Elevation Contours
收藏opendatakingston.cityofkingston.ca2019-12-09 更新2025-01-21 收录
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https://opendatakingston.cityofkingston.ca/explore/dataset/elevation-contours/
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Elevation contours (often visually depicted as contour lines on topographic maps) connect points of equal elevation within the boundary of the City of Kingston. Contours that are close together indicate steeper terrain, whereas contours that are wider apart indicate flatter terrain. Elevations are measured relative to sea-level.Note: because of the size of the dataset you must zoom in to see completed contour lines in the portal.More technically, this is the static indexed one meter contours derived from the three-dimensional “point cloud” representation of the City of Kingston that was captured in 2008-2009 through an aerial LiDAR survey as part of the LiDAR Eastern Acquisition Project (LEAP) project in collaboration with the Ontario Ministry of Natural Resources and Forestry.It is indexed at 2, 5, 10, 25, 50 m.Contact Us!TIP: To download the entire dataset please use GeoJSON or KML formats. Shapefile export is limited to 50k records.
高程等高线(常在地形图上以等高线形式直观展现)将金士顿市边界内海拔相等的点连接起来。相邻较近的等高线表明地形较为陡峭,而间距较宽的等高线则指示地形相对平坦。海拔高度以海平面为基准进行测量。注:由于数据集的规模较大,您需要在门户中放大以查看完整的等高线。从技术角度来看,这指的是从2008-2009年通过航空激光雷达调查捕获的金士顿市三维“点云”表示中提取的静态索引为一米的等高线。该数据集以2米、5米、10米、25米、50米为索引。联系我们!提示:请使用GeoJSON或KML格式下载整个数据集。Shapefile导出仅限于50,000条记录。
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