Simulation and analysis of urban storm waterlogging based on 3D GIS

XUE Fengchang1,2 HUANG Minmin1 TANG Buxing1 QIAN Hongliang1 GENG Huantong2

(1.School of Geography and Remote Sensing, Nanjing University of Information Science and Technology, Nanjing, China 210044)
(2.Key Laboratory of Meteorological Disaster, Ministry of Education, Nanjing University of Information Science and Technology, Nanjing, China 210044)

【Abstract】Since traditional urban storm waterlogging simulation based on two-dimensional GIS cannot show the dynamic evolution of the flood disaster in three-dimensional plot, the method of rainstorm waterlogging disaster simulation based on 3D GIS was proposed. This method integrated techniques of meticulous modeling and stretching modeling, through the regional DEM construction, road surface modeling, building modeling, terrain matching to build urban three-dimensional model of the study area. The D8 algorithm was improved to carry out the catchment division, and the method of runoff coefficient was applied to carry out runoff calculation. The results showed that this method could effectively achieve the calculation of rainstorm waterlogging depth, water depth range as well as the waterlogging depth, the affected houses, the affected roads visualization in the three-dimensional scene.

【Keywords】 3D GIS; storm waterlogging; simulation;

【DOI】

【Funds】 Jiangsu Provincial Natural Science Foundation (BK20151458) Post-doctoral Research Foundation of Jiangsu Province (1101024B) Urban Meteorological Science Research Foundation of Beijing Urban Meteorological Research Institute of China Meteorological Administration (IUMKY & UMRF201103)

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(Translated by LU GP)

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This Article

ISSN:1009-2307

CN: 11-4415/P

Vol 42, No. 02, Pages 53-58+64

February 2017

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Article Outline

Abstract

  • 0 Introduction
  • 1 Overview of research area and data source
  • 2 Study method
  • 3 Simulation of storm waterlogging based on 3D scene
  • 4 Conclusions
  • References