Assessment of land cover changes on Subi Reef in Truong Sa Islands, Vietnam using multi-temporal Landsat images

Abstract

In this article, the author proposes that Landsat images should be pre-processed using the DOS method for atmospheric correction and the Gram-Schmidt method for image enhancement. According to the results, the overall classification accuracy of multi-temporal images achieved over 85%, and Landsat images are suitable for classifying land cover on small islands in Truong Sa Islands, such as Subi Reef.