Bering Glacier and Bagley Ice Valley surge 2011: crevasse classification as an approach to map deformation stages and surge progression
نویسندگان
چکیده
منابع مشابه
Bering Glacier surge 2011: analysis of laser altimeter data
The Bering Glacier–Bagley Icefield system in Alaska is currently surging (2011). Large-scale elevation changes and small-scale elevation-change characteristics are investigated to understand surge progression, especially mass transport from the pre-surge reservoir area to the receiving area and propagation of the kinematic surge wave as manifested in heavy crevassing characteristic of rapid, br...
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The hundredfold speedup in glacier motion in a surge of the kind the kind that took place in Variegated Glacier in 1982-1983 is caused by the buildup of high water pressure in the basal passageway system, which is made possible by a fundamental and pervasive change in the geometry and water-transport characteristics of this system. The behavior of the glacier in surge has many remarkable featur...
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Aerial videography in combination with GPS were used to monitor the active surge of Alaska's Bering Glacier. The large aerial extent of the study area and the unpredictable weather in coastal Alaska required innovative techniques to be used in order to successfully monitor the surge environment. A portable aerial videographic system which mounts in a variety of small aircraft was developed to a...
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متن کاملDerivation of deformation characteristics in fast-moving glaciers
Crevasse patterns are the writings in a glacier’s history book – the movement, strain and deformation frozen in ice. Therefore by analysis of crevasse patterns we can learn about the ice-dynamic processes which the glacier has experienced. Direct measurement of ice movement and deformation is time-consuming and costly, in particular for large glaciers; typically, observations are lacking when s...
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ژورنال
عنوان ژورنال: Annals of Glaciology
سال: 2013
ISSN: 0260-3055,1727-5644
DOI: 10.3189/2013aog63a338