Spatial Pattern Flood in Landform Ciliwung Watershed

Abstract

The study of flood prone area was conducted In Cilwung Watershed (DKI Jakarta and West Java). The aim of this research is to study the spatial distribution of potential and actual of flood prone area; The flood wos studied from the geographic point of view using spatial approach. The collection of the physical condition of landform in DKI Jakarta and west Java data prone were conducted through interpretation of the topographic mop I RBI mop and geological map. The flood data were obtained by survey and secondary data from Kimproswil (Public Work) of DKI Jakarta and west Java Province. Do to of rainfall were obtained from BMKG and land use data were obtained from citra image (Landsat). The analysis of the causal factors and distribution of flooding was made spatially and temporally using Geographic Information System (GIS}. The result of the study shaw that actual of flood prone area In the north, west and east of Jakarta lowland and left-right Cilfwung river {middle-upland) both in flood plain, coastal alluvial plain, and alluvial plain; while the flood potential area on the slope Is found flat and steep at afluvial fan, alluvial plain, flood plain, and coastal alluvial plain In Qfiwung Watershed.