Journal of Marine Science: Research & Development
Open Access

Abstract

Coast is unique environment in which atmosphere, hydrosphere and lithosphere contact each other. Because of dynamic interaction between ocean and land coastal zone are most vulnerable for land use changes in this rapid industrialization and urbanization epoch. Changes in land use caused due to natural phenomena like waves, tides, currents, winds in addition to anthropogenic activities. In this paper an attempt has been made to study coast line changes in terms of erosion, accretion, inundation due to sea level and storm surge etc by using Remote Sensing and GIS for Karnataka coast. Coast line detection is critical in coastal zone application, shifting of coast line caused by natural or anthropogenic forces such as construction of artificial structure ports and harbor leads to changes in coastal zone and its environment. Karnataka’s coast line which is also called Karavali stretches extends over a length of 320 kilometers from Mangalore in Dhakshin kannada district to Karwar in Uttara Kannada district. The time scale on which the coast line of Karnataka coast has been studied from 1984-2014. LANDSAT satellite data which has been acquired from United State Geological Survey (USGS) have been used in this study to maintain the gaps of ten years. Also Digital Elevation Model (DEM) of study area collected from USGS. Change detection was performed through Digital Image Processing (DIP) techniques and classification algorithms. A variety of procedures for change detection based on comparison of multi temporal LANDSAT data have been developed. Accurate detection and monitoring of coast line of Karnataka assumes its importance because of high productivity of its ecosystem, concentration of population, exploitation of natural resources, industrial and port development, discharge of waste effluents and increased tourism activities.

Biography

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