Digital elevation model Hamburg DGM 25

Derived, area-wide digital terrain model with a grid width of 25 meters based on DTM1. A laser scan survey (airborne laser scanning) was carried out in 2020 for the area of ​​the Free and Hanseatic City of Hamburg (excluding the area of ​​the Hamburg Wadden Sea). The data are available in position status 310 (ETRS89/UTM), with altitude information above mean sea level (NHN), according to DE_DHHN2016_NH. The accuracy of a single measuring point is approx. ± 255 cm in clearly defined areas, such as on street surfaces. The accuracy is lower in areas of shading (bridges), vegetation, especially areas in forest and shrub areas and on steeply sloping terrain. The LGV offers the following grid widths as standard: DGM 1 (grid width 1m), DGM 10 (grid width 10m), DGM 25 (grid width 25m). An annual update of this data takes place via aerial photography. In addition to the pure provision of height information as a regular grid, the data is also provided as a service in a triangular mesh (TIN). Data exchange with 2D and 3D CAD systems is ensured. As a further service, e.g. contour lines and profiles can be derived or volumes and inclinations can be calculated. By integrating further basic geospatial and technical data (vector and raster data), further services can be derived, e.g. for the areas of water management, civil engineering, environment and urban planning as well as energy supply large and small-scale applications.

Data and Resources

Additional Info

Field Value
Author State Office for Geoinformation and Surveying
Maintainer Helms, Martin, Herr
Version 15.0
Last Updated May 4, 2023, 02:19 (UTC)
Created May 4, 2023, 02:19 (UTC)
Conforms to ["http://dcat-ap.de/def/dcatde/1.0/"]
Contact name Helms, Martin, Herr
Frequency http://publications.europa.eu/resource/authority/frequency/ANNUAL
GUID http://suche.transparenz.hamburg.de/dataset/bd49c83a-5947-4f22-b249-c8951bb8fd40
Identifier 74289F96-7206-4AC6-AA15-FBC418E92A98
Issued 2022-10-18T00:00:00
Language ["http://publications.europa.eu/resource/authority/language/DEU"]
Modified 2023-04-24T19:58:47.775044
Publisher name State Office for Geoinformation and Surveying
Start of temporal extent 2010-03-01T00:00:00
Theme ["http://publications.europa.eu/resource/authority/data-theme/ENVI"]
URI http://suche.transparenz.hamburg.de/dataset/bd49c83a-5947-4f22-b249-c8951bb8fd40
Version notes Change to metadata license
access_rights https://www.govdata.de/dl-de/by-2-0
author_contacttype Organization
contributorID ["http://dcat-ap.de/def/contributors/transparenzportalHamburg"]
documentation ["http://suche.transparenz.hamburg.de/dataset/digitales-hoehenmodell-hamburg-dgm-253"]
geocodingText ["Free and Hanseatic City of Hamburg"]
harvest_object_id 7b7354a4-cada-4784-9eca-5a675b7845ee
harvest_source_id 1da0a2ca-d24c-4f40-a127-12319109776d
harvest_source_title Germany - Open Data Portal
is_version_of ["http://suche.transparenz.hamburg.de/dataset/digitales-hoehenmodell-hamburg-dgm-252"]
legalbasisText ["Hamburg Transparency Act (HmbTG). URL: http://transparenz.hamburg.de/das-hmbtg/ Legal text: http://transparenz.hamburg.de/contentblob/4318588/c8600b2b27ea31a5de6a92dacc138894/data/gesetzestext-hmbtg.pdf" ]
maintainer_contacttype Organization
metadata_harvested_portal http://suche.transparenz.hamburg.de/
originator_contacttype Organization
originator_name State Office for Geoinformation and Surveying
politicalGeocodingLevelURI http://dcat-ap.de/def/politicalGeocoding/level/state
politicalGeocodingURI ["http://dcat-ap.de/def/politicalGeocoding/regionalKey/020000000000"]
provenance The record has been harvested. Source: Metafederation catalogue
source ["https://metaver.de/cswhh"]
spatial {"type": "Polygon", "coordinates": [[[10.326304, 53.394985], [10.326304, 53.964153], [8.420551, 53.964153], [8.420551, 53.394985], [10.326304, 53.394985]]]}