As DTM CRS3035RES50000mN2850000E4600000 elevation grid 1 m cut-off date 15.9.2019

The ALS DTM height grid belongs to the product group “Digital terrain elevation model” (DGM). The digital terrain elevation model (DGM) describes the earth’s surface (natural soil, without vegetation) in the form of dots arranged in a regular grid of 1 m and georeferenced in position and height in the European reference systems. The ALS DTM elevation grid was recorded with Airborne laser scanning technologies. The ALS DTM Height Grid is a cooperation product of the Austrian federal and state spatial data providers. This is one of a total of 55 tiles, which together cover the territory of Austria. Reference date = creation date: The data for this day are the most up-to-date database of the BEV. This is not identical with the recording or survey date. The topicality can be found in the corresponding series under “Downloads, Views and Links” in the update overview.ALS DTM高度网格隶属于“数字地形高程模型（Digital Terrain Elevation Model, DGM）”产品组。数字地形高程模型（DGM）以1米间距的规则格网点位形式描述地球表面（自然地表，不含植被），并采用欧洲参考系完成位置与高程的地理配准。该ALS DTM高程网格通过机载激光扫描技术采集，是奥地利联邦与各州空间数据提供商的合作产物。 该数据集为总计55幅格网瓦片之一，全部55幅瓦片共同覆盖奥地利全境。 参考日期=创建日期： 该参考日期对应的数据为BEV的最新数据库版本。该日期与数据采集或勘测日期并不一致。数据的现势性可于更新概览中“下载、浏览与链接”板块下的对应系列中查询。