Brief discussion on flooding mapping of small/medium-sized rivers——Taking the analysis and mapping on Pingjiang section of Miluo River as an example
LI Changzhi1,2, HE Yiping3, LIU Xiaolin4, ZHANG Xiaolei1,2, HUANG Chengyu5
1. China Institute of Water Resources and Hydropower Research, Beijing 100038; 2. Research Center on Flood & Drought Disaster Reduction of the Ministry of Water Resource, Beijing 100038; 3. Pingjiang Water Resource Bureau, Pingjiang 414500; 4. Pingjiang Center of Urban Construction Investment Service, Pingjiang 414500; 5. Guoyang Engineering Consulting Co., LTD(Hunan Branch Co. Company), Yueyang 414000
Abstract：The flooding mapping of small/medium-sized rivers is an important task of national flood and drought disaster survey in China,which is of great significance for disaster mitigation for which specific technical requirements to be made. Taking the Miluo River as an example, combining the content of technical requirements, the process of data collection and processing, flood analysis, flooding mapping, and outputs compilation was introduced. The results show that: the existing data, free public data, and technical means should be fully utilized to solve the river geometry data issue, meanwhile review and correction should also be conducted carefully; the selection of flood analysis options depends on the river geometry data, hydrological data and local flood simulation technical conditions; the spatial data of the outputs should be strictly processed to the specified coordinate and projection system specified in the technical reference, and enough attention should be paid to the administrative of transboundary rivers at the basin level in advance to ensure the smooth and successful integration of all outputs.
李昌志, 何益平, 刘校林, 张晓蕾, 黄成宇. 中小河流洪水淹没图编制简谈——以汨罗江平江段洪水淹没分析与制图为例[J]. 中国防汛抗旱, 2022, 32(7): 41-48.
LI Changzhi, HE Yiping, LIU Xiaolin, ZHANG Xiaolei, HUANG Chengyu. Brief discussion on flooding mapping of small/medium-sized rivers——Taking the analysis and mapping on Pingjiang section of Miluo River as an example. journal1, 2022, 32(7): 41-48.
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2022, Vol. 32 
