Ecology, Environment and Conservation Paper

SIMULATION OF FLOOD OCCURRENCE USING WEAP MODEL (CASE STUDY: WESTERN WATERSHED OF UROUMIEH LAKE)

Mohamad Kiani Moein, Saeid Shabanlou and Hosein Fathian

Abstract

In the current situation areas prone to flooding in Iran are estimated to be about 91 million hectares. In other words, 55 percent of the country was involved in the production of direct runoff that about 42 million hectares of it have medium to high capability of flood producing and considering the flood prone of Uromieh basin identifying of critical areas is necessary. In this paper we tried to provide a method that using hydrologic models determine the produced flood levels within the basin and also determine the impact of climate change on flood production. First, we divided this basin into 9 sub-basins in GIS environment and using ArcHydro tool then physical characteristics of basin and sub-basins were determined by ArcHydro and by determining of climate and land use data of required lands hydrologic simulation for sub-basin and whole basin done using WEAP model. Results show that by considering peak discharge among sub-basins in respect to output flood of watershed, we found out that A1 sub-basin has more critical situation.