Sahid Susanto

Estimation of Vertical Recharge of Karst Aquifer by Surface Water in Tropical Monsoon Climate

The vertical recharge was estimated by modified simple monthly water balance model developed by Van Der Beken and Byloos. 1The model assumes that groundwater quantity balance for a cell of horizontal area bounded by impervious recharge from underflow another basin because that flow is affected by geological formation of the basin. Therefore, this variable is neglected (Fig.1). The rest of the catchment is considered to be non-contributory with respect to base flow. This area can be checked by comparing base flow of a given basin with the estimated recharge.