RTK Ground Control Points for 2016 King County/Puget Sound Lidar Consortium Lidar Project

RTK (real time kinematic) ground control points collected for the PSLC King County Delivery Lidar dataset. RTK ground control points are used during the calibration process to help refine the vertical accuracy of the LiDAR data. Data was processed in reference to NAD83 (CORS96), however the horizontal datum for this dataset is defined as NAD83 (HARN) as the difference is generally small and allows for greater ease of use with data in different datums. The vertical datum is NAVD88, Geoid 03, and the data is projected in Washington State Plane North. Units are in US Survey Feet. Quantum Spatial collected the PSLC King County Delivery Lidar data for the Puget Sound LiDAR Consortium between 02/24/16 and 05/25/17.本数据集包含为普吉特湾激光雷达联盟（Puget Sound LiDAR Consortium, PSLC）金县交付激光雷达（LiDAR）数据集采集的实时动态差分定位（Real Time Kinematic, RTK）地面控制点。此类RTK地面控制点可在激光雷达数据的校准流程中用于优化其垂直精度。数据以北美大地基准83（NAD83, CORS96）为参考进行处理，但本数据集的水平基准定义为NAD83 (HARN)，由于二者差值通常极小，且可更便捷地适配不同基准下的数据集使用需求。本数据集的垂直基准为北美垂直基准88（NAVD88）与大地水准面03（Geoid 03），数据投影采用华盛顿州平面北坐标系（Washington State Plane North），单位为美国测量英尺（US Survey Feet）。昆腾空间（Quantum Spatial）于2016年2月24日至2017年5月25日期间，为普吉特湾激光雷达联盟采集了本次PSLC金县交付激光雷达数据集。