geocat.ch
swissALTI3D
swissALTI3D is an extremely precise digital elevation model which describes the surface of Switzerland and the Principality of Liechtenstein without vegetation and development. It is updated in an cycle of 6 years.
Simple
- Date (Creation)
- 2011-03-28
- Date (Revision)
- 2017-03-15
- Identifier
- ch.swisstopo.swissalti3d
Point of contact
Owner
- Spatial representation type
- Grid
Spatial resolution
- Spatial resolution
- 10 m
Spatial resolution
- Spatial resolution
- 5 m
Spatial resolution
- Spatial resolution
- 50 cm
Spatial resolution
- Spatial resolution
- 2 m
- Topic category
-
- C Elevation
Extent
Extent
- Description
-
Switzerland
))
Extent
Extent
- Description
-
Liechtenstein
))
- Maintenance and update frequency
- Annually
- Maintenance note
-
The laser point data is updated in accordance with the TLM update cycle of 6 years. During this process, the dots are deleted and new points, breaklines and areas are set. For example, incorrect points in areas around bridges are removed and an enclosing breakline (enclosure) is implemented for lakes.
- Duration of Conservation
- 275
- Appraisal of Archival Value
- A
- Reason for Archiving Value
- Evidence of business practice
- geocat.ch
-
-
LIDAR (Light Detection And Ranging)
-
laserscanning
-
3D simulation
-
DEM (digital elevation model)
-
opendata.swiss
-
GIS (Geographic Information System)
-
Conservation and archiving planning AAP - Confederation
-
official geodata
-
3D visualisation
-
- GEMET
-
-
digital land model
-
geographic information system
-
laser
-
- geocat.ch
-
-
FSDI Federal Spatial Data Infrastructure
-
Resource constraints
- Other constraints
- Opendata BY: Open use. Must provide the source.
Associated resource
- Title
-
Höhendaten (Landesvermessung)
- Association Type
- Reference to a master resource of which this one is a part
- Language
- Deutsch
- Character encoding
- UTF8
- Language
- English
- Character encoding
- UTF8
- Basic Geodata
- true
- Basic Geodata ID
-
41.6
- Basic Geodata Legal Level
- Federal
- Basic Geodata Type
- Reference Geodata
- Distribution format
-
-
GeoTIFF (GEOTIFF)
-
ESRI Arcinfo ASCII GRID (ASC)
-
GRID ASCII (XYZ)
-
Digital transfer options
- OnLine resource
-
swissALTI3D
Digital transfer options
- OnLine resource
-
map.geo.admin.ch
- Statement
-
The information provided corresponds to the accuracies (1 sigma) of all three dimensions.
New generation of LiDAR data : 0.3 m
Previous generarion of LiDAR data (less than 2,000 metres above sea level): 0.5 m
Stereo correlation (more than 2,000 metres above sea level): 1 to 3 m
Manual updates (individual points, breaklines and areas): 0.1 m to 1 m
- Hierarchy level
- Dataset
- Number of dimensions
- 3
- Cell geometry
- Point
- Transformation parameter availability
- 1
- Reference system identifier
- EPSG:21781
- Reference system identifier
- EPSG:2056
- Reference system identifier
- EPSG:5728
Metadata
- Metadata identifier
- 691cb471-c3b5-48ec-a107-d0ad612fa70b
- Language
- Deutsch
- Character encoding
- UTF8
- Language
- Français
- Character encoding
- UTF8
- Language
- Italiano
- Character encoding
- UTF8
- Language
- English
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://www.geocat.ch/geonetwork/srv/api/records/691cb471-c3b5-48ec-a107-d0ad612fa70b
- Date info (Creation)
- 2011-03-22T16:44:27Z
- Date info (Revision)
- 2026-04-13T09:16:52.324019Z
Metadata standard
- Title
-
GM03 2+
