On the relationship between Indian Ocean Sea Surface Temperature and Asian summer monsoon
Loading...
Authors
Li, T.
Y. Zhang
Chang, C.-P.
Wang, B.
Subjects
Advisors
Date of Issue
2001
Date
Publisher
Language
Abstract
Indian Ocean SST has been thought to play a weaker role in Indian summer monsoon rainfall than does the equatorial eastern Pacific SST. In this study we show that on the tropical biennial oscillation (TBO, 2-3 year) time scale the Indian monsoon rainfall has significant positive correlations with the Indian Ocean SST and moisture flux transport in the preceding winter and spring. The effect of this SST influence is quite different from the remote forcing of the Indian monsoon rainfall by the eastern Pacific SST, which is more dominant on the El Nino-Southern Oscillation (ENSO, 3-7 year) time scale. We conclude that while the eastern Pacific SST and the Eurasian land temperature both may affect the monsoon on the ENSO time scale, they are not important on the TBO time scale. Our results support the tropical and local feedback theories of TBO that this most important component of the monsoon variation is largely influenced by the Indian Ocean SST and interactions within the tropical atmosphere ocean system
Type
Article
Description
Geophys. Res. Let., 28, 2843-2846. (Manuscript)
Series/Report No
Department
Organization
Identifiers
NPS Report Number
Sponsors
Funding
Format
Citation
Li, T., Y. Zhang, C.-P. Chang and B. Wang, 2001: On the relationship between Indian Ocean SST and Asian summer monsoon. Geophys. Res. Let., 28, 2843-2846. (Manuscript)
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.