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| 江西“2010.6.19”特大暴雨水汽输送过程分析 | |
| 引用本文： | 肖安,张瑛,马中元,陈云辉,吴静.江西“2010.6.19”特大暴雨水汽输送过程分析[J].气象水文海洋仪器,2011,28(2):36-42. |
| 作者姓名： | 肖安 张瑛 马中元 陈云辉 吴静 |
| 作者单位： | 1. 江西省气象台,南昌,330046 2. 江西省气象台，南昌 330046;中国气象局武汉暴雨研究所，武汉 430074 3. 江西省气象科学研究所,南昌,330046 |
| 基金项目： | 中国气象局武汉暴雨研究所暴雨研究开放基金项目(IHR2009K03); 江西省气象局重点项目(JX-QX2009Z03、JXQX2010Z03)共同资助 |
| 摘 要： | 利用NCEP（1°×1°）再分析资料、常规气象观测资料和WRF中尺度数值模式,对2010-06-19江西出现的历史罕见特大暴雨天气水汽输送的过程进行分析。结果表明：特大暴雨天气过程的水汽输送源地以南海和孟加拉湾为主,强降水落区在水汽输送带左侧风向切变线附近。暴雨过程是由两次强降水天气过程组成：一次是19日02：00江西南部和福建南部交界处的中尺度系统北抬形成的赣北暴雨;另一次是19日20：00由湖南中尺度气旋及其后续的中尺度系统东移造成的大范围暴雨。利用WRF数值模式对整层水汽输送进行高分辨力数值模拟发现,暴雨落区出现在整层水汽输送最大值区域和梯度最大处,且整层水汽输送方向为西南-东北走向。 |
| 关 键 词： | 特大暴雨 水汽输送 整层水汽输送梯度 WRF模式 |
Vapor transportation of a heavy rainfall in Jiangxi on June 19,2010 |
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| Xiao'an,Zhang Ying,Ma Zhongyuan,Chen Yunhui,Wu Jing.Vapor transportation of a heavy rainfall in Jiangxi on June 19,2010[J].Meteorological，Hydrological and Marine Instruments,2011,28(2):36-42. | |
| Authors: | Xiao'an Zhang Ying Ma Zhongyuan Chen Yunhui Wu Jing |
| Affiliation: | 1(1.Jiangxi Observatory,Nanchang 330046;2.Wuhan Heavy Rain Institute of China Meteorological Administration,Wuhan 430074;3.Jiangxi Meteorological Science Institute,Nanchang 330046) |
| Abstract: | By using NCEP（1°×1°） reanalysis data,conventional observation data and WRF meso-scale numerical model,the vapor transportation of a rare heavy rainfall event was analyzed which occurred in Jiangxi on June 19,2010.The results showed that the vapor source related to the heavy rainfall came from the South China Sea and Bengal Bay via India-China peninsula.The region of heavy rainfall located in the left of water vapor band and closed to the vicinity of the wind shear line.This event consists of two heavy rainfall processes： the first one occurred in the north of Jiangxi which caused by the northern moving of the mesoscale system located in the border of the southern Fujian and the south of Jiangxi at 02：00 in 19th day;the another one caused by the meso-scale convective system located in the Hunan at 20：00 in 19th day.According to the simulated result of WRF,it shows that the heavy rainfall often occurs in the maximum gradient of water flux and the entire water vapor transportation band presents the distribution from southwest to northeast. |
| Keywords: | heavy rainfall water vapor transportation gradient of integrated water vapor WRF model |
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