Elevation information Saxony

The Digital Altitude Model (DHM) describes the surface of the terrain by means of three-dimensional coordinates of a representative amount of soil points (only the earth’s surface) or non-ground points (e.g. vegetation, buildings). It is divided into the Digital Terrain Model (DGM) and the Digital Surface Model (DOM). Surface points, such as buildings and vegetation, are not included in the DGM but are guided in the DOM. The query of the terrain height, height of the surface and the relief representations (foam image) of the DGM and DOM are based on the DGM1/DOM1 data with a grid width of 1 m (height in meters in the height reference system DHHN2016 — AdV namespace ‘DE_DHHN2016_NH’, EPSG code 7837). The primary data of the digital elevation models DGM/DOM were recorded by laser scanner measurement. The field height, the height of the surface and the height difference (normalised DOM — nDOM) are searched via the property data query (GetFeatureInfo). Use all the map layers (layers) of this service, set the map layers in your application (client) semi-transparent to detect the relief. The relief display (foaming) with tamper allows the creation of a map image with 3D effect when the overlying partition data layers, e.g. WebAtlasSN, are displayed semi-transparent. The vertical lines were automatically derived from the Digital Terrain Model (DGM) — Free State of Saxony, have an equidistance of 2.5 meters and are not mapped. The height lines generated due to the tile-wise generation have been summarised and smoothed and represent the starting point for the creation of the vertical lines of the Digital Topographic Maps (DTK). Printouts with a labelled grid of the DGM can be generated via the map layer labeling. Furthermore, information on slope inclination and terrain change is available.