GIS-based Food Hazard Mapping: A case study in Krishnai river basin, India
- 1Cotton College State University, Guwahati 781001, India
- 2Rtd. Dept. of Geography, Cotton College, Guwahati 781001, India
Res. J. Recent Sci., Volume 5, Issue (ISC-2015), Pages 50-59, -----Select----,2 (2016)
Mapping of flood hazard is an important component for appropriate land use planning in flood-prone areas. The creation of flood hazard maps would promote greater awareness about the risk of flooding. Taking Krishnai river basin of Assam as an example and using available data from government agencies, a composite hazard index has been devised incorporating variables like ?ood frequency, drainage density, slope, population density, access to potable water, and availability of elevated area and maximum risk zones were mapped accordingly. Therefore, in the present paper an attempt has been made with an objective to produce flood hazard map based on climate, geomorphology, hydrology for flood preparedness, and emergency response and propose an integrated flood management (IFM) that can be used to promote sustainable flood risk management measures. Geographic Information Systems (GIS) are frequently used to prepare flood hazard maps. It provides an effective way of assembling information from different maps and digital elevation models. The extent of flooding can be calculated by comparing local elevations with extreme water levels using GIS. It can support planning and development by identifying high risk locations and steering development away from these areas.
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