Author(s): Ahmad Fikri Abdullah, Zoran Vojinovic, Vorawit Meesuk
Linked Author(s): Ahmad Fikri Abdullah
Keywords: Flood models, one-dimensional models, two-dimensional models, terrain data, urban features
Abstract: The flows in drainage networks are typically modelled with one-dimensional (1D) models. With the need to model overland flows, which may be confined to street flows, 1D pipe network models are combined with another 1D network of streets and ponds (major system). Such model is commonly referred to as 1D/1D model. Furthermore, coupling between channel/pipe network flow models can be also done with 2D flood flow models that treat the overland surface as a two-dimensional flow domain. However, there are numerous issues related to the collection and processing of surface data for urban flood modelling. The present paper discusses some of the issues related to terrain data processing and collection which can either improve or deteriorate predictive capability of numerical models. These are related to terrain data resolution and ability to detect and capture some of the typical urban features
Year: 2017