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| Titel |
Insights from a joint analysis of Indian and Chinese monsoon rainfall data |
| VerfasserIn |
M. Zhou, F. Tian, U. Lall, H. Hu |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 15, no. 8 ; Nr. 15, no. 8 (2011-08-29), S.2709-2715 |
| Datensatznummer |
250012936
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| Publikation (Nr.) |
 copernicus.org/hess-15-2709-2011.pdf |
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| Zusammenfassung |
| Monsoon rainfall is of great importance for agricultural production in both
China and India. Understanding the features of the Indian and Chinese
monsoon rainfall and its long term predictability is a challenge for
research. In this paper Principal Component Analysis (PCA) method was
adopted to analyze Indian monsoon and Chinese monsoon separately as well as
jointly during the period 1951 to 2003. The common structure of Indian
monsoon and Chinese monsoon rainfall data was explored, and its correlation
with large scale climate indices and thus the possibility of prediction were
analyzed. The joint PCA results gives a clearer correlation map between
Chinese monsoon rainfall and Indian monsoon rainfall. The common rainfall
structure presents a significant teleconnection to Sea Surface Temperature
anomaly (SSTa), moisture transport and other climate indices. Specifically,
our result shows that Northern China would garner less rainfall when whole
Indian rainfall is below normal, and with cold SSTa over the Indonesia
region more rainfall would be distributed over India and Southern China. The
result also shows that SSTa in the previous winter months could be a good
indicator for the summer monsoon rainfall in China. |
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