Multi Temporal Assessment of Shoreline Changes using Geoinformatics in Muthupet Lagoon, Tamil Nadu, India
Journal Title: International Journal of Environment, Ecology, Family and Urban Studies (IJEEFUS) - Year 2017, Vol 7, Issue 6
Abstract
Coastal area which is mostly defined as the shoreline is the physical interface of land and water. This physical interface is very much dynamic in nature due to the interference of the human population as they provide economic and social security to the coastal habitations. Tamil Nadu, which occupies most of the coastal areas in. e almost 1000 kms faces lots of threats and disturbances due to natural and anthropogenic interventions. Rapid urbanization, industrialization, sand and coral mining are some of the intervening agents that contribute to coastal degradation. Any change in the coastal environs causes a great impact on the economic and social development. The natural and anthropogenic activities play a major role in triggering erosion and accretion of the coastal ecosystem. In the current study the shoreline change detection was carried out using the Digital Shoreline Analysis System (DSAS). Linear Regression (LRR) and End Point Rate (EPR) techniques were used to study the rate of shoreline change. The ratio between the distance of shoreline change and the time between the earliest and latest measurements at each transect was found to give the End Point Rate (EPR). From the result, it was found that the 529th transect showed a drastic change of more than 800m change which is the highest change recorded. 430th transect and 826th transect also showed a change in shoreline of more than 700m. This is found to be a moderate change.
Authors and Affiliations
Annaidasan. K, Narmada. K
Keywords
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