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| Titel |
How Climate Model Complexity Influences Sea Ice Stability |
| VerfasserIn |
Till Wagner, Ian Eisenman |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250108428
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| Publikation (Nr.) |
 EGU/EGU2015-8180.pdf |
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| Zusammenfassung |
| Two types of idealized climate models find instabilities, or `tipping points', during the retreat of sea ice under global warming: (i) annual-mean latitudinally-varying diffusive energy balance models (EBMs) and (ii) seasonally-varying single-column models (SCMs). Comprehensive global climate models, however, typically find no instabilities. To bridge this gap, we develop an idealized model that includes both latitudinal and seasonal variations. The model reduces to a standard EBM or SCM as limiting cases in the parameter regime, thus reconciling the two previous lines of research. Our results suggest that the ice cover is significantly more stable than found in previous idealized models. |
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