The Necessity Of Flash Flood Hazard Assessment In Sorong City, West Papua Anif Farida (a*), Febrianti Rosalina (b) , Ponisri Ponisri (c)
a, b) Agrotechnology Department, Universitas Muhammadiyah Sorong, Sorong, Indonesia
c) Agroforestry Department, Universitas Muhammadiyah Sorong, Sorong, Indonesia
Abstract
Sorong City is one of the areas in West Papua that is growing rapidly and often has floods. Many hills are mined without regard to protection of the environment and this causes the rivers to become shallow in some places. This paper aims to discuss the factors that cause flash floods and methods that can be applied to know the potential for flash floods especially in Sorong City. The method in this paper is Systematic Review with PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyses). Factors that contribute to flash floods are: extreme rain, river basin conditions such as size, shape, channel conditions, soil infiltration capacity, land cover and the occurrence of extreme flooding when two rivers unite, and the effect of human activity or intervention. The models to estimate the potential of flash floods are time area-method GIS, HBV, MARINE models, Flash Flood Monitoring Prediction (FFMP), HISD, GIS-remore sensing approach and Weather Research and Forecasting (WRF). The flash flood hazard assessment that can be applied in Sorong City is GIS approach because it is a complicated process to quantify flash floods using all the flood components.
