Effects of climatic perturbations on the equilibrium-line altitude, West Greenland
Open Access
- 1 January 1993
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Glaciology
- Vol. 39 (131) , 5-9
- https://doi.org/10.1017/s0022143000015665
Abstract
Perturbation analysis is applied to the heat balance at the EGIG line (West Greenland) with respect to climatic changes. The shift of the equilibrium-line altitude is obtained for perturbations of temperature, absolute humidity, cloudiness and annual accumulation. The total net ice ablation at the EGIG line increases by 45% with a perturbation of + 1 K. Applying this figure to the entire ice sheet, the total ablation equals the total accumulation at a warming of + 2 K, if refreezing of melt water is neglected.Keywords
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