Estimation of flood environmental effects using flood zone mapping techniques in Halilrood Kerman, Iran

High flood occurrences with large environmental damages have a growing trend in iran. dynamic movements ofwater during a flood cause different environmental damages in geographical areas with different characteristicssuch as topographic conditions. in general, environmental effects and damages caused by a flood in an area canbe investigated from different points of view. the current essay is aiming at detecting environmental effects offlood occurrences in halilrood catchment area of kerman province in iran using flood zone mapping techniques.the intended flood zone map was introduced in four steps. steps 1 to 3 pave the way to calculate and estimateflood zone map in the understudy area while step 4 determines the estimation of environmental effects of floodoccurrence. based on our studies, wide range of accuracy for estimating the environmental effects of floodoccurrence was introduced by using of flood zone mapping techniques. moreover, it was identified that theexistence of jiroft dam in the study area can decrease flood zone from 260 hectares to 225 hectares and alsoit can decrease 20% of flood peak intensity. as a result, 14% of flood zone in the study area can be savedenvironmentally.