LiDAR for Outer Hebrides 2019 - 16 PPM LAS (LAZ)

A lidar survey of the Outer Hebrides was commissioned by the Scottish Environment Protection Agency (SEPA) to improve the topographic data available for modelling coastal and surface water flood risk. The aerial survey was carried out by Bluesky International Ltd. between June and September 2019. The point cloud data was captured at 16 points per square metre (ppm) and processed by Bluesky using the OSGM15 geoid model, OSTN15 horizontal transformation and Newlyn datum. The whole Outer Hebrides survey area had 11 ground control areas with RMSE values from 0.020m to 0.097m. The data is available as open data under an Open Government Licence. The 16 ppm resolution data covers approximately 200 km² of the main settlement areas, including Stornoway. This dataset reflects the LAS point cloud data with a density of 16 ppm.

苏格兰环境保护局（SEPA）委托进行了一项外赫布里底群岛的激光雷达调查，旨在提升可用于模拟海岸和地表洪水风险的拓扑数据的可用性。该航空调查由Bluesky International Ltd.于2019年6月至9月期间执行。点云数据以每平方米16个点（ppm）的密度进行采集，并使用Bluesky公司的OSGM15大地水准面模型、OSTN15水平变换和新林基准数据进行处理。整个外赫布里底群岛调查区域包含11个地面控制区域，均方根误差（RMSE）值介于0.020米至0.097米之间。数据作为开放数据，在开放政府许可下提供。16 ppm分辨率的点云数据覆盖了大约200平方公里的主要居住区，包括斯托诺韦。本数据集反映了具有16 ppm密度的LAS点云数据。