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Interannual Variability of the Convective Activities Associated with the East Asian Summer Monsoon Obtained from TBB Variability


doi: 10.1007/s00376-999-0005-4

  • In this paper, the interannual variability of the convective activities associated with the East Asian summer monsoon and its association with the thermal distribution of SST anomalies in the tropical Pacific are analyzed by using the daily TBB (Temperature of Black Body at Cloud Top) dataset from 1980 to 1991. The results of composite and individual analyses of TBB anomalies show that the interannual variability of the convective activities associated with the summer monsoon in East Asia is large and has a close relation to the thermal distribution of SST anomalies in the tropical Pacific, espec?ially in the western Pacific warm pool. In the summer with ENSO-like distribution of SST anoma?lies in the tropical Pacific, the convective activities are weak around the Philippines, then the convective activities are intensified and the summer monsoon rainfall is strong in the area from the Yangtze River basin and the Huaihe River basin in China to Republic of Korea and Japan. On the contrary, in the summer with anti-ENSO-like distribution of SST anomalies in the tropical Pacific, the convective activities are strong around the Philippines, then the convective activities are weakened and the summer monsoon rainfall is weak in the area from the Yangtze River basin and the Huaihe River basin to Republic of Korea and Japan. It may be also found either from the composite analysis or from the individual analysis of TBB anomalies that the convective activities associated with the summer monsoon in East Asia have a good negative relation to that around the Philippines and a positive relation to that over the equatorial central Pacific.
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    [2] XUE Feng, ZENG Qingcun, HUANG Ronghui, LI Chongyin, LU Riyu, ZHOU Tianjun, 2015: Recent Advances in Monsoon Studies in China, ADVANCES IN ATMOSPHERIC SCIENCES, 32, 206-229.  doi: 10.1007/s00376-014-0015-8
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    [4] FENG Jinming, WEI Ting, DONG Wenjie, WU Qizhong, and WANG Yongli, 2014: CMIP5/AMIP GCM Simulations of East Asian Summer Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 836-850.  doi: 10.1007/s00376-013-3131-y
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    [6] ZENG Gang, SUN Zhaobo, Wei-Chyung WANG, MIN Jinzhong, 2007: Interdecadal Variability of the East Asian Summer Monsoon and Associated Atmospheric Circulations, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 915-926.  doi: 10.1007/s00376-007-0915-y
    [7] SU Tonghua, XUE Feng*, ZHANG He, 2014: Simulating the Intraseasonal Variation of the East Asian Summer Monsoon by IAP AGCM4.0, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 570-580.  doi: 10.1007/s00376-013-3029-8
    [8] Ronghui HUANG, Yong LIU, Zhencai DU, Jilong CHEN, Jingliang HUANGFU, 2017: Differences and Links between the East Asian and South Asian Summer Monsoon Systems: Characteristics and Variability, ADVANCES IN ATMOSPHERIC SCIENCES, 34, 1204-1218.  doi: 10.1007/ s00376-017-7008-3
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    [10] Congwen ZHU, Boqi LIU, Kang XU, Ning JIANG, Kai LIU, 2021: Diversity of the Coupling Wheels in the East Asian Summer Monsoon on the Interannual Time Scale: Challenge of Summer Rainfall Forecasting in China, ADVANCES IN ATMOSPHERIC SCIENCES, 38, 546-554.  doi: 10.1007/s00376-020-0199-z
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Manuscript received: 10 January 1999
Manuscript revised: 10 January 1999
通讯作者: 陈斌, bchen63@163.com
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Interannual Variability of the Convective Activities Associated with the East Asian Summer Monsoon Obtained from TBB Variability

  • 1. Department of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026,Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080

Abstract: In this paper, the interannual variability of the convective activities associated with the East Asian summer monsoon and its association with the thermal distribution of SST anomalies in the tropical Pacific are analyzed by using the daily TBB (Temperature of Black Body at Cloud Top) dataset from 1980 to 1991. The results of composite and individual analyses of TBB anomalies show that the interannual variability of the convective activities associated with the summer monsoon in East Asia is large and has a close relation to the thermal distribution of SST anomalies in the tropical Pacific, espec?ially in the western Pacific warm pool. In the summer with ENSO-like distribution of SST anoma?lies in the tropical Pacific, the convective activities are weak around the Philippines, then the convective activities are intensified and the summer monsoon rainfall is strong in the area from the Yangtze River basin and the Huaihe River basin in China to Republic of Korea and Japan. On the contrary, in the summer with anti-ENSO-like distribution of SST anomalies in the tropical Pacific, the convective activities are strong around the Philippines, then the convective activities are weakened and the summer monsoon rainfall is weak in the area from the Yangtze River basin and the Huaihe River basin to Republic of Korea and Japan. It may be also found either from the composite analysis or from the individual analysis of TBB anomalies that the convective activities associated with the summer monsoon in East Asia have a good negative relation to that around the Philippines and a positive relation to that over the equatorial central Pacific.

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