International Journal of Earth Sciences and Engineering

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Urban waterlogging refers to the seeper disaster caused by heavy or continuous precipitation that exceeds the city's drainage capacity. A heavy and focused rainfall, together with large hardening area, can make the rainwater difficult to infiltrate and easily form urban waterlogging. This article achieved the network visualization of three-dimensional (3D) scenes of city's main flooded roads based on WebGL. Owing to its a series of advantages, such as being free from browse plug-ins, acceleration by directly calling GPU and Javascript-based strong interoperability, WebGL can make the browse more smooth, the rendering more colorful and the operation more convenient and truly reconstruct the city's waterlogging scene by conducting 3D dynamic simulation on the submerging process. The combination between 3D visualization and urban rainfall and flood simulation can reproduce urban waterlogging process and thus provide a new way of investigating urban waterlogging and seeper.

Keywords

WebGL, Urban Waterlogging, Terrain Rendering, Three-Dimensional (3D) Simulation.
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