LiDAR Elevation (DEM) and Intensity image, outer Mackenzie Delta 2008, coastal Arctic Canada

This GeoTIFFs represents ground elevation and ground intensity of the northwest portion of the outer north-west of the Mackenzie Delta 2008, Northwest Territories, Canada. It is derived from LiDAR (Light Detection and Ranging) data acquired by Advanced Geomatics Research Group (AGRG), Nova Scotia Community College (NSCC) in partnership with Natural Resources Canada and Environment Canada. The source of the gridded LiDAR elevation data is cleaned ground-classified LAS point files containing elevation and intensity values. Data were collected using the ALTM 3100-C LiDAR system. Vertical readings are accurate to within 30 cm. Elevation heights are transformed to the Canadian Geodetic Vertical Datum of 1928 (CGVD28) using height transformation version 2.0 (HT2.0). These data were collected using differential Global Positioning System (GPS) which determines the position of the aircraft with an accuracy of 30 centimetres. For more information please refer to the data files entitled: CCIN12021_20150106_Mackenzie_Delta_LiDAR_Intensity_Extended_Metadata_FGDC.xml and CCIN12021_20150106_Mackenzie_Delta_LiDAR_Elevation_Extended_Metadata_FGDC_csr.xml

本GeoTIFF（地理标记栅格数据格式）数据集涵盖2008年加拿大西北地区麦肯齐三角洲西北外缘区域的地面高程与地面强度数据。该数据集由加拿大自然资源部（Natural Resources Canada）与加拿大环境部（Environment Canada）合作，由新斯科舍社区学院（Nova Scotia Community College, NSCC）下属高级地理信息研究小组（Advanced Geomatics Research Group, AGRG）获取的LiDAR（激光雷达）数据衍生而来。网格化LiDAR高程数据的源文件为经过清洗的地面分类LAS点云文件，其中包含高程与强度数值。数据采集采用ALTM 3100-C型LiDAR系统，垂直测量精度可达30厘米以内。高程值已通过高程转换工具2.0版（HT2.0）转换至1928年加拿大大地垂直基准面（CGVD28）。本次数据采集使用差分全球定位系统（GPS）进行飞机定位，定位精度达30厘米。如需获取更多详细信息，请参阅以下元数据文件：CCIN12021_20150106_Mackenzie_Delta_LiDAR_Intensity_Extended_Metadata_FGDC.xml 与 CCIN12021_20150106_Mackenzie_Delta_LiDAR_Elevation_Extended_Metadata_FGDC_csr.xml