Prediksi Air Limpasan Menggunakan Model Hidrologi Agregasi (Studi Kasus pada Sub DAS Goseng)

Abstract

Hydrology aggregation model based on maximum soil water storage, actual soil water storage, overland flow and soil water storage constant. This study was conducted at Goseng sub watershed, upper Solo watershed. The model consists of two parameters such as actual water storage (Production Reservoir, PR) and change of soil water storage (Transformation Reservoir, TR). Input of PR consists of rainfall and the output consists of evapotranspiration and saturation overflow. The value of soil water constant k(t) was calculated based on the single storm at time of rainfall. Result indicated that predicted runoff statstically are not different from observed runoff based on Ttest and regression analysis.