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Geospatial Techniques Essay

1271 Words6 Pages

Abstract. Geospatial technique has been widely used for diversified applications such mapping, monitoring, planning etc both for large and small area. Geospatial techniques include ground surveying, aerial photogrammetry, remote sensing and geographical information system (GIS). In this study, geospatial technique is used for assessment of river bank of Sungai Kilim, Langkawi, Kedah. It is one of the main tourist attractions in Malaysia with UNESCO recognition since 2006 as Kilim Geoforest Park. It is well known as nature reserve that consist of various amazing flora and fauna in the mangrove area. This area is now under the threat of significant river bank erosion caused by intensification of tourism that visited this wonderful mangrove area. In this area, the tourists hired boat to visit the surrounding area. However, there are too many boats used, many trips and uncontrolled speed boat that caused river erosion. The aim of this research is to assess river bank erosion using remote sensing image and GIS tools in analyzing the impact that caused river erosion by the tourist speed boat. In order to determine the rate of changes of river erosion occurred along the river bank, geospatial techniques are used to calculate the statistical analysis of the rate of changes. Digital …show more content…

DSAS introduced numerous statistical analysis based on the rate of change of river bank. In this paper, there are two main statistical analyses were used which is Net Shoreline Movement (NSM) and End Point Rate (EPR). The distance in between oldest and the youngest shoreline for each transect are calculated as NSM, meanwhile EPR is a product of dividing the NSM by the number of years elapsed between the two shoreline, negative NSM or EPR indicate erosion while positive indicate accretion

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