Volume : III, Issue : III, March - 2014

Delineation of Flood Hazard Zones Using Geomorphological Features in S.p.s. Nellore District: A Study Based on Remote Sensing And Gis

Dr. D. Chandrasekhar Redd, Mrs. R. Syamala

Abstract :

The Geomorphological studies through Spatial information technologies play a significant role in flood disaster assessment, preparedness, relief, rescue and management. The present study is attempted with the objective of delineating flood hazard zones by interpreting the landforms from the satellite geocoded data of IRS–IC, LISS III imageries and is correlated with the Survey of India Toposheets. The S.P.S. Nellore district of Andhra Pradesh is lying adjacent to Bay of Bengal with a lengthy coastline of 165 kms is not only affected by tropical cyclones, depressions and storm surges but also severely affected due to floods. Due to frequent recurrence of severe cyclonic storms and floods causes greater damages to agricultural crops, settlements, communications etc., resulting into totally upsetting the ecological balance and socio–economic conditions of the people. The landforms identified and interpreted from the satellite data has been integrated with analysed data of RADARSAT–2 images of flood inundated areas to delineate the flood hazard zones in S.P.S. Nellore district. The individual flood events and subsequent damages are integrated with the geomorphological features to arrive flood hazard zones in the district. The flood hazard zones are identified and categorized into two zones i.e., 1. Areas highly prone to floods and 2. Areas moderately prone to floods. The flood hazard zone map is of immense use for effective implementation of prevention measures to reduce the intensity of disasters caused due to floods in the district.

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Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

Dr. D. Chandrasekhar Redd, Mrs. R. SYAMALA Delineation of Flood Hazard Zones Using Geomorphological Features in S.p.s. Nellore District: A Study Based on Remote Sensing And Gis International Journal of Scientific Research, Vol.III, Issue.III March 2014


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