| 北部湾沿海基本风压和阵风风压分析 |
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| 引用本文： | 苏志,张瑞波,周绍毅,黄颖.北部湾沿海基本风压和阵风风压分析[J].热带地理,2010,30(2). |
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| 作者姓名： | 苏志 张瑞波 周绍毅 黄颖 |
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| 作者单位： | 1. 广西区气候中心,南宁,530022
2. 广西区人工影响天气办公室,南宁,530022 |
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| 摘 要： | 利用北部湾沿海7个气象站建站至2008年最大风速资料,采用指数律风速廓线公式和"时次换算"方法订正最大风速,得到长年代10m高处10min平均年最大风速序列;采用极值I型分布估算北部湾沿海各地50年一遇最大风速,通过伯努利方程计算基本风压。结果表明:北部湾沿海的基本风压以涠洲岛最大,达1.13kN/m2;其次是东兴、北海,分别为0.59和0.58kN/m2;第三位是防城港和合浦,分别为0.49和0.47kN/m2;最小是防城和钦州,分别为0.39和0.33kN/m2,表明越靠近海的地方基本风压越大。利用建站至2008年的极大风速资料对北部湾沿海的阵风风压进行分析,发现阵风风压分布特点与基本风压相同,而且阵风风压比基本风压大,海岸区域的阵风风压约为基本风压的2倍,涠洲岛则是1.54倍。
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| 关 键 词： | 基本风压 阵风风压 最大风速 极大风速 |
Analysis of Basic Wind Pressure and Gust Wind Pressure in the Beibu Gulf Coast |
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| SU Zhi,ZHANG Ruibo,ZHOU Shaoyi,HU Ying.Analysis of Basic Wind Pressure and Gust Wind Pressure in the Beibu Gulf Coast[J].Tropical Geography,2010,30(2). |
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| Authors: | SU Zhi ZHANG Ruibo ZHOU Shaoyi HU Ying |
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| Institution: | SU Zhi 1,ZHANG Ruibo 2,ZHOU Shaoyi 1,HU Ying 1 (1.Guangxi Climate Center,Nanning 530022,China,2.Guangxi Weather Modification Office,China) |
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| Abstract: | The long chronology series of annual mean maximum wind speed in 10min at 10m height were obtained using the exponential law wind speed profile formula and the method of time lever conversion for revising,based on the maximum wind speed datasets of seven weather stations in the Beibu gulf coast from the date when the stations built to 2008.The maximum wind speed of 50 year frequency in the Beibu gulf coast was estimated using the function of Extreme I,and the basic wind pressure was calculated based on the B... |
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| Keywords: | basic wind pressure gust wind pressure maximum wind speed extreme wind speed |
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