Estimation of Surface Runoff to Support Flood Hazards Early Warning Using Landsat 8 OLI Imagery

Abstract

This study aims to determine the estimated surface runoff in the Diro sub-watershed in Kulon Progo Regency using OLI Landsat 8 imagery. Landsat images are used to determine the type of land cover which is one of the watershed characteristics. The method used to determine the surface runoff coefficient value in the Diro sub-watershed was using the cook’s method. The parameters used to determine the value of surface runoff include vegetation density, flow density, soil type and slope. The results showed that the sub-watershed Diro has a surface coefficient value of 0.7999 and is in the high category.

Keywords

• surface runoff
• flood hazard early warning
• landsat8 oli
• diro sub-watershed