ICE FLOW BEHAVIOR AT DYE 3,GREENLAND
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概要
- 論文の詳細を見る
To understand the flow behavior of large polar ice masses, mechanical property studies have been conducted on deep ice core samples obtained at Dye 3,Greenland during the GISP field operations from 1979 to 1981. A strain rate enhancement factor profile obtained by making uniaxial compression tests shows (1) much higher enhancement factor values for Wisconsin age ice compared with Holocene ice and (2) characteristic changes in the enhancement factor value for the Wisconsin ice depth zone. These results were incorporated to calculate both horizontal and vertical flow velocity profiles of ice which are in good agreement with the results of borehole tilting measurements and computer models of flow dynamics. The finding of depth changes in enhancement factor value leads to a consideration of possible formation of boudinage structure. Further studies are required to fully understand the differential flow behavior of large ice sheets.
- 国立極地研究所の論文
著者
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Shoji Hitoshi
Faculty Of Science Toyama University
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LANGWAY Chester
Ice Core Laboratory, Department of Geology, State University of New York at Buffalo
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Langway Chester
Ice Core Laboratory Department Of Geology State University Of New York At Buffalo
関連論文
- UNIAXIAL COMPRESSION TESTS OF SHALLOW ICE CORES FROM POLAR ICE SHEETS
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- ICE LAYER OBSERVATIONS IN THE G6 ANTARCTIC ICE CORE
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- STRUCTURE AND DIELECTRIC PROPERTIES OF SURFACE SNOW ALONG THE TRAVERSE ROUTE FROM COAST TO DOME FUJI STATION, QUEEN MAUD LAND, ANTARCTICA
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- ICE FLOW BEHAVIOR AT DYE 3,GREENLAND
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