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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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one publication added to basket [111324]
A hindcast simulation of Arctic and Antarctic sea ice variability, 1955-2001 Fichefet, T.; Goosse, H.; Morales Maqueda, M. (2003). A hindcast simulation of Arctic and Antarctic sea ice variability, 1955-2001. Pol. Res. 22(1): 91-98. dx.doi.org/10.1111/j.1751-8369.2003.tb00100.x In: Polar Research. Norsk Polarinstitutt = Norwegian Polar Institute: Oslo. ISSN 0800-0395; e-ISSN 1751-8369, meer

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Beschikbaar in	Auteurs
VLIZ: Open access 121856 [ download pdf ]

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Trefwoorden

Ice > Sea ice Temporal variations PN, Arctisch [Marine Regions]; PS, Antarctische Oceaan [Marine Regions] Marien/Kust

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Auteurs		Top
Fichefet, T., meer Goosse, H., meer Morales Maqueda, M.

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Abstract

A hindcast simulation of the Arctic and Antarctic sea ice variability during 1955-2001 has been performed with a global, coarse resolution ice-ocean model driven by the National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis daily surface air temperatures and winds. Both the mean state and variability of the ice packs over the satellite observing period are reasonably well reproduced by the model. Over the 47-year period, the simulated ice area (defined as the total ice-covered oceanic area) in each hemisphere experiences large decadal variability together with a decreasing trend of ~1% per decade. In the Southern Hemisphere, this trend is mostly caused by an abrupt retreat of the ice cover during the second half of the 1970s and the beginning of the 1980s. The modelled ice volume also exhibits pronounced decadal variability, especially in the Northern Hemisphere. Besides these fluctuations, we detected a downward trend in Arctic ice volume of 1.8% per decade and an upward trend in Antarctic ice volume of 1.5% per decade. However, caution must be exercised when interpreting these trends because of the shortness of the simulation and the strong decadal variations. Furthermore, sensitivity experiments have revealed that the trend in Antarctic ice volume is model-dependent.

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