Why the Flood Always Return to Jakarta; Historical Land Use Changes and Geo Environmental Analysis

Flooding always return to Jakarta when the rainy seasons is coming. Many efforts have been done by the Provincial Government to overcome the issue. This study attempts to describe the reasons why the flood always returns through the historical land use changes and geo-environmental analysis of Jakarta Megapolitan. We employed remotely-sensed data; optical sensor for urban land use extraction information and radar sensor for geo-hydrology extraction variables. GRASS GIS open source software was used for the imagery processing. It is concluded that the poor management of land use transformation, lack management of streamsand basins, were lead to severe flood. Basins and streams extraction also shown that Jakarta is river`s city, where the water will always flow into the city. Revitalization of stream’s buffer, minor streams, and basin management are priorities to avoid more suffered from floods