| 山西省汛期短历时强降水特征 |
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| 引用本文： | 周雅清,胡桃花,王弢,赵酉龙.山西省汛期短历时强降水特征[J].新疆气象,2021,15(6):40-46. |
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| 作者姓名： | 周雅清 胡桃花 王弢 赵酉龙 |
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| 作者单位： | 山西省晋中市气象局,,山西省晋中市气象局,山西省晋中市气象局 |
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| 基金项目： | 山西省重点研发计划项目（201703D321038）山西省气象局面上项目（SXKMSQH20185132） |
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| 摘 要： | 山西地形复杂,汛期降水集中,短时强降水易引发地质灾害及城市内涝,是制约社会经济发展和人民安居的重要因素。本文通过分析山西省2011~2016年290个高密度自动气象站逐时降水资料,结合本地强降水预警业务规定,根据致灾风险程度将短历时强降水分为四级,全面细致分析了各级强降水的时空变化特征,对强降水的精细化预报有指示意义。结果表明：短时强降水主要受纬度和地形影响,各级强降水的累计降水量和降水小时数大值区一般沿太行山脉和吕梁山脉展布;短时强降水在每日15～18时高发,到了夜间20～23时,出现第二峰值;城区一般性强降水比乡村区域偏多偏强。
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| 关 键 词： | 短历时强降水 时空分布 城市化影响 山西省 |
| 收稿时间： | 2020/9/16 0:00:00 |
| 修稿时间： | 2020/12/9 0:00:00 |
Characteristics of short duration heavy rainfall during flood season in Shanxi Province |
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| ZHOU Ya-qing,HU Tao-hu,WANG Tao and ZHAO You-Long.Characteristics of short duration heavy rainfall during flood season in Shanxi Province[J].Bimonthly of Xinjiang Meteorology,2021,15(6):40-46. |
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| Authors: | ZHOU Ya-qing HU Tao-hu WANG Tao and ZHAO You-Long |
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| Institution: | Jin Zhong Meteorological Bureau of Shanxi Province,Jin zhong,,Jin Zhong Meteorological Bureau of Shanxi Province,Jin zhong,Jin Zhong Meteorological Bureau of Shanxi Province,Jin zhong |
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| Abstract: | Shanxi Province has complicated terrain and concentrated precipitation in flood season. The short duration heavy rainfall, which is prone to cause geological disasters and urban waterlogging, is an important factor impacting the social and economic development and people"s life. Based on the analysis of hourly precipitation data of 290 high-density automatic weather stations in Shanxi Province from 2011 to 2016, combined with the regulations of early warning service of the heavy precipitation in the local area, this paper divides the short-term heavy precipitation into four levels according to the degree of disaster risk, analyzes the spatial-temporal variation characteristics of the heavy precipitation at all levels comprehensively, and has an instructive significance for the fine forecast of heavy rainfall. The results show that the short-term severe precipitation is mainly affected by latitude and topography, and the areas with more cumulative precipitation and longer precipitation hours at all levels are generally distributed along Taihang Mountains and Luliang Mountains. The short-term severe precipitation occurs frequently during 15:00 to 18:00 every day, and the second peak appears at 20:00 to 23:00 in the night. The general heavy precipitation in urban areas is more and stronger than that in rural areas. |
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| Keywords: | short duration heavy rainfall spatial and temporal distribution urbanization influence Shanxi Province |
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