Images and marsh erosion data from Bastian Bay August 2014 to September 2015

Waterproof cameras were set on a two-hour time-lapse interval to photograph shoreline erosion for a coastal Louisiana marsh to document edge erosion over one year (August 2014 to September 2015). Image processing software was used to measure the width of the micro-headlands and micro-bay in select photographs. This data submission contains daily pictures of marsh erosion at one site in Bastian Bay, La and data on marsh erosion calculated from select images. Cameras were placed at two semi random sites, but only data from Site 2 was used to measure erosion because video from Site 1 was not usable for that purpose and could only be used in a qualitative sense. This dataset supports the publication: McClenachan, G., and R.E. Turner. 2017. Documenting marsh shoreline erosion: The land loss legacy effects of disturbances. Plos One. In revision.

本数据集采用以2小时间隔运行的延时摄影防水相机，对路易斯安那州沿海沼泽的岸线侵蚀开展为期一年（2014年8月至2015年9月）的影像记录，以系统记录岸缘侵蚀过程。本研究通过图像处理软件，对选定影像中的微岬（micro-headlands）与微湾（micro-bay）宽度进行定量测量。本次提交的数据包含美国路易斯安那州巴斯蒂安湾（Bastian Bay）一处监测点的沼泽侵蚀逐日影像，以及基于选定影像计算得到的沼泽侵蚀相关数据。相机布设点位为两个半随机选取的监测站点，但仅采用2号站点的数据开展侵蚀量测算——因1号站点的影像无法用于定量分析，仅可作定性参考。本数据集支撑以下待刊论文：McClenachan, G. 与 R.E. Turner，2017年，《记录沼泽岸线侵蚀：扰动引发的土地流失遗留效应》，《PLOS ONE》，处于修订阶段。