Analyses of shoreline movement to assess sediment stabilization from 2012-10-29 to 2017-09-08

Satellite imagery imported into ArcGIS software were used to delineate the shoreline (defined as the edge of vegetation) and calculate shoreline movement as a proxy for sediment stabilization. For at least 2 years prior to and for each sampling year of the study, the imagery for each of the plots was obtained with a minimum of 1 viable image per year for a total of 4 analyses over the project period. Changes in shoreline position were calculated using U.S. Geological Survey (USGS) Digital Shoreline Analysis System (DSAS) and used estimate erosion rates for each site.本研究将导入至ArcGIS软件的卫星影像用于划定海岸线（定义为植被带边缘），并以海岸线迁移作为沉积物稳定状态的替代指标计算其变化。在本研究的每个采样年份以及研究开展前至少2年的时段内，每个样地的卫星影像均需获取，且每年至少获得1幅可用影像，整个项目周期内共计完成4次分析。研究采用美国地质调查局（U.S. Geological Survey, USGS）数字海岸线分析系统（Digital Shoreline Analysis System, DSAS）计算海岸线位置变化，并以此估算各站点的侵蚀速率。