Die Massenbilanzen des antarktischen und grönländischen Inlandeises und der Charakter ihrer Veränderungen


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Hans.Oerter [ at ] awi.de

Abstract

Mass balance of the ice sheets of Antarctica and Greenland and their changes: The freshwater resources of the two ice sheets in Antarctica and Greenland represent a potential rise of the global sea level of 70 m. So far it was assumed that for a moderate rise in global temperature the enhanced ice melt in Greenland will be compensated by higher accumulation rates in the interior of Antarctica. Only a further increase in temperatures will lead to a noti- ceable contribution to sea level from the polar ice sheet. A number of recent investigations demonstrate that the sen- sitivity of the ice sheets to temperature changes is much higher. Not only higher melt rates, but also ice dynamic ef- fects will lead to the disappearance of the Greenland Ice Sheet if temperatures rise a further three degrees. But also in Antarctica some areas, especially the West Antarctic Ice Sheet and the glaciers of the Antarctic Peninsula, alrea- dy react very sensitive on the ongoing climatic change which leads to a positive contribution to global sea level.



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Inbook
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Peer-reviewed
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Eprint ID
35623
Cite as
Mayer, C. and Oerter, H. (2014): Die Massenbilanzen des antarktischen und grönländischen Inlandeises und der Charakter ihrer Veränderungen / J. Lozan , H. Grassl , D. Notz and D. Piepenburg (editors) , In: Warnsignal Klima : die Polarregionen ; Gebiete höchster Empfindlichkeit mit weltweiter Wirkung, (Warnsignal Klima ; 14), Hamburg, Wiss. Auswertungen, 376 p., ISBN: 978-39809668-63 .


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