Shorelines from High-resolution WorldView Satellite Imagery, Real-time Kinematic Global Positioning Data, and Aerial Imagery for 2013 to 2020 for Study Sites Within Grand Bay National Estuarine Research Reserve, Mississippi

Shoreline change analysis is an important environmental monitoring tool for evaluating coastal exposure to erosion hazards, particularly for vulnerable habitats such as coastal wetlands where habitat loss is problematic world-wide. The increasing availability of high-resolution satellite imagery and emerging developments in analysis techniques support the implementation of these data into coastal management, including shoreline monitoring and change analysis. Geospatial shoreline data were created from a semi-automated methodology using WorldView (WV) satellite data between 2013 and 2020. The data were compared to contemporaneous field-surveyed Real-time Kinematic (RTK) Global Positioning System (GPS) data collected by the Grand Bay National Estuarine Research Reserve (GBNERR) and digitized shorelines from U.S. Department of Agriculture National Agriculture Imagery Program (NAIP) orthophotos. Field data for shoreline monitoring sites was also collected to aid interpretation of results. This data release contains digital vector shorelines, shoreline change calculations for all three remote sensing data sets, and field surveyed data. The data will aid managers and decision-makers in the adoption of high-resolution satellite imagery into shoreline monitoring activities, which will increase the spatial scale of shoreline change monitoring, provide rapid response to evaluate impacts of coastal erosion, and reduce cost of labor-intensive practices. For further information regarding data collection and/or processing methods, refer to the associated journal article (Smith and others, 2021) Smith, K.E.L., Terrano, J.F., Pitchford, J.L., and Archer, M.J., 2021, Coastal wetland shoreline change monitoring-A comparison of shorelines from high-resolution WorldView satellite imagery, aerial imagery, and field surveys: Remote Sensing, v. 13, no. 15 (special issue), art. 3030, https://doi.org/10.3390/rs13153030.

岸线变化分析是评估沿海地区受侵蚀灾害影响程度的重要环境监测手段，尤其适用于全球范围内栖息地流失问题严峻的脆弱生境，例如滨海湿地。高分辨率卫星影像的可获取性不断提升，加之分析技术的新兴进展，推动此类数据应用于海岸管理工作，其中包括岸线监测与变化分析。2013至2020年间，研究团队采用WorldView（WV）卫星数据，通过半自动化方法生成了地理空间岸线数据。本数据集与大湾国家河口研究保护区（GBNERR）采集的同期现场实测实时动态（Real-time Kinematic, RTK）全球定位系统（GPS）数据，以及美国农业部国家农业影像计划（NAIP）正射影像数字化岸线进行了比对验证。研究团队同时采集了岸线监测点位的野外数据，以辅助研究结果的解译。本次发布的数据包含数字矢量岸线、三类遥感数据集的岸线变化计算结果，以及野外实测数据。该数据集将助力海岸管理人员与决策者将高分辨率卫星影像应用于岸线监测工作，从而扩大岸线变化监测的空间覆盖范围，为评估海岸侵蚀影响提供快速响应方案，并降低人工密集型作业的成本。如需了解数据采集与处理方法的更多细节，请参阅相关期刊论文（Smith等，2021）：Smith, K.E.L., Terrano, J.F., Pitchford, J.L., 及Archer, M.J., 2021, 《滨海湿地岸线变化监测——高分辨率WorldView卫星影像、航空影像与野外实测岸线的对比分析》，《遥感》（Remote Sensing），第13卷第15期（特刊），文章编号3030，https://doi.org/10.3390/rs13153030。