A preliminary comparison of hydrodynamic approaches for flood inundation modeling of urban areas in Jakarta Ciliwung river basin

This paper addresses on the numerical modeling approaches for flood inundation in urban areas. Decisive strategy to choose between 1D, 2D or even a hybrid 1D-2D model is more than important to optimize flood inundation analyses. To find cost effective yet robust and accurate model has been our prior...

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Bibliographic Details
Main Authors: Rojali, Aditia, Budiaji, Abdul Somat, Pribadi, Yudhistira Satya, Fatria, Dita, Hadi, Tri Wahyu
Format: Conference Proceeding
Language:English
Subjects:
Cost analysis
Flooding
Mathematical models
River basins
Robustness (mathematics)
Two dimensional models
Urban areas
Water levels
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Summary:This paper addresses on the numerical modeling approaches for flood inundation in urban areas. Decisive strategy to choose between 1D, 2D or even a hybrid 1D-2D model is more than important to optimize flood inundation analyses. To find cost effective yet robust and accurate model has been our priority and motivation in the absence of available High Performance Computing facilities. The application of 1D, 1D/2D and full 2D modeling approach to river flood study in Jakarta Ciliwung river basin, and a comparison of approaches benchmarked for the inundation study are presented. This study demonstrate the successful use of 1D/2D and 2D system to model Jakarta Ciliwung river basin in terms of inundation results and computational aspect. The findings of the study provide an interesting comparison between modeling approaches, HEC-RAS 1D, 1D-2D, 2D, and ANUGA when benchmarked to the Manggarai water level measurement.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4987099