SHIFTING OF DA RANG RIVER MOUTH AND ITS RELATIONSHIP WITH EROSION ON ADJACENT SANDY COAST

Abstract

 Phenomenon of accretion and erosion at the Darang River mouth has been observed to be severe for a long term. Based on Landsat images, the long-term evolution of this area from 1988 until now has been raised to discuss. Shoreline variation around the river mouth has happened in an unpredictable way; indeed, the areas adjacent to the river opening have much changeable while the areas far from the river mouth have been seen to have minor change. This study applies even-odd function method to analyze the variation of shoreline at the Darang River mouth. The formation of both sides of the river mouth varied consecutively in the period from 1988-2015.