Change detection in coastal feature of the Krusadai Island, GoM Biosphere Reserve using L5-TM and L7-ETM+ images

Abstract

Remote sensing is a technique by which any object can be studied without touching the same. Remote sensing techniques and satellite images are used to map different marine environments for example, coral reef, micro algal bloom and mangrove forests etc. to study the climate change and ecological impacts on it. In this present study, the changes of coastal line as well as coastal vegetation of the Krusadai Island, situated within Gulf of Mannar, a Biosphere have been mapped by using digital images of L5TM and L7ETM+ sensors and the detection of changed occurred between 1988 and 2000 have been measured. The accuracy level is found remarkable.