GEO-SPATIAL TECHNOLOGIES IN SHORELINE ANALYSIS, VARIABILITY AND EROSION
Journal: International Journal of Civil Engineering and Technology (IJCIET) (Vol.6, No. 11)Publication Date: 2015-11-25
Authors : K. V. SivaKumar Babu; G. Bogayya Naidu; V. Srinivasulu;
Page : 76-88
Keywords : Shoreline Change; Shoreline E Mapping; Shoreline Analysis; Coastal Accretion-Erosion; Remote Sensing; Geographic Information System; GPS; Image Analysis;
Abstract
Analysis of shoreline variability and shoreline erosion-accretion trends is fundamental to a broad range of investigations undertaken by coastal scientists, coastal engineers, and coastal managers. Though strictly defined as the intersection of water and land surfaces, for practical purposes, the dynamic nature of this boundary and its dependence on the temporal and spatial scale at which it is being considered results in the use of a range of shoreline indicators. These proxies are generally one of two types: either a feature that is visibly discernible in coastal imagery (e.g., high-water line [HWL]) or the intersection of a tidal datum with the coastal profile (e.g., mean high water [MHW]). Recently, a third category of shoreline indicator has begun to be reported in the literature, based on the application of image-processing techniques to extract proxy shoreline features from digital coastal images that are not necessarily visible to the human eye.
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