Measured velocities of interior East Antarctica and the state of mass balance within the I.A.G.P. area

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Authors:Young, N. W.
Volume Title:Journal of glaciology
Source:Journal of glaciology. 24(90). United Kingdom. P.77-87. ISSN: 0022-1430
Publication Date:1979
Note:In English with French and German summaries. 20 refs. Ant. Acc. No: 23182. CRREL Acc. No: 34002818
Abstract:Recent measurements of accumulation and ice velocity made in the interior of East Antarctica indicate that a large sector between 80E and 135E and north of 80S has close to a zero net mass budget. This sector is within the study area for the International Antarctic Glaciological Project (I.A.G.P.) and covers a major portion of the area indicated for projects of special emphasis. Velocity measurements were made at a number of points on a traverse route from Mirny on the coast to Dome "C" in the interior. Accumulation measurements were made along this and other traverse routes, extending as far as Vostok by a number of methods. These included stake, stratigraphic, isotopic, and total beta-decay observations. The better accumulation data have allowed a review of the total mass input to be made. The true mass budget has been estimated by comparing velocities along the traverse routes and on a number of the outlet glaciers. For this purpose the area was divided into a number of drainage basins according to outlet at the coast. The area of about 1 million sq km and 150 Gt/a flux input is drained primarily by three glacier systems of which the Totten accounts for 40% of the flux from 55% of the area; the Vanderford 20% from 15%; and the Scott/Denman 20% from 20%. (Auth.)
Index Terms:Ice sheet--Flow; Ice sheet--Mass balance; Snow--Accumulation; Snow accumulation; Ice sheets; Mass balance; Antarctica--East Antarctica
Coordinates:S900000 S650000 E1710000 W0400000
Publication Type:journal article
Record ID:75052
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