Denmark elevation data

Datasættet repræsenterer skyggeeffekten af den danske højdemodel fra 2007 (DK-DHM/Terræn 2007). DHM/terræn er en digital model af terrænets højde sammenlignet med det gennemsnitlige havniveau, dvs. terrænets kote (DVR90). Modellen er gemt i et gitter (raster) med en cellestørrelse, der oprindeligt var 0,4 m, men som for dette datasæt er nedskaleret til 10 m. Datagrundlaget for modellen er baseret på laserscanninger fra fly (Lidar) indsamlet i perioden 2005-2007, og som har gennemgået omfattende beregninger og kvalitetssikringsprocedurer. Kortkartografi og styling udarbejdet af Christian Brogaard Pedersen (cbp@geus.dk). Copyright: Styrelsen for Dataforsyning og Infrastruktur (SDFI). The data set represents the shadowing of the Danish altitude model from 2007 (DK-DHM/Terrain 2007). DHM/terrain is a digital model of the height of the terrain compared to the average sea level, i.e.. the elevation of the terrain (DVR90). The model is stored in a grid (raster) with a cell size originally 0.4 m, but which for this data set is down -sampled to 10 m. The data base for the model is based on laser scans from aircraft (Lidar) collected in the period 2005 - 2007 and which has undergone extensive calculations and quality assurance procedures. Map cartography and styling compiled by Christian Brogaard Pedersen (cbp@geus.dk). Copyright: The Danish Agency for Data Supply and Infrastructure (SDFI).

Det sammenhængende højde- og dybdekort blev udarbejdet omkring 1997, hvor de danske områder blev opdateret i 2005-2006. Det er opbygget af 5 m kurver og er også tilgængeligt som polygoner.  Kortet er kontinuerligt på tværs af grænsen mellem land og hav. Kortet har et polygonlag med datakilder, der viser, hvor dataene for de forskellige områder kommer fra, og hvilken skala de er lavet i.  Kortet er lavet til visning i en skala på 1:500.000. Højde- og dybdekortet er opbygget af to forskellige datasæt: Højdemodel (gitter) med højdekurver (form). Højdemodellen er et 40 cm gitter fra 2014-2015, lavet som en mosaik i 2015. Batymetrimodel (gitter) med dybdekurver (form). Dybdekurverne er med 5 m intervaller fra 2006, som det overordnede kort er lavet ud fra, og som også er tilgængelige som polygoner. Batymetridata blev downloadet fra EMODNET i 2016 og er i øjeblikket det bedste dybdegitter. De danske data kommer fra GST. Gitteret er oprindeligt i længdegrad/breddegrad, men er blevet reprojekteret til ETRS 1989 / UTM zone 32. Den oprindelige cellestørrelse er 0,002 grader, dvs. ca. 126 m bredt og 230 m højt. Det reprojekterede gitter er lavet i 125 m celler ved hjælp af en bilineær interpolation. Farvandsväsnets havdybder over det danske område fra 2005 er også tilgængelige som et 100 m gitter på geocenterserveren. Bemærk venligst, at dette gitter er blevet flyttet ca. 120 m mod nordøst.

Denmark's Height Model - Terrain (DHM/Terrain) is a digital model that describes the height of the terrain in relation to the average sea level. Objects that are located above ground, including trees, houses, cars, and more have been removed. DHM/Terrain and shadow maps are suitable for planning, design and landscape analysis. Data is part of Denmark's Height Model (DHM).

Europe - Height model Terrain is a digital height model over Europe. The height model includes definitions of terrain heights, and is part of Open Maps for Europe, which offers free map solutions from more than 40 European countries.

The Danish Height Model 2015 is a comprehensive data collection that provides detailed historical information about the altitude conditions in Denmark.

The 2007 Danish Height Model includes detailed historical information on the altitude conditions in Denmark. The terrain model is a digital model that describes the altitude of the terrain in relation to the average sea level. The terrain model is a digital model that describes the altitude of the terrain in relation to the average sea level.

Greenland's topographical maps include a collection of historical maps of Greenland in various target conditions. These cards are suitable as background cards for use in own registrations.

Dette datasæt indeholder højdekurver med et interval på 0,25 m, som angiver terrænets højde over havets overflade (Elevation). Data kan anvendes alene eller i kombination med andre data fra Danmark og Europa til analyser og planlægning.

Denmark's Height Model - Quick DHM is a temporary height model that includes nationwide data for terrain and surface as well as shadow maps. The model focuses on an early exhibition. It is therefore important to note that data is not quality checked, which is why there may be errors and omissions.

Data is collected using laser scanning from aircraft (LiDAR). The height model is updated regularly, approximately 1/5 per year. Data contains information about when an area has been flown. The point cloud has an average density of 4-5 points/m2 for data collected in 2014/15 and 8 points/m2 for data from 2018 onwards. The point cloud is classified and only points located on the surface form the basis of this dataset. The point cloud is converted into a grid with a size of 0.4 meters. Specifications: Horizontal 0.15 meters, vertical 0.05 meters.

Denmark's Height Model - Altitude curves show the altitude conditions in the Danish landscape through a series of lines, each indicating a specific altitude above sea level. Height curves are used to show variations in the terrain and topography of the landscape. Data is part of Denmark's Height Model (DHM).

The 2007 Danish Height Model includes detailed historical information on the altitude conditions in Denmark. The surface model is a digital model of the physical surface that describes the height of buildings and vegetation above sea level.

Excessive shadow map is a visualization of DHM/Terrain, which shows variations in the slope of the terrain with a 3D effect. The exaggerated shadow map makes terrain variations more apparent if you are looking for even small differences such as streams in a forest or traces of ancient monuments.

Data is collected using laser scanning from aircraft (LiDAR). The height model is updated regularly, approximately 1/5 per year. Data contains information about when an area has been flown. The point cloud has an average density of 4-5 points/m2 for data collected in 2014/15 and 8 points/m2 for data from 2018 onwards. The point cloud is classified and only points located on the surface form the basis of this dataset. The point cloud is converted into a grid with a size of 0.4 meters. Specifications: Horizontal 0.15 meters, vertical 0.05 meters.

The Danish Height Model - Origin (DHM/Origin) includes information on the origin of points in the height model as well as areas where corrections have been made in the current and the historical height models. Data is part of Denmark's Height Model (DHM).