Open Access Journal

ISSN : 2456-1304 (Online)

International Journal of Engineering Research in Electronics and Communication Engineering(IJERECE)

Monthly Journal for Electronics and Communication Engineering

Open Access Journal

International Journal of Science Engineering and Management (IJSEM)

Monthly Journal for Science Engineering and Management

ISSN : 2456-1304 (Online)

Hazard and Vulnerability in Urban Flood Risk Mapping: A case study of Chennai city, India

Author : Satarupa Rakshit 1 Zareena Begum Irfan 2

Date of Publication :30th December 2021

Abstract: Chennai has been the center of trade and commerce from ages. But with the recent high urban growth rates the damages have outweighed the gains. The city is witnessing floods very frequently and this has encouraged us to take up the study to create the risk zones within the city. The present study aims to generate the hazard, vulnerability and the risk profile maps of the city at ward level using remote sensing and GIS techniques. The analysis shows that land use land cover change caused by urban expansion increased the flood risks of Chennai. Furthermore, the authors observed that urbanization increases the exposure to flooding and flood depth in the study area which plays a greater role in flood risk. Urbanization and changes in the land use land cover changes leads to increase in flood risk and exposure. The land development generally occurs by infilling in the natural drainage and vegetation prevailing in the region. This leads to water clogging and man-made flooding during high intensity short duration rainfall. So in such situations proper urban planning is essential which considers proper drainage system for channelizing excess water flow.

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