| PRELIMINARY RESEARCH ON THE RELATIONSHIPS BETWEEN THE INNER CORE SIZE AND OUTER SIZE OF TROPICAL CYCLONES AND THEIR INTENSITY |
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| 作者姓名： | 吴联要 雷小途 |
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| 作者单位： | Zhejiang Meteorological Observatory, Hangzhou 310017 China; Shanghai Typhoon Institute of China Meteorological Administration, Shanghai 200030 China |
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| 基金项目： | Natural Fundamental Research and Development Project Program(2013CB430305);Specialized Research Project for Public Welfare Sector(Meteorology)(GYHY201406010) |
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| 摘 要： | Based on the Regional Spectral Model (RSM) re-analysis data from Japan Meteorological Agency (JMA) with a horizontal resolution of 20 km and a time interval of 6 h, this study works on the outer and inner core size of 2174 samples of tropical cyclones (TCs) occurring over the western North Pacific between 2001 and 2007. Some conclusions have been drawn on the basis of preliminary analysis of the TC inner core size and outer size and their relationship with TC intensity. First, the outer size increase (decrease) helps TCs intensify (weaken). Second, the enlargement (shrinking) of the inner core size helps TCs intensify (weaken) if TCs have a large inner core (with radius of maximum winds larger than 120 km). Contrarily, when TCs have small inner core (with radius of maximum winds smaller than 120 km), the enlargement (shrinking) of the inner core is good for weakening (intensifying) of TCs.
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| 关 键 词： | tropical cyclone size inner core intensity |
| 修稿时间： | 2014/8/15 0:00:00 |
PRELIMINARY RESEARCH ON THE RELATIONSHIPS BETWEEN THE INNER CORE SIZE AND OUTER SIZE OF TROPICAL CYCLONES AND THEIR INTENSITY |
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| WU Lian-yao and LEI Xiao-tu.PRELIMINARY RESEARCH ON THE RELATIONSHIPS BETWEEN THE INNER CORE SIZE AND OUTER SIZE OF TROPICAL CYCLONES AND THEIR INTENSITY[J].Journal of Tropical Meteorology,2014,20(4):308-313. |
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| Authors: | WU Lian-yao and LEI Xiao-tu |
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| Institution: | Zhejiang Meteorological Observatory, Hangzhou 310017 China; Shanghai Typhoon Institute of China Meteorological Administration, Shanghai 200030 China |
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| Abstract: | Based on the Regional Spectral Model (RSM) re-analysis data from Japan Meteorological Agency (JMA) with a horizontal resolution of 20 km and a time interval of 6 h, this study works on the outer and inner core size of 2174 samples of tropical cyclones (TCs) occurring over the western North Pacific between 2001 and 2007. Some conclusions have been drawn on the basis of preliminary analysis of the TC inner core size and outer size and their relationship with TC intensity. First, the outer size increase (decrease) helps TCs intensify (weaken). Second, the enlargement (shrinking) of the inner core size helps TCs intensify (weaken) if TCs have a large inner core (with radius of maximum winds larger than 120 km). Contrarily, when TCs have small inner core (with radius of maximum winds smaller than 120 km), the enlargement (shrinking) of the inner core is good for weakening (intensifying) of TCs. |
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| Keywords: | tropical cyclone size inner core intensity |
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