连云港地区历史典型暴雨致灾相关分析  

Correlation Analysis of Historical Typical Torrential Rain Disasters in Lianyungang

作　　者：程建敏[1] 刘沂轩[1] 乐峰[1] 李刚[1] 王德维[1] CHENG Jianmin;LIU Yixuan;LE Feng;LI Gang;WANG Dewei(Lianyungang Branch of Jiangsu Hydrology and Water Resource Survey Bureau,Lianyungang 222004,China)

机构地区：[1]江苏省水文水资源勘测局连云港分局,江苏连云港222004

出　　处：《水文》2023年第5期108-112,共5页Journal of China Hydrology

摘　　要：为探究连云港地区历史典型暴雨与致灾程度之间的关系,根据1956—2018年实测降雨资料,在对连云港地区降雨时空分布规律分析的基础上,选取连云港地区典型年份典型暴雨场次,并对时空分布、暴雨强度、受灾程度等进行量化分析,运用灰色关联分析法,定量分析暴雨时空变化与造成的洪水灾害程度之间的关系。结果表明:连云港地区暴雨受灾程度受降雨量、强度、前期影响雨量、时空分布特点共同影响。影响程度依次为:空间变差系数>时间变差系数>最大雨强>前期影响雨量>次降雨量。通过相关关系的量化以期为当地防洪措施及水灾害防御措施提供参考。In order to explore the relationship between historical typical torrential rain and disaster severity in Lianyungang,based on the observed rainfall data from 1956 to 2018,the spatial and temporal distribution of rainfall in the Lianyungang region was analyzed,the typical rainstorm events in a typical year in the Lianyungang region were selected and the spatial and temporal dis‐tribution,rainstorm intensity and disaster severity were analyzed quantitatively,the relationship between the spatio-temporal varia‐tion of quantitative analysis rainstorm and the degree of flood disasters caused by it was studied.The results show that the disas‐ter degree of rainstorm in Lianyungang was influenced by the rainfall amount,intensity,pre-impact rainfall amount and the charac‐teristics of spatio-temporal distribution.The order of influence degree is:spacial variation coefficient>temporal variation coefficient>maximum rainfall intensity>antecedent rainfall>event-based rainfall.Through the quantification of the correlation,it is expected to pro‐vide references for local flood control measures and flood disaster prevention measures.

关 键 词：典型暴雨 降雨情势 受灾程度 量化分析 

分 类 号：P33[天文地球—水文科学] TV11[水利工程—水文学及水资源]