| 水汽输送对中国东部夏季雨带变化影响的诊断模拟 |
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| 引用本文： | 刘晓东.水汽输送对中国东部夏季雨带变化影响的诊断模拟[J].气象与减灾研究,2006,29(4):12-16. |
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| 作者姓名： | 刘晓东 |
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| 作者单位： | 江西省气象局,江西,南昌,330046 |
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| 摘 要： | 运用SVD方法分析了水汽输送与中国东部夏季降水的关系,结果表明:南海水汽输送通量的增加,一般使华南及江南地区的降水增强;孟加拉湾关键区水汽输送通量的增加,一般使华南和江南地区的降水增强,而使江淮流域的降水减弱。运用区域气候模式RegCM3,通过改变南海与孟加拉湾2个关键区水汽输送通量的敏感性试验,发现关键区水汽输送的变化,基本不改变主雨带的分布形势,但会对局部区域的降水产生影响。这基本验证了诊断分析的结果。
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| 关 键 词： | 水汽输送 夏季雨带 变化 诊断分析 |
| 文章编号： | 1007-9033（2006）04-0012-05 |
| 收稿时间： | 2006-04-12 |
| 修稿时间： | 2006-05-26 |
DIAGNOSIS AND SIMULATION OF INFLUENCE OF VAPOR TRANSPORTATION TO SUMMER RAIN'S TYPE CHANGES IN EASTERN CHINA |
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| LIU Xiao-dong.DIAGNOSIS AND SIMULATION OF INFLUENCE OF VAPOR TRANSPORTATION TO SUMMER RAIN''''S TYPE CHANGES IN EASTERN CHINA[J].Meteorology and Disaster Reduction Research,2006,29(4):12-16. |
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| Authors: | LIU Xiao-dong |
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| Institution: | Jianxi Provincial Meteorological Bureau,Nanchang 330046, China |
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| Abstract: | A method of Singular Value Decomposition(SVD)is used to study the relationship between vapor transportation and summer rain in eastern China.The result shows that increase of vapor flux in the Southern China Sea will raise rain in South China and the Jianghuai River;and also increase of vapor flux in Bengal bay will increase rain in South China and decrease rain in the Jianghuai River.By changing vapor flux in Southern China Sea and Bengal bay in a series of sensitive experiments with a regional climate model of RegCM3,we found that vapor flux changes in two key zone will not change the basic rain type but will affect rain in some areas,and this testify the diagnostic result in some ways. |
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| Keywords: | Vapor transportation Summer rain Change Diagnosis and simulation |
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