| 热带气旋风场的计算 |
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| 引用本文： | 陈孔沫.热带气旋风场的计算[J].热带海洋学报,1991(1). |
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| 作者姓名： | 陈孔沫 |
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| 作者单位： | 国家海洋局第三海洋研究所 厦门361000 |
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| 摘 要： | 基于以前对热带气旋气压场和风场的研究,作者求出一种能适用于任意热带气旋风压结构且具有一定普遍意义的热带气旋风速分布一般式。同时修正了宫崎正卫关于台风合成风风场的假设,将本文求出的热带气旋风速变化规律作为静止热带气旋风速,以热带气旋移行速度V,按到热带气旋中心距离r指数衰减作为大尺度的本底风场,由矢量合成原理求出另一种移行热带气旋风速分布式。新的移行热带气旋风速分布式还考虑到环境气压等因素的影响,从所计算的个例看,计算风速与实际风速较为吻合。此外,在缺乏海上风压资料的情况下,能由任一条封闭等压线的气压和矢径计算热带气旋风场分布。
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| 关 键 词： | 热带气旋 风场 风速 数学 |
A CALCULATION OF TROPICAL CYCLONE WIND FIELD |
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| Chen Kongmo.A CALCULATION OF TROPICAL CYCLONE WIND FIELD[J].Journal of Tropical Oceanography,1991(1). |
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| Authors: | Chen Kongmo |
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| Abstract: | A general formula for wind speed distribution of typhoon was obtained,which is of general significance and suitable for any wind pressure construction of typhoon. Meanwhile, this pattern corrects Myazakimasa-mori's hypothesis on the compound wind field of typhoon, in which the given variation pattern of typhoon wind is regarded as stationary wind speed of typhoon, and the index attenuation of moving speed Vs with distance from typhoon center is a large scale wind field background, of which another new wind speed distribution formula of moving typhoon is obtained by resultant vector principle. The new formula also includes the consideration of surrounding pressure and other factors. The example of calculation shows that the given wind speed accords with the practical. In addition, wind speed distribution of typhoon can be obtained from the pressure and vector at any enclosed isobar, when wind pressure data on sea is lacking. |
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| Keywords: | tropical cyclone wind field wind speed mathematics |
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