| FURTHER RESEARCH ON MECHANISM OF TBO IN SOUTH ASIAN MONSOON REGION |
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| 作者姓名： | 李崇银 李 琳 阙志萍 |
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| 作者单位： | Institute of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing 211101 China; Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 China; |
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| 基金项目： | National Natural Science Foundation of China （U0833602）; National Grand Fundamental Research 973 Program of China （2010CB950400） |
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| 摘 要： | The results of this study prove that there is significant troposphere biennial oscillation （TBO） in the South Asian climate, especially with the Indian summer monsoon rainfall. In order to explore the mechanism of TBO in the South Asian region, we defined a unified South Asian monsoon index to depict South Asian summer monsoon （SASM） and South Asian winter monsoon （SAWM） and the transition features between SASM and SAWM. Through further analysis, the connection between the abnormity of SASM and SAWM was discovered. Normally, a strong SAWM is beneficial for a weak SASM later, while a weak SAWM favors a strong SASM. Meanwhile, a strong SASM is favorable for a weak SAWM and a weak SAWM always happens after a weak SASM. Such results suggest the evolution of the South Asian monsoon, which may be an important mechanism to excite TBO in South Asia.
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| 关 键 词： | 南亚地区 TBO 机制 季风区 南亚季风 季风降水 过渡特征 季风指数 |
| 修稿时间： | 6/5/2014 12:00:00 AM |
FURTHER RESEARCH ON MECHANISM OF TBO IN SOUTH ASIAN MONSOON REGION |
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| LI Chong-yin,LI Lin and QUE Zhi-ping.FURTHER RESEARCH ON MECHANISM OF TBO IN SOUTH ASIAN MONSOON REGION[J].Journal of Tropical Meteorology,2014,20(3):202-207. |
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| Authors: | LI Chong-yin LI Lin and QUE Zhi-ping |
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| Institution: | Institute of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing 211101 China; Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 China; |
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| Abstract: | The results of this study prove that there is significant troposphere biennial oscillation (TBO) in the South Asian climate, especially with the Indian summer monsoon rainfall. In order to explore the mechanism of TBO in the South Asian region, we defined a unified South Asian monsoon index to depict South Asian summer monsoon (SASM) and South Asian winter monsoon (SAWM) and the transition features between SASM and SAWM. Through further analysis, the connection between the abnormity of SASM and SAWM was discovered. Normally, a strong SAWM is beneficial for a weak SASM later, while a weak SAWM favors a strong SASM. Meanwhile, a strong SASM is favorable for a weak SAWM and a weak SAWM always happens after a weak SASM. Such results suggest the evolution of the South Asian monsoon, which may be an important mechanism to excite TBO in South Asia. |
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| Keywords: | South Asia troposphere biennial oscillation (TBO) monsoon |
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