| THE POSITION VARIATION OF THE WEST PACIFIC SUBTROPICAL HIGH
AND ITS POSSIBLE MECHANISM |
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| 作者姓名： | 王黎娟 管兆勇 何金海 |
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| 作者单位： | KLME, Nanjing University of Information Science & Technology;KLME, Nanjing University of Information Science & Technology;KLME, Nanjing University of Information Science & Technology |
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| 基金项目： | Innovation Plans for Postgraduates of Higher Education Colleges in Jiangsu Province
(E30000008098-3); Natural Science Foundation of China (40575045); National Key Fundamental Research
Development Plans (2004CB418302; 2004CB418303) |
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| 摘 要： | Using NCEP/NCAR daily reanalysis data and SCSMEX data, an investigation is carried out of
the relationship between the position variation of the west Pacific subtropical high (WPSH) and the apparent
heating in June 1998 based on the complete vertical vorticity equation. It is found that the non-adiabatic heating
plays an important role in the position variation of WPSH. In comparison with climatic mean status, the vertical
change of non-adiabatic heating is stronger in the north side of WPSH in June 1998, but weaker in the south side
of WPSH. The anomalous non-uniform heating induces anomalous cyclonic vorticity in South China, areas to the
south of the Yangtze and its mid-lower valleys, but anomalous anticyclonic vorticity in the Indo-China Peninsula
and South China Sea areas lead to the more southward position of WPSH than the mean.
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| 关 键 词： | West Pacific subtropical high position variation apparent heating |
THE POSITION VARIATION OF THE WEST PACIFIC SUBTROPICAL HIGH
AND ITS POSSIBLE MECHANISM |
| |
| WANG Li-juan,GUAN Zhao-yong and HE Jin-hai.THE POSITION VARIATION OF THE WEST PACIFIC SUBTROPICAL HIGH
AND ITS POSSIBLE MECHANISM[J].Journal of Tropical Meteorology,2006,12(2):113-120. |
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| Authors: | WANG Li-juan GUAN Zhao-yong and HE Jin-hai |
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| Institution: | KLME, Nanjing University of Information Science & Technology, Nanjing 210044 China |
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| Abstract: | Using NCEP/NCAR daily reanalysis data and SCSMEX data, an investigation is carried out of
the relationship between the position variation of the west Pacific subtropical high (WPSH) and the apparent
heating in June 1998 based on the complete vertical vorticity equation. It is found that the non-adiabatic heating
plays an important role in the position variation of WPSH. In comparison with climatic mean status, the vertical
change of non-adiabatic heating is stronger in the north side of WPSH in June 1998, but weaker in the south side
of WPSH. The anomalous non-uniform heating induces anomalous cyclonic vorticity in South China, areas to the
south of the Yangtze and its mid-lower valleys, but anomalous anticyclonic vorticity in the Indo-China Peninsula
and South China Sea areas lead to the more southward position of WPSH than the mean. |
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| Keywords: | West Pacific subtropical high position variation apparent heating |
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