Abstract
This research is aimed to apply remote sensing and GIS technologies to monitor shoreline changes and assess erosion processes in Tien and Hau riverbanks of the period from 1989 to 2017. The methodology was applied LANDSAT time-series combined with normalized difference water index to extract shoreline and GIS methods to monitor shoreline changes during 30 years. The research results showed that the total area of erosion is 14,685.83 ha mainly in two provinces of An Giang at 3,146.94 ha (21.43% total erosion area) and Dong Thap at 3,787.68 ha (25.79% total erosion area). The erosion rate in major provinces is from high to very high levels and almost focus on An Giang province about 381.97 ha per year in the period of the year from 2000 to 2005. The accuracy assessment of classification imagery was assessed with overall accuracy (T) from 78.8 to 85.7 and Kappa coefficient (K) from 0.58 to 0.71 in Tien and Hau riverbanks.
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