A simple method for calculating mass flux in an ice sheet, with a consideration of its temperature profile
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概要
- 論文の詳細を見る
For estimating the mass flux of ice at a given place on an ice sheet, a new method has been proposed, in which the vertical temperature profile was taken into account. The linear profile was assumed and it was determined from the bottom temperature and the temperature gradient at the bottom, both of which were estimated by the column model. The temperature dependence of the flow law of ice was converted to a simple expression which approximates the usual Arrhenius type relations well. This conversion together with the above assumption enabled the calculation of the mass flux to be done without any numerical integration. Error in the estimate of the mass flux caused by the linear temperature profile was calculated for conditions in the Shirase drainage basin, East Antarctica and it was shown to be less than about 11%.
- 国立極地研究所の論文
著者
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HIGASHI Akira
Department of Applied Physics, Faculty of Engineering, Hokkaido University
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Nakawo Masayoshi
Department Of Applied Physics Faculty Of Engineering Hokkaido University
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Higashi Akira
Department Of Applied Physics Faculty Of Engineering Hokkaido University
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Nagao Masatoshi
Department of Applied Physics, Faculty of Engineering, Hokkaido University
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Nagao Masatoshi
Department Of Applied Physics Faculty Of Engineering Hokkaido University
関連論文
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- IV. Net Accumulation of Snow Along Traverse Routes in Mizuho Plateau(GLACIOLOGICAL RESEARCH PROGRAM IN EAST QUEEN MAUD LAND, EAST ANTARCTICA PART 2, 1983)
- III. Surface Meteorological Data During Oversnow Traverses(GLACIOLOGICAL RESEARCH PROGRAM IN EAST QUEEN MAUD LAND, EAST ANTARCTICA PART 2, 1983)
- II. Position, Elevation and Ice Thickness of Stations(GLACIOLOGICAL RESEARCH PROGRAM IN EAST QUEEN MAUD LAND, EAST ANTARCTICA PART 2, 1983)
- I. Introduction
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