Flood hazards under changing climate: applying an analytical hierarchy process in the Mazam-Watrak River Basin, India

Abstract In this study, the coupling of analytical hierarchy process (AHP) and geographical information system (GIS) was used to assess flood hazards. Spatial analysis in GIS environment has been applied for estimation hazard zones which five relevant physical factors have selected, namely rainfall amount, slope, elevation, drainage density, land use. The amount use are subjected changes over a time horizon, an attempt is made delineate under changing climate, i.e., delineating base climate change scenarios. proposed method Mazam-Watrak River basin state Gujarat, India data span 1961–2016. It concluded that proliferate downstream eastern middle reaches very high category results obtained from AHP validated through observed susceptible area basin.