Geographic Information System and Remote Sensing Approach with Hydrologic Rational Model for Flood Event Analysis in Jakarta

5th Geoinformation Science Symposium 2017

地球科学;计算机科学

Aditya, M.R.^1 ; Hernina, R.^1 ; Rokhmatuloh^1

Department of Geography University of Indonesia, Kampus UI Depok, 16424, Indonesia^1

关键词: Impervious surface;    Jakarta;    Land use type;    Ordinary kriging;    Rainfall infiltration;    Rainfall intensity;    Rational models;    Remote sensing approaches;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/98/1/012008/pdf
DOI  :  10.1088/1755-1315/98/1/012008

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Rapid development in Jakarta which generates more impervious surface has reduced the amount of rainfall infiltration into soil layer and increases run-off. In some events, continuous high rainfall intensity could create sudden flood in Jakarta City. This article used rainfall data of Jakarta during 10 February 2015 to compute rainfall intensity and then interpolate it with ordinary kriging technique. Spatial distribution of rainfall intensity then overlaid with run-off coefficient based on certain land use type of the study area. Peak run-off within each cell resulted from hydrologic rational model then summed for the whole study area to generate total peak run-off. For this study area, land use types consisted of 51.9 % industrial, 37.57% parks, and 10.54% residential with estimated total peak run-off 6.04 m3/sec, 0.39 m3/sec, and 0.31 m3/sec, respectively.