| Teleconnections：Summer Monsoon over Korea and India |
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| 作者姓名： | Baek-Jo Kim Sung-Euii Moon Lu Riyu R. H. Kripalani |
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| 作者单位： | [1]MeteorologicalResearchInstitute,KoreaMeteorologicalAdministration,Seoul156－720,Korea [2]LASG,InstituteofAtmosphericPhysics,ChineseAcademyofSciences,Beijing100080 |
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| 基金项目： | Acknowledgments. This study was supported by the Korea Enhanced Observing Period (KEOP), a Principal Project of the Meteorological Research Institute/ KMA, and by the " National Key Program for Developing Basic Sciences" G1998040900 Part 1 in China. The |
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| 摘 要： | This study investigates the relationship between the summer monsoon rainfall over Korea and India,by using correlation analysis and Singular Value Decomposition(SVD).Results reveal that summer monsoon rainfall over Korea is negatively(significant at the 99% level) correlated with the rainfall over the northwest and central parts of India.In addition,coupled spatial modes between the rainfall over Korea and India have been identified by the SVD analysis.The squared covariance fraction explained by the first mode is 70% and the correlation coefficient between the time coefficients of the two fields is significant at the 99% level,indicating that the coupled mode reflects a large part of the interaction between the summer monsoon rainfall over Korea and India.The first mode clearly demonstrates the existence of a significant negative correlation between the rainfall over the northwest and central parts of India and the rainfall over Korea.Possible mechanisms of this correlation are investigated by analyzing the variation of upper-level atmospheric circulation associated with the Tibetan high using NCEP/NCAR Reanalysis data.
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| 关 键 词： | 季风 汛期 韩国 印度 SVD方法 夏季 |
| 收稿时间： | 5 July 2001 |
Teleconnections: Summer monsoon over korea and india |
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| Baek-Jo Kim,Sung-Euii Moon,Lu Riyu,R. H. Kripalani.Teleconnections: Summer monsoon over korea and india[J].Advances in Atmospheric Sciences,2002,19(4):665-676. |
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| Authors: | Baek-Jo Kim Sung-Euii Moon Lu Riyu R H Kripalani |
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| Institution: | Meteorological Research Institute, Korea Meteorological Administration, Seoul 156-720, Korea,Korea Meteorological Administration, Seoul 156-720, Korea,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080,Indian Institute of Tropical Meteorology, Pune 411008, India |
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| Abstract: | This study investigates the relationship between the summer monsoon rainfall over Korea and India, by using correlation analysis and Singular Value Decomposition (SVD). Results reveal that summer monsoon rainfall over Korea is negatively (significant at the 99% level) correlated with the rainfall over the northwest and central parts of India. In addition, coupled spatial modes between the rainfall over Korea and India have been identified by the SVD analysis. The squared covariance fraction explained by the first mode is 70% and the correlation coefficient between the time coefficients of the two fields is significant at the 99% level, indicating that the coupled mode reflects a large part of the interaction between the summer monsoon rainfall over Korea and India. The first mode clearly demonstrates the existence of a significant negative correlation between the rainfall over the northwest and central parts of India and the rainfall over Korea. Possible mechanisms of this correlation are investigated by analyzing the variation of upper-level atmospheric circulation associated with the Tibetan high using NCEP/NCAR Reanalysis data. |
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| Keywords: | summer monsoon rainfall tibetan high singular value decomposition (SVD) |
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