Sensitivity of the European LGM climate to North Atlantic sea-surface temperature
| Type | Article | ||||||||
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| Date | 1999-07 | ||||||||
| Language | English | ||||||||
| Author(s) | Pinot S1, Ramstein G1, Marsiat I2, de Vernal A3, Peyron O4, Duplessy Jc1, Weinelt M5 | ||||||||
| Affiliation(s) | 1 : CEA, CNRS, UMR, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France. 2 : Univ Reading, Dept Meteorol, Reading, Berks, England. 3 : Univ Quebec, Geotop, Montreal, PQ H3C 3P8, Canada. 4 : CNRS, CEREGE, Aix En Provence, France. 5 : Univ Kiel, Inst Geol Palaontol, D-2300 Kiel, Germany. |
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| Source | Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 1999-07 , Vol. 26 , N. 13 , P. 1893-1896 | ||||||||
| DOI | 10.1029/1999GL900361 | ||||||||
| WOS© Times Cited | 24 | ||||||||
| Abstract | Recent reconstructions of Sea-Surface Temperatures (SSTs) for the Last Glacial Maximum (LGM, 21 kyr BP) based on foraminifera and dinoflagellate proxies suggest that the north Atlantic may have been warmer than estimated by CLIMAP [1981]. To better understand the impact of such a warm north Atlantic on the global LGM climate, we used two different AGCMs to perform sensitivity studies. With the new, warmer SSTs, both models simulate a hydrological cycle and temperatures very different from those obtained with the CLIMAP boundary conditions. The most noticeable differences occur in winter over North America and Siberia whereas southern Europe is only weakly affected at all seasons. Whichever the conditions prescribed over the north Atlantic, both models underestimate the large cooling recorded by continental proxy data over the Mediterranean Basin. | ||||||||
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