| 川北一次大暴雨过程的物理量诊断分析 |
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| 引用本文： | 刘运成.川北一次大暴雨过程的物理量诊断分析[J].成都信息工程学院学报,2008,23(6):678-681. |
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| 作者姓名： | 刘运成 |
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| 作者单位： | 四川省广元市气象局,四川,广元,628017 |
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| 摘 要： | 利用2005年7月16日至19日的高空地面资料,对当年7月18日至19日发生在川北的一次大暴雨天气过程进行了环流形势分析和物理量诊断分析,得出了产生此次大暴雨过程的环流特点,并利用假相当位温、水汽通量散度和改进的湿Q矢量散度场分析了暴雨的落区、强度和持续时间。
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| 关 键 词： | 暴雨 湿Q矢量 散度 诊断分析 |
Diagnostic analysis of a torrential rain process in north Sichuan Basin |
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| LIU Yun-cheng.Diagnostic analysis of a torrential rain process in north Sichuan Basin[J].Journal of Chengdu University of Information Technology,2008,23(6):678-681. |
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| Authors: | LIU Yun-cheng |
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| Institution: | LIU Yun-cheng(Guangyuan Bureau of Meteorology,Guangyuan 628017,China) |
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| Abstract: | Based on the routine observation the diagnosis of a torrential rain process in north Sichuan Basin during 18 - 19 July 2005 is made and the circulation feature is analyzed. This heavy rain process attributes to the3 influence of upper and lower shear lines. The surface cold fronts and the southerly low-level jet streams are blocked by the south- west Pacific subtropical high together. The location of the heavy rain with its strength and duration can be analyzed by using the θse, the divergence of vapor flux and the divergence of the modified wet Q-vector. |
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| Keywords: | heavy rain wet Q-vector divergence diagnosis |
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