| 东沙岛海域近56a热带气旋影响统计分析 |
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| 引用本文： | 林镇国,罗森波,梁健.东沙岛海域近56a热带气旋影响统计分析[J].台湾海峡,2007,26(4):472-475. |
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| 作者姓名： | 林镇国 罗森波 梁健 |
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| 作者单位： | 1. 兰州大学大气科学院,甘肃,兰州,730000;广州中心气象台,广东,广州,510080
2. 广州中心气象台,广东,广州,510080 |
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| 摘 要： | 本文利用1949~2005年TC年鉴资料,对经过东沙岛附近海域约200km范围内的热带气旋(下简称TC)影响情况进行了分析,结果表明:(1)近56a共有288个TC影响东沙岛附近海域,平均每年5个左右.2000年以后影响个数有下降趋势;(2)年度最早影响的TC是4月9日,最晚影响的是12月27日;(3)7、8、9月3个月最多,约占影响总个数的2/3,影响该区的TC中STS和TY两种级别约占一半;(4)近10a大约有40个TC影响该海域,平均风速为22m/s,极大风速达到55m/s.
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| 关 键 词： | 东沙岛海域 TC影响 统计分析 |
| 文章编号： | 1000-8160（2007）04-0472-04 |
| 修稿时间： | 2006-12-31 |
Statistical analysis on the tropical cyclones in Dongsha Island seas in recent 56 years |
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| LIN Zhen-guo,LUO Sen-bo,LIANG Jian.Statistical analysis on the tropical cyclones in Dongsha Island seas in recent 56 years[J].Journal of Oceanography In Taiwan Strait,2007,26(4):472-475. |
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| Authors: | LIN Zhen-guo LUO Sen-bo LIANG Jian |
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| Institution: | 1. College of Atmospheric Science Lanzhou University, Lanzhou 730000, China;2. Guangzhou Central Meteorological Observatory, Guangzhou 510080, China |
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| Abstract: | With TC data from 1949 to 2005,we analyzes the situation of TC influence the waters around 200km of Dongsha Islands.The results indicated that in recent 56 years there were 288 TC affecting Dongsha Island seas,in frequency of 5 times per year.Since 2000,the affects tended to decrease.Secondly,the first TC influence occurred on April 9 and the latest December 27.The third,July,August and September were the seasons TC influenced the most,in approximately the rate 2/3 of the total.The ranks STS and TY were composed approximately 1/2 of the total.The last,there were 40 TC affected the areas in recent 10 years.The average wind power was about 22m/s with maximum wind speed at 55m/s. |
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| Keywords: | Dongsha Island seas TC influence statistical analysis |
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