Weddell Sea anomalies: Excitation, propagation, and1 possible consequences2
Antarctic marginal seas are susceptible to significant decadal variability6 as revealed by the analysis of a 200-year integration of a regional ice-ocean7 model forced with the atmospheric output of the IPCC climate model ECHAM5-8 MPIOM. The strongest signal occurs on the southern and western Weddel...
| Main Authors: | , , |
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.460.4117 http://epic.awi.de/18247/1/Hel2008a.pdf |
| Summary: | Antarctic marginal seas are susceptible to significant decadal variability6 as revealed by the analysis of a 200-year integration of a regional ice-ocean7 model forced with the atmospheric output of the IPCC climate model ECHAM5-8 MPIOM. The strongest signal occurs on the southern and western Weddell9 Sea continental shelf where changes in bottom salinity are initiated by a vari-10 able sea ice cover and modification of surface waters near the Greenwich merid-11 ian. Related zonal shifts of the western rim current guide deep waters with12 different temperature out of the Weddell Sea. With a deep boundary cur-13 rent the temperature signal propagates westward through southern Drake14 Passage and along the upper continental rise in the southeast Pacific thereby15 influencing the hydrographic conditions on the continental shelf of Belling-16 |
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