Flood Defense In Bekasi City, Indonesia
Author(s)
T. Kadri
Abstract
Bekasi is a development city near Jakarta and is the capital city of Indonesia. The
total population of Bekasi has reached 1.8 million (2003) with a population
density of about 8.595 people per square kilometer and an area of about 21.049
ha. The growing population and business activities have caused a tremendous
conversion of agricultural land for houses, offices industrial parks, etc. This
changing land use is increasing the run-off coefficient, which in turn is causing
floods in the rainy seasons.
To manage and reduce the flood risks, planners and decision makers are in
need of accurate information on the spatial distribution, magnitude and depth of
flooding, and on the land use affected by it. Integration between hydrologic
modeling and a Geographic Information System (GIS) has exhibited advantages
for flood defense. This technology allows storage of the information and
improves information accessibility. In terms of flood defense, GIS provides a
contribution for data display, storage and retrieval, site selection, impact
assessment, and modeling.
Keywords: GIS modeling, hydrological modeling, flood defense.
1 Introduction
Over recent years, Bekasi Town has been overwhelmed by floods that cause
billions of rupiah of damage in financial terms, as well as material losses to the
people who live along the river bank of the Bekasi Hulu River. The first flood
catastrophe happened in the year 2002, then the same occurred in the year 2005
and then again in the first quarter of 2007.
The floods in Bekasi are getting bigger, with rainfall of 250 mm in 2002 that
caused a river discharge in the Bekasi dam of 578.6 m3/s. Even with less rainfall,
about 127 mm in 2005, the river discharge of 545 m3/s almost reached the 2002
Keywords
GIS modeling, hydrological modeling, flood defense.
Related Book
Other papers in this volume
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