URBAN INTRINSIC PROCESS AND ITS APPLICATION IN SPATIAL DATABASE UNDER DIFFERENT RAIN CONDITIONS BASED ON GIS

文献类型： 外文期刊

第一作者： Yin, Tianhe

作者： Yin, Tianhe;Huang, Qiting;Qin, Zelin;Wang, Chao

作者机构：

关键词： GIS technology; urban rainfall; waterlogging simulation; database

期刊名称：FRESENIUS ENVIRONMENTAL BULLETIN （ 影响因子：0.489； 五年影响因子：0.479 ）

ISSN： 1018-4619

年卷期： 2020 年 29 卷 4A 期

页码：

收录情况： SCI

摘要： According to meteorology, hydrology, water conservancy and other professional knowledge, using the spatial analysis technology of GIS, combining the urban spatial database and mathematical calculation model and the empirical formula of urban rainstorm intensity, the urban waterlogging disaster analysis model is established. Based on the technology of urban waterlogging model, a mathematical model of rainstorm waterlogging in Pudong District was established. At the same time, the model grid generalization model and calculation model are improved, and the urban river network, road network, pipeline network and community computing grid are divided into layers to form a zoning and multi-dimensional waterlogging calculation model. The model is the basis of calculation and Simulation of urban waterlogging and flooding. It can simulate and predict the characteristic data of urban waterlogging disasters according to the distribution of urban rainfall, such as spatial distribution, depth distribution, submerged area and submerged time of waterlogging and flooding. The simulation results can provide a basis for disaster prevention and mitigation departments to formulate disaster prevention and mitigation measures.

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