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Titel |
Using records from submarine, aircraft and satellites to evaluate climate model simulations of Arctic sea ice thickness |
VerfasserIn |
J. Stroeve, A. Barrett, M. Serreze, A. Schweiger |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1994-0416
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Digitales Dokument |
URL |
Erschienen |
In: The Cryosphere ; 8, no. 5 ; Nr. 8, no. 5 (2014-10-10), S.1839-1854 |
Datensatznummer |
250116323
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Publikation (Nr.) |
copernicus.org/tc-8-1839-2014.pdf |
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Zusammenfassung |
Arctic sea ice thickness distributions from models participating in the
World Climate Research Programme Coupled Model Intercomparison Project Phase
5 (CMIP5) are evaluated against observations from submarines, aircraft and
satellites. While it is encouraging that the mean thickness distributions
from the models are in general agreement with observations, the spatial
patterns of sea ice thickness are poorly represented in most models. The
poor spatial representation of thickness patterns is associated with a
failure of models to represent details of the mean atmospheric circulation
pattern that governs the transport and spatial distribution of sea ice. The
climate models as a whole also tend to underestimate the rate of ice volume
loss from 1979 to 2013, though the multimodel ensemble mean trend remains
within the uncertainty of that from the Pan-Arctic Ice Ocean Modeling and
Assimilation System. Although large uncertainties in observational products
complicate model evaluations, these results raise concerns regarding the
ability of CMIP5 models to realistically represent the processes driving the
decline of Arctic sea ice and to project the timing of when a seasonally
ice-free Arctic may become a reality. |
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