Cornwall Boundary DEM 2021

Overview This hosted elevation service provides a single digital elevation model derived from LiDAR data and referenced to the CGVD28 vertical datum. It covers a local area around Cornwall in eastern Ontario and is delivered as an ArcGIS Server Image Service with one floating-point band, LERC compression, and a cached elevation tile service for fast display. The service supports image, tiles, and tile map access, allowing users to view the terrain surface, query elevation values, identify locations, and download data where permitted. Source: City of Cornwall概述 本托管式高程服务提供一套源自激光雷达（LiDAR）数据的单一数字高程模型（Digital Elevation Model），并参考CGVD28垂直基准面。该服务覆盖安大略省东部康沃尔（Cornwall）周边的局部区域，以ArcGIS Server影像服务的形式发布，包含一个浮点波段、采用LERC压缩，并附带用于快速显示的缓存高程瓦片服务。本服务支持影像、瓦片及瓦片地图访问，可使用户查看地形表面、查询高程值、定位点位，并在许可范围内下载数据。 数据来源：康沃尔市