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| Titel |
Distinct responses of East Asian summer and winter monsoons to astronomical forcing |
| VerfasserIn |
Z. G. Shi, X. D. Liu, Y. B. Sun, Z. S. An, Z. Liu, J. Kutzbach |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1814-9324
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| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 7, no. 4 ; Nr. 7, no. 4 (2011-12-12), S.1363-1370 |
| Datensatznummer |
250004693
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| Publikation (Nr.) |
 copernicus.org/cp-7-1363-2011.pdf |
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| Zusammenfassung |
| Influences of the Earth's astronomical forcing on the evolution of East
Asian monsoon have been demonstrated with various geological records
and climate models. Here, we present time series of climatic proxies
from the Chinese Loess Plateau and Sanbao/Hulu caves and the
winter/summer monsoon intensity index from a long-term transient
climate model simulation. Both the observations and modelling results
reveal consistently distinct responses of East Asian summer and winter
monsoons to astronomical forcing. Different from the dominant local impact
on the summer monsoon at the precession scale (~20 ka period),
the East Asian winter monsoon is driven predominantly by the obliquity
forcing (~40 ka period). We propose that the obliquity forcing
controls the meridional insolation difference and, therefore, exerts
a more significant effect on the evolution of the East Asian winter
monsoon than previously expected. |
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