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| PRELIMINARY STUDY ON RELATIONSHIP BETWEEN DOUBLE VORTICES SELF-ORGANIZATION AND TYPHOON FORMATION IN BAROCLINIC ENVIRONMENT | |
| 作者姓名： | 滕代高 罗哲贤 潘劲松 余 晖 |
| 作者单位： | TENG Dai-gao,PAN Jing-song(Zhejiang Meteorological Observatory, Hangzhou 310017 China);LUO Zhe-xian(School of Remote Sensing, NUIST, Nanjing 210044 China);YU Hui(Shanghai Typhoon Institute of CMA, Shanghai 200030 China) |
| 基金项目： | National Nature Science Foundation of China，key project of Science and Technology Department of Zhejiang Province，Chinese Meterological Administration's Special Funds(Meterology)for Scientific Research on Public Causes(GYHY |
| 摘 要： | The relationship between the self-organization of double vortices (SODVs) and the formation of
typhoons was discussed based on six numerical experiments with the Fifth-Generation National Center for
Atmospheric Research/Penn State Mesoscale Model (MM5) and further discussion was made with a real
typhoon case. The results showed that there is a critical distance dc for SODVs in baroclinic atmosphere.
When the distance between separated vortices is smaller than or equal to dc, the double vortices
self-organize into a typhoon-like vortex with two spiral bands. But the double vortices cannot have such
organization if the distance between them is larger than dc. The value of dc is about 380 km in the context
of ideal conditions in this paper, larger than that achieved in a barotropic model. A typical typhoon case in
2005 (Haitang) was selected to verify the above-mentioned conclusions. It was found that the SODV is one
of the important and typical ways for the formation of typhoons. |
PRELIMINARY STUDY ON RELATIONSHIP BETWEEN DOUBLE VORTICES SELF-ORGANIZATION AND TYPHOON FORMATION IN BAROCLINIC ENVIRONMENT |
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| TENG Dai-gao,LUO Zhe-xian,PAN Jing-song and YU Hui.PRELIMINARY STUDY ON RELATIONSHIP BETWEEN DOUBLE VORTICES SELF-ORGANIZATION AND TYPHOON FORMATION IN BAROCLINIC ENVIRONMENT[J].Journal of Tropical Meteorology,2010,16(4):372-379. | |
| Authors: | TENG Dai-gao LUO Zhe-xian PAN Jing-song and YU Hui |
| Institution: | 1. Zhejiang Meteorological Observatory, Hangzhou 310017 China 2. School of Remote Sensing, NUIST, Nanjing 210044 China 3. Shanghai Typhoon Institute of CMA, Shanghai 200030 China |
| Abstract: | The relationship between the self-organization of double vortices (SODVs) and the formation of typhoons was discussed based on six numerical experiments with the Fifth-Generation National Center for Atmospheric Research/Penn State Mesoscale Model (MM5) and further discussion was made with a real typhoon case. The results showed that there is a critical distance dc for SODVs in baroclinic atmosphere. When the distance between separated vortices is smaller than or equal to dc, the double vortices self-organiz... |
| Keywords: | baroclinic atmosphere self-organization of double vortices typhoon formation |
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