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Harrison Ice Ridge
Harrison Ice Ridge () is an ice ridge between Echelmeyer Ice Stream and MacAyeal Ice Stream on the Shirase Coast of Marie Byrd Land, Antarctica. It was named by the Advisory Committee on Antarctic Names after William D. Harrison of the Geophysics Institute at the University of Alaska, Fairbanks, a United States Antarctic Program investigator of ice flow dynamics in the margin of the nearby Whillans Ice Stream, 1992–93 and 1993–94, and at Siple Dome, 2001–02. References Ridges of Marie Byrd Land {{MarieByrdLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Ridge
An ice dune, also called an ice ridge or an ice foot, is a formation of ice that accumulates on the shores of many arctic beaches and is also common along the shores of the Great Lakes during the winter.French 2007, p. 273. Ice dunes are not to be confused with ice shoves, which accumulate on bodies of water then push their way on shore, carrying sediment with them and deforming the shoreline. Cause An ice dune is produced by ice washing ashore, snowfall, and the gradual freezing of wave spray that accumulates on to the shore. They form when the air temperature is below freezing and the water temperature is near freezing. Ice dunes are commonly at least tall, but the dune's size depends on the beach and the weather. The tidal range, the ''storminess'' of the water and the topography of the beach all can affect the size of the dunes.French 2007 p. 276. The dunes will also stop forming if the body of the water they border freezes over, which often happens on Lake Erie. Ice dunes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
