DHM25 Matrixmodell

The digital height model DHM25 is a data set representing the three-dimensional form of the earth's surface. It was derived from the height information of the Swiss National Map 1:25'000 and 1:50'000 for the extended perimeter. The matrix model is a height matrix with a 25-m grid. It is derived from the basis model through interpolation. The number of height values per area is constant (1600 values per km2). Since the coordinates x and y are implicitly given by the matrix structure, only the height value z is stored with each point. The height values correspond to the corners of the matrix and therefore do not represent the mean height of the matrix cell. Lakes are represented by their surface. No additional information concerning the use of the terrain is stored in the matrix model. The DHM25 represents the topography of the earth's surface without vegetation or built up areas.

Simple

Alternate title

DHM25

Date (Creation)
2001-06-15
Website

https://www.swisstopo.admin.ch/de/hoehenmodell-dhm25

Status
Completed

Point of contact

Federal Office of Topography swisstopo - geodata (Geodata Distribution)
Seftigenstrasse 264
Wabern
3084
CH
http://www.swisstopo.ch
Spatial representation type
Grid

Spatial resolution

Spatial resolution
25 m
Topic category
  • C Elevation

Extent

Extent

Description

DHM25

Geographic identifier
DHM25

N
S
E
W








Maintenance and update frequency
Not planned
Maintenance note

Der Nachführungsstand der Elemente des Basismodells entspricht demjenigen der Ersterfassung, mit Ausnahme der Gletschergebiete, welche gemäss dem im Winter 2000/2001 verfügbaren Kartenstand nachgeführt sind.

geocat.ch

  • terrain representation

  • hillshade

  • digital terrain model DTM

  • GIS (Geographic Information System)

  • contour in lakes

  • topography

  • contour line

  • 3D visualisation

  • isophysis

  • geodata

  • DEM (digital elevation model)

  • spot height

GEMET - INSPIRE themes, version 1.0

  • Elevation

GEMET

  • relief (land)

Resource constraints

Use constraints
License
Language
Deutsch
Character encoding
UTF8
Supplemental Information

Bei reduzierten Ansprüchen an die Genauigkeit können auch ausgedünnte Matrizen aus der Originalmatrix extrahiert werden. Diese Extraktion ist eine Selektion, so dass auch in diesem Falle die Eckhöhen der Matrixzellen wiedergegeben werden und nicht deren mittlere Höhe. Derart ausgedünnte Matrizen werden mit DHM25/50, DHM25/100 oder DHM25/200 bezeichnet (andere Maschenweiten sinngemäss).

Attribute description
Elevation
Compliance code
0
Language
Deutsch
Language
Français
Included with dataset
0
Title

DHM25 : Das digitale Höhenmodell der Schweiz. Produktinfo.

Date (Revision)
2004-06-01
Other citation details

https://www.swisstopo.admin.ch/content/swisstopo-internet/de/home/products/height/dhm25/_jcr_content/contentPar/tabs/items/dokumente/tabPar/downloadlist/downloadItems/868_1464696772548.download/dhm25infode.pdf

Distribution format

  • ESRI Arcinfo ASCII GRID (ASC)

  • GRID ASCII (XYZ)

  • AutoCAD DXF (DXF)

Digital transfer options

OnLine resource

MNT25

Digital transfer options

OnLine resource

Shop

Digital transfer options

OnLine resource

map.geo.admin.ch

Statement

Interpolation aus der Höheninformation der Landeskarte 1:25'000 abgeleitet, der Landeskarte 1:50'000 im erweiterten Perimeter.

Hierarchy level
Dataset
Reference system identifier
EPSG:21781

Reference system identifier
EPSG:5728

Maintenance and update frequency
As needed
Date
2005-12-31
Date type
nextUpdate

Metadata

Metadata identifier
ad654fde-9b0d-4385-8a4a-b59f50a42e25

Language
Deutsch
Character encoding
UTF8
Language
Français
Character encoding
UTF8
Language
Italiano
Character encoding
UTF8
Language
English
Character encoding
UTF8

Point of contact

Federal Office of Topography swisstopo - metadata (Metadata contact)
Seftigenstrasse 264
Wabern
3084
CH
http://www.swisstopo.admin.ch
Hours of service

08h30 - 11h00 / 14h00 - 16h00 GMT+1

Type of resource

Resource scope
Dataset
Metadata linkage

https://www.geocat.ch/geonetwork/srv/api/records/ad654fde-9b0d-4385-8a4a-b59f50a42e25

Date info (Creation)
2009-03-24T12:00:00Z
Date info (Revision)
2026-04-13T09:03:32.982571Z

Metadata standard

Title

eCH-0271

 
 

Spatial extent

Keywords

GEMET

relief (land)
GEMET - INSPIRE themes, version 1.0

Elevation
geocat.ch

3D visualisation DEM (digital elevation model) GIS (Geographic Information System) contour in lakes contour line digital terrain model DTM geodata hillshade isophysis spot height terrain representation topography


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