Shoreline survey data collected at Rialto Beache, Washington State, 2018-11-24

Data were collected using GNSS survey methods, with a differential GPS operating in Real Time Kinematic (RTK) mode. All data were collected with an AshTech ProMark 200 RTK-DGPS system connected to the Washington State Reference Network. Horizontal positions are referenced to NAD83(2011) and the vertical data are referenced to NAVD88(Geoid09). All survey data were collected with the GNSS system mounted on a 2.05 m rover pole, held level as a transect line was traced in a cross-shore orientation on the beach. […]本数据集采用全球导航卫星系统（Global Navigation Satellite System, GNSS）测量方法采集，所用差分GPS（Differential GPS, DGPS）工作于实时动态（Real Time Kinematic, RTK）模式。所有数据均通过接入华盛顿州参考站网的AshTech ProMark 200 RTK-DGPS系统采集。水平位置以北美大地基准1983（2011版）（NAD83(2011)）为基准，垂直数据以北美垂直基准1988（大地水准面09）（NAVD88(Geoid09)）为基准。所有测量数据均通过安装于2.05米流动站杆的GNSS系统采集，测量过程中保持杆体水平，沿海滩上垂直于岸线的方向完成样带轨迹追踪。[...]