The Utilization of Satellite Imagery Data to Predict Hydrology Characteristics in Dodokan Watershed

AbstractSatellite imagery has been widely used in many fields, including watershed management, environmental management, and disaster mitigation. In watershed management field, this dataset provides the land use map that is an input for watershed management planning and prediction of hydrology characteristics of a watershed. It can be done using hydrology model that requires detailed parameters such as: land use type, soil characteristics, topography, and climatic data. This research was conducted in Dodokan Watershed at Nusa Tenggara Barat Province with area of 54,279.25ha. The hydrology characteristics of Dodokan watershed was predicted using the Soil and Water Assessment Tool (SWAT) model. Based on the analysis of three years rainfall datasets (2010-2012), land use map (2012) and soil characteristics data (2014) as well as average of curve number of 75.03, the highest surface runoff volume was 35.18mm with the highest rainfall of 52.39mm and runoff coefficient is 0.33