2019年台风“利奇马”期间新沂河行洪分析  

Flood discharge analysis of Xinyihe River during typhoon“Lekima”in 2019

作　　者：刘炜伟[1] LIU Weiwei(Lianyungang Branch of Jiangsu Hydrological and Water Resources Survey Bureau,Lianyungang 222004)

机构地区：[1]江苏省水文水资源勘测局连云港分局,连云港222004

出　　处：《中国防汛抗旱》2020年第8期30-34,共5页China Flood & Drought Management

摘　　要：受201909号超强台风"利奇马"外围云系及冷空气共同影响,沂沭泗地区大部普降大暴雨、局部特大暴雨,受其影响,沂河发生1974年以来最大洪水。受嶂山闸开闸、嶂沭区间径流和沭河来水影响,新沂河沭阳水文站实测历史最高水位11.31 m,超历史最高水位0.55 m,最大流量5 900 m^3/s。通过分析台风"利奇马"影响期间新沂河各控制节点水位流量数据,研究新沂河行洪水位流量演变规律,分析新沂河行洪能力,在现状条件下分析新沂河洪水传播时间,为新沂河沿线水利工程精准调度提供科学支撑。Influenced by the cloud system and cold air around super typhoon"Lekima"No.201909,most of Yishusi region experienced heavy rain. Consequently,Yihe River suffered the worst flood since 1974. Affected by the opening of Zhangshan sluice,the runoff of Zhang-shu section and the inflow of Shuhe River,the measured historical maximum water level of Shuyang hydrological station of Xinyihe River is 11.31 m,which is 0.55 m higher than the historical maximum water level,and the maximum discharge is 5 900 m^3/s. Based on the analysis of the water level and flow data of the control nodes of Xinyihe River during the influence of typhoon"Lekima"No.201909,this paper studies the evolution law of flood level and flow of Xinyihe River,analyzes the flood conveying capacity of Xinyihe River,and analyzes the flood propagation time of Xinyihe River under the current conditions. This study will provide scientific support for the accurate dispatching of water conservancy projects along Xinyihe River.

关 键 词：新沂河 201909号台风“利奇马” 行洪分析 精准调度 

分 类 号：P333[天文地球—水文科学]