| 伴有区域暴雨的重庆秋季连阴雨及其暴雨特征 |
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| 引用本文： | 王欢,李晶,庞玥.伴有区域暴雨的重庆秋季连阴雨及其暴雨特征[J].高原山地气象研究,2017,37(4):28-33. |
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| 作者姓名： | 王欢 李晶 庞玥 |
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| 作者单位： | 重庆市气象台, 重庆 401147 |
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| 基金项目： | 中国气象局预报员专项(CMAYBY2016-060) |
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| 摘 要： | 利用降水实测资料、1°×1°的NCEP格点再分析资料对2000年以来的伴有区域暴雨的重庆秋季连阴雨过程进行统计分析。结果表明:伴有区域暴雨的重庆秋季连阴雨过程主要发生在9月份，重庆西部地区为伴有区域暴雨的连阴雨过程的多发区；可将连阴雨期间区域暴雨就有无台风西进登陆我国分为两类，两类暴雨的影响系统的差异表现为，没有台风登陆时700hPa/850hPa的主要影响系统为切变线或者西南涡；有台风登陆时的主要影响系统则为台风倒槽；24小时变温、低层涡度、假相当位温、整层水汽通量以及比湿对连阴雨期间暴雨的预报有较好的指示意义，同样表征水汽条件的相对湿度的指示意义较差。
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| 关 键 词： | 秋季连阴雨 暴雨 |
| 收稿时间： | 2017-11-19 |
The Characteristics of Autumn Continuous Rain Accompanied by Regional Rainstorm in Chongqing |
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| Affiliation: | Chongqing Meteorological Observatory, Chongqing 401147, China |
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| Abstract: | By employing NCEP reanalysis data、daily observation data, the autumn continuous rain accompanied by regional rainstorm in Chongqing since 2000 had been diagnosed. The results showed that, the autumn continuous rain accompanied by regional rainstorm in Chongqing occurred mainlu in September, and the western region of Chongqing was a multiple occurrence area. There are two types of Regional Rainstorm in the continuous rain, he influence systems are shear line-Southwest China vortex and typhoon inverted trough.The 24h variable temperature, vorticity, potential pseudo-equivalent temperature, whole layer of water vapor flux and specific humidity had good indication to forecast. |
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