Abstract
Severe erosion has occurred on Cua Dai Beach, Hoi An City, Quang Nam Province which is located in the central part of Vietnam. The erosion has been getting more serious in recent years. In this study, the changes of morphology are presented through analysis of satellite images. The propagation to the north of sandy beach wedge toe can be observed, indicating northward longshore sediment movement. Tourist facilities such as hotel, embankment, etc. have significant influence to the evolution of surrounding morphology. The reduction of sediment supply from river due to sand mining along the river or at the river mouth has been pointed out as the highly possible mechanism of erosion.