典型多水源平原区暴雨洪水特征及相关性分析
Characteristics and Correlation Analysis of Rainstorm and Flood in Typical Multi-Water Source Plain Area

新沭河下游区域有蔷薇河、范河、石安河等洪水来源，同时接纳沂沭河闸坝调控分洪洪水，为典型多水源平原区，所纳洪水均通过三洋港闸泄洪入海。本文对新沭河下游区域洪水来源分为7个区域，对近10年发生的8场暴雨洪水过程特征进行分析，建立暴雨洪水数据集，计算各洪水来源区的暴雨洪水关系。沂沭区暴雨与三洋港闸上游水位具有较好的正相关，沂沭区暴雨对新沭河下游洪水具有控制性作用，三洋港闸调度运行应密切关注沂沭区暴雨状况。该数据集构建方法可作为雨洪大数据分析模拟计算研究的技术基础。
The downstream area of the Xinshu River has flood sources such as the Qiangwei River, Fan River, and Shi’an River, and also accepts flood control by the Yishu River gate dam, making it a typical multi water source plain area; the Xinshu River discharges all its floods into the sea through the Sanyang Port Sluice. The flood source is divided into seven regions. The main characteristics of rainstorm flood are used to an-alyze the eight rainstorm flood processes in recent 10 years,. This paper establishes the rainstorm flood data set and calculates the relationship between the rainstorm and flood in each flood source area. The rainstorm volume in Yishu District has a good positive correlation with the water level in the upstream of Sanyang Port Gate, which has a controlling effect on the flood in the downstream of Xinshu River. The rain-storm situation in Yishu District should be paid close attention to during the operation of Sanyang Port Gate. The data set construction method plays a fundamental role in the analysis and simulation of flood and rainstorm big data.