期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2022
卷号：V-3-2022
页码：569-575
DOI：10.5194/isprs-annals-V-3-2022-569-2022
语种：English
出版社：Copernicus Publications
摘要：Coastal erosion occurring all over the world is a disastrous coastal geological phenomenon. It can be caused by many natural factors such as wind and waves. Hurricane Sandy made landfall on the east coast of the United States at the end of October 2012 and caused severe damage to the economy and ecological environment. In this paper, we employ the ground-based LiDAR which has higher spatial resolution to observe the coastal change detection at Fire Island, New York where the place is severely affected. The research showed that sediment accumulation occurred away from the coast, up to 2.9 meters, erosion close to the coast, up to 9 meters. The total volume of the study area decreased by 78160.96 cubic meters. The coastline retreated by 32.86 meters on average. In addition, a website has been designed to record coastal erosion anytime and anywhere. We hope this study will help people better understand the impact of hurricanes on coastal erosion, enhance our awareness of environmental protection, and provide scientific information for further study.
关键词：Coastal erosion; LiDAR; Machine Learning; Digital Terrain Model (DTM); Coastline extraction; Disaster detection
