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The result shows that the maximum and minimum inundated area for the present study is in the year 20 respectively. Steady flow analysis is carried out using HEC-RAS to detect the change in flooding pattern. The data products such as SRTM DEM data and the discharge data are of Central Water Commission (CWC), Bengaluru for 21years (1998-2018).
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In the present study an attempt has been made to analyze the flood inundation boundary of the downstream of T.Narsipura, discharge gauging station for a stretch of 37.78 km which is located in the upper Cauvery basin, Karnataka with an integrated approach of ARC-GIS and HEC-RAS.
#USE HEC RAS SOFTWARE SOFTWARE#
For flood hazard map GIS software Arc GIS and HEC-Geo RAS as well as hydraulic software HEC-RAS are used. The central focus in this field revolves delineation of flood zones and preparation of flood hazard maps for the vulnerable areas. Army Corps of Engineers Hydrologic Engineering Centers River Analysis System (HEC-RAS) hydraulic model and Remote Sensing(RS) technology along with Geographic Information System (GIS) have become the key tools for flood monitoring in recent years. Professor Department of Civil EngineeringĪbstract- Flood is a natural phenomenon which has the capacity of destroying the natural resources, lives and environment hydraulic modeling and Flood Inundation Mapping (FIM) are to be carried to predict important information from a flood event including the extent of inundation and water surface elevations at specific locations. UVCE Bangalore University, Jnanabharathi Bengaluru, 560056 Post Graduate Student, Department of Civil Engineering Analysis of Steady Flow using HEC-RAS and GIS Techniques