摘要
基于贺兰山东麓石嘴山段大武口沟、汝箕沟及所辖各站点1980—2018年6—9月逐日流量、降水资料,通过水文和气象资料相结合的方法,进行历史洪涝过程雨量分析;并结合灾害气候频率法,分析各山洪沟的山洪发生过程,建立山洪面雨量发生指标;通过多元回归方法研究大武口沟及汝箕沟面雨量的计算方法,建立动态的临界面雨量计算公式,并对该方法进行效果检验.结果表明,该方法对大武口沟及汝箕沟山洪的预警效果较好.
Based on the daily flow and precipitation data of Dawukougou and Rujigou in Shizuishan section of the eastern Helan Mountains from June to September in the flood seasons of from 1980 to 2018,the precipitation of historical flood processes was analyzed by combining hydrological and meteorological data.With disaster climate frequency method,the occurrence processes of mountain torrents in each mountain torrents gully were analyzed,and the occurrence index of mountain torrents surface rainfall was established.The calculation method of surface rainfall in Dawukou gully and Ruji gully was studied by multiple regression method,the dynamic critical surface rainfall calculation formula was established,and the effect of this method was tested.The results show that this method has good early warning effect on mountain floods in Dawukougou and Rujigou.
作者
周翠芳
陈彦虎
贾宏元
Zhou Cuifang;Chen Yanhu;Jia Hongyuan(Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions,CMA,Yinchuan 750002,China;Key Laboratory of Meteorological Disaster Preventing and Reducing in Ningxia,Yinchuan 750002,China;Shizuishan Meteorological Bureau,Shizuishan 753000,China;Ningxia Meteorological Bureau,Yinchuan 750002,China)
出处
《宁夏大学学报（自然科学版）》
CAS
2022年第4期425-428,共4页
Journal of Ningxia University(Natural Science Edition)
基金
石嘴山市科技公关计划基金资助项目(2017-406)
中国气象局旱区特色农业灾害监测预警与风险管理重点实验室指令性基金资助项目(CAMP-201919)。
关键词
山洪灾害
临界面雨量
预警指标
mountain torrent disaster
critical areal rainfall
early warning indicators
