ice barrier


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ice barrier

[′īs ‚bar·ē·ər]
(hydrology)
The periphery of the Antarctic ice sheet; or used generally for any ice dam.
References in periodicals archive ?
Over the following weeks, both expeditions laid depots for their southern journeys--Scott following Shackleton's route, Amundsen pioneering his own, a direct course for the pole across the Ice Barrier.
Basically the position of the ice dam is recognized from two observations: the presence of one or more major terminal moraines deposited when there was a hiatus during the period of ice recession, and the disappearance (or weakening) of beaches as the ice barrier is approached (so that beaches are found only on the sides of the basin where the ice barrier was absent).
Unable to drain off because of the ice barrier, the water exerts so much pressure for so long, against and beneath the obstruction, that eventually it demolishes the ice dike completely.
These can take various forms, such as finding a source of fire, to melting an ice barrier, or watering a seed so it can grow to fill a gap left by a missing platform.
During the return trip across the polar plateau, along the Beardsmore Glacier and onwards across the Great Ice Barrier, Scott and his party died from cold and starvation.
Among its achievements were the first ascent onto the Polar Plateau and a `farthest south' of 82[degrees] 28'S over the Great Ice Barrier (now the Ross Ice Shelf).
Warmer ocean water has thawed the base of frozen bluffs and destroyed natural ice barriers protecting the coast, causing large earth chunks to fall each summer, the scientists said.
056-kg) snow stop roof bracket that supports snow and ice barriers installed on steel-covered roofs;
Initially, most researchers assumed that humans moved south only after the opening of the continental ice barriers at approximately 12,000 BP.