| 一次大暴雨预报偏差原因分析 |
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| 引用本文： | 田苹,王桂春,李绍云,叶泓麟.一次大暴雨预报偏差原因分析[J].安徽农业科学,2010,38(33):18891-18893. |
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| 作者姓名： | 田苹 王桂春 李绍云 叶泓麟 |
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| 作者单位： | [1]辽宁省台安县气象局,辽宁台安114100 [2]辽宁省大连市金州区气象局,辽宁大连116100 |
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| 摘 要： | 利用常规气象资料,从天气形势、雷达回波、卫星云图、数值预报对2010年7月20日台安地区大暴雨过程强度差异的原因进行分析。结果表明,这次降水是由西南涡、高空槽、切变线、副高、低空急流共同作用造成的。强度与实况差异的主要原因,日本数值预报形势预报量级偏小,水汽输送分析不足。
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| 关 键 词： | 大暴雨 西南涡 副高 低空急流 |
Analysis on the Cause of a Rainstorm Forecast Deviation |
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| Institution: | TIAN Ping et al (Meteorological Bureau in Taian County, Liaoning Province, Tai＇an, Liaoning 114100) |
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| Abstract: | By using conventional meteorological data,the analysis on the cause of the intensity differences during rainstorm process in Tai'an areas on July 20,2010 was carried out based on the weather situation,radar echo,satellite cloud image and numerical prediction.The results showed that the precipitation was caused by the joint action of southwest vortex,upper trough,shear line,subtropical high and low-level jet stream.The main reasons of the differences between the intensity and the actual situation were: the forecast grade of Japanese numerical prediction was smaller and the analysis of water vapour transport was insufficient. |
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| Keywords: | Rainstorm Southwest vortex Subtropical high Low-level jet stream |
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