National assessment of shoreline change: Puducherry coast
This report on the Puducherry Coast represents long-term shoreline change for a period of 38 years from 1972 - 2010. It summarizes historical changes in shoreline, both accretion and erosion, but emphasizes the erosion hazard because of its impacts on natural resources and the economy.
This report on the Puducherry Coast represents long-term shoreline change for a period of 38 years from 1972 - 2010. The report summarizes the methods of analysis, interpretation of results, provides explanations regarding long-term trends and zones of change. Shoreline change evaluations are based on comparing five historical shorelines digitized from satellite maps for the above time period, with a recent shoreline derived from LISS III images and limited field surveys. The historical shorelines represent the following periods: 1972 (Survey of India toposheet), satellite imageries of 1990, 2000, 2006 and 2010. Primary goal of this study is to develop standardized methods for mapping and analyzing shoreline movement so that internally consistent updates can periodically be made to record shoreline erosion and accretion.