Development of Infiltration Map Using Geographical Information System Based on Ground Test in Cisadane Watershed Indonesia

Abstract

Abstract Infiltration is one of the watershed parameters that are essential for integrated water resources management. Infiltration can be measured directly by a ground test such as using a double infiltrometer. But for the very large watersheds, the ground test methods take a lot of time, require a lot of skilled manpower, and cost. Geographical information systems (GIS) and remote sensing applications have been developed and used in various fields such as water resources, and produce good and fairly accurate results. The present study aims to develop an infiltration map based on a limited point of survey using GIS. This study uses the Cisadane watershed in Indonesia as the case study with an area of 154547 ha. Furthermore, it will be compared with the potential recharge zone map that has been generated from previous research. The resulting map of infiltration generated by GIS with a limited point of the survey is quite close to the potential recharge zone map using the weighted method with watershed physical and hydrological factors.