LiDAR 2013

LiDAR (Light Detection and Ranging) data collected in 2013 with coverage up to extents of City of Vancouver’s legal jurisdiction. Data products include "bare earth" ground surface and of the upper most surface defined by vegetation cover, buildings and other structures. NoteThe 2013 LiDAR data was used for the City’s coastal flood model, which was done as part of the City’s climate adaptation strategy. Data accessEach of the 168 polygons on the map or rows in the table provides two links to the data. One is in GeoTIFF format (zipped, file sizes range from 12 KB to 15.8 MB), the other in LAS format (zipped, file sizes range from 1.0 MB to 349.8 MB).AttributesPoint data was classified as:Bare-earth;Low vegetation;High vegetation;Water; andBuildings Data currencyData was collected on February 7, 15, and 19, 2013 and is current as of those dates. Data accuracyAverage point density: at least 12 points per square metreSidelap: at least 50%Vertical accuracy: 0.18 metre (95% confidence level)Horizontal accuracy: 0.36 metre (95% confidence level Coordinate systemThe map of grid cells on this portal is in WGS 84 but the LiDAR data in the GeoTIFF and LAS files are in the following coordinate system: Projection: UTM Zone 10 (Central Meridian 123 West)Hz Datum: NAD 83 (CSRS)Vertical Datum:  CGVD28Metro Vancouver Geoid (HTMVBC00_Abbbyn.zip) Websites for further information City boundary dataset

2013年收集的激光雷达（LiDAR）数据，覆盖范围至温哥华市法定管辖范围的边界。数据产品包括“裸地”地表及由植被覆盖、建筑物及其他结构定义的最高地表。注：2013年的LiDAR数据被用于城市的海岸洪水模型，该模型是城市气候适应策略的一部分。数据访问：地图上的每个168个多边形或表格中的每行数据均提供两个数据链接。其中一个为GeoTIFF格式（压缩，文件大小介于12 KB至15.8 MB之间），另一个为LAS格式（压缩，文件大小介于1.0 MB至349.8 MB之间）。属性：点数据被分类为：裸地；低植被；高植被；水域；以及建筑物。数据时效性：数据收集于2013年2月7日、15日和19日，并以此日期为准。数据精度：平均点密度至少为每平方米12点；侧向重叠至少为50%；垂直精度为0.18米（95%置信水平）；水平精度为0.36米（95%置信水平）。坐标系统：本门户上的网格单元地图采用WGS 84坐标系，但GeoTIFF和LAS文件中的LiDAR数据采用以下坐标系：投影：UTM区10（中央经线123西）；Hz基准：NAD 83（CSRS）；垂直基准：CGVD28大温哥华地区重力基准（HTMVBC00_Abbbyn.zip）。更多信息网站：城市边界数据集。