Abstract: “Since the most economic-agricultural activities in areas adjacent to the river is in flood plains, including a discussion on the management of these areas is the considerable, zoning map has an important effect on flood management, The right of the river bed, and the economic feasibility of development projects, forecast, warning and rescue operations and flood insurance could be included. Using computer models and using geographic information systems incorporating GIS as well as hydraulic and hydrologic models are the common methods of floodplain zoning maps. There are a variety of different performance capabilities and access to the data required by this model, so that we have to choose the best software related to that model. In this article, we try to introduce a few well-known models for floodplain zoning maps; some of the capabilities and applications are considered by some approaches. At the end, we express the factors that are affecting the accuracy of results.”

Keywords: Computer modeling, floodplain zoning, MIKE11, HEC-RAS, GIS