Beach Erosion Triggered by Spatial Imbalance of Longshore Sand Transport in Phan Thiet, Vietnam

In developing countries including Vietnam with rapid economic growth, the beach erosion has become severe. Various artificial facilities for economic development have been rapidly constructed on coasts, and once erosion occurs, stop-gap measures against erosion have been widely taken, resulting in further downcoast erosion. In this study, beach erosion was investigated by comparing aerial photographs and actual field observations on October 23, 2016 with those on November 9, 2017, taking beach changes in Phan Thiet as an example. The erosion mechanism in this area was studied on the basis of these field data.