Perimeter of Antarctica and Antarctic ice sheet budget

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Authors:Bardin, V. I.; Suetova, I. A.
Volume Title:Antarctic (Antarktika)
Source:Antarctic (Antarktika). India. P.105-121
Publication Date:1971
Note:Translation from Antarktika: Doklady komissii, 1964. Moskva, Nauka, 1965. 30 refs. Ant. Acc. No: 10972. CRREL Acc. No: 27000246
Abstract:A new calculation of the ice budget for the entire continent of Antarctica is made. For the purpose of accurate determination of the discharge through formation of icebergs, a careful measurement of the coastline was made which showed the length to be 30,030 km. The iceberg discharge is calculated for each type of glacial coastline (outlet glaciers, ice shelves, and continental ice barriers), the total of which is 1180 cu km/yr. Other sources of discharge are underwater melting from ice shelves (250 cu km/yr) and bottom melting in the central part of the ice cap (20 cu km/yr). The total rate of ice accumulation, 2420 cu km/yr, is compiled from the value calculated by the present authors for the Antarctic Peninsula and that given by Dolgushin, Evteev, and Kotliakov (1964) for the remaining part of the continent. A positive ice budget of 970 cu km/yr is obtained from these figures. The problem of establishing the accuracy of ice-budget calculations is discussed. The mean quadratic error for this determination is plus or minus 170 cu km/yr, or 20 per cent. For Russian original see F-4543.
Index Terms:Ice sheet--Mass balance; Ice sheets; Mass balance; Glacier oscillation
Publication Type:journal article
Record ID:42308
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