A Comprehensive Mapping and Analysis of Diminishing Water bodies in Chennai Metropolitan: A Multidisciplinary Remote Sensing and GIS based Approach

The primary aim of this study is to examine the behaviour of water body surface levels in the vicinity of Chennai, Tamil Nadu. For the past two decades (2000-2020) Chennai lakes have changed in its water body due to a large number of anthropogenic activities. These water bodies act as reservoirs that depend on the South-West Monsoon showers. In the past two decades, lakes have undergone shrinkage due to various developments that have been computed using Remote Sensing and GIS techniques coupled with field validation. A set of images that were acquired from Google Earth images for the past three decades are employed to map the changes in surface area of the water bodies. In this present study, fifty water bodies have been taken from in and around Chennai to analyse the areal changes of the water bodies. With the use of Google Earth Pro, the fifty water bodies for the past two decades i.e. (2000, 2010 & 2020) are mapped. The mapping of corresponding meta data was used to analyze the condition of these water bodies at present stage. The need for revival and reclamation is mentioned by analyzing the results.