography glossary

• Frazil ice — is a collection of loose, randomly oriented needle shaped ice crystals in water. It resembles slush and has the appearance of being slightly oily when seen on the surface of water. It sporadically forms in open, turbulent, supercooled water,… …   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

• Erebus Ice Tongue — (1901 1904) named and charted the ice tongue. [ [http://aadc maps.aad.gov.au/aadc/gaz/display name.cfm?gaz id=124864 Australian Antarctic Data Centre] , Antarctic Gazetteer Name Details.] Erebus Ice Tongue is about 10 meters high and is centered… …   Wikipedia

• European Project for Ice Coring in Antarctica — The European Project for Ice Coring in Antarctica (EPICA) is a multinational European project for deep ice core drilling in Antarctica. Its main objective is to obtain full documentation of the climatic and atmospheric record archived in… …   Wikipedia

• North Greenland Ice Core Project — Delta O 18 record from the NGRIP core The drilling site of the North Greenland Ice Core Project (NGRIP or NorthGRIP) is near the center of Greenland (75.1 N, 42.32 W, 2917 m, ice thickness 3085). Drilling began in 1999 and was completed at… …   Wikipedia

• Overdeepening — Sognefjord in Norway, the second longest fjord in the world, shows characteristic overdeepening. Overdeepening is a characteristic of basins and valleys eroded by glaciers. An overdeepened valley profile is often eroded to depths which are… …   Wikipedia

• glacial landform — ▪ geology Introduction  any product of flowing ice and meltwater. Such landforms are being produced today in glaciated areas, such as Greenland, Antarctica, and many of the world s higher mountain ranges. In addition, large expansions of present… …   Universalium