Studies on Remotesensing and Geographical Information System Applications on Coastal Geomorphological Landforms from Portonova to Coleroon River Mouth, South Arcot, Tamilnadu, East coast of India

Now days, the world scientific community is focusing their attention towards coastal area due to warming provided by the scientists involved in global warming studies, much research works are emerging in this aspect mainly to protect coastal environment and to mitigate coastal hazards. Coastal area is facing serious threads from both manmade and natural disturbances. coastal erosion, sea level variation and cyclones are the major factors that alert the coastal geomorphology the impact of the natural disturbance can be reduced by the protecting the coastal vegetation. The aim of this study is to bring out coastal geomorphological landforms from Portonoa to Coleroon river mouth, using remote sensing, GIS and field information. It is in the survey of India Toposheet No.58M/15. The study area contains three types of coastal geomorphological landforms; they are depositional, erosional and other features. The depositional features like, beach, beach ridges, cheniers, paleo barres, paleo – tidal flats, mudflats. The erosional features like Sea cliffs and other features like back waters and mangroves, creeks and deltas. A GIS database was developed and updated in order to provide access for future use and computer analysis.