Reference system CHTRS95

The new global reference system for the Swiss national survey LV95 which is identical to ETRS89 with the point at the time t0 = 1993.0. The system includes the definition of the reference ellipsoid (GRS80) fixed in position and orientation to Z0 and uses the global map projection Universal Transverse Mercator (UTM). CHTRS95 also defines a new, theoretically rigorous orthometric height system with respect to the gravity field whose point of origin Z0 (Geostation Zimmerwald) has the orthometric height H0 = 897.8027 m (derived from the UELN95/98).

Simple

Alternate title

Swiss Terrestrial Reference System 1995

Date (Creation)
1995-12-31
Status
Completed

Owner

Federal Office of Topography swisstopo - Contact
Seftigenstrasse 264
Wabern
3084
https://www.swisstopo.ch

Point of contact

Federal office of topography swisstopo, survey - Surveying Division (Geodesy and Federal Directorate of Cadastral Surveying)
Seftigenstrasse 264
Wabern
3084
CH
https://www.cadastre.ch/
Topic category
  • B Location

Extent

Extent

Description

Topographic Landscape Model

Geographic identifier
TLM

N
S
E
W








Maintenance and update frequency
Not planned
Maintenance note

The data is constant and there is no need updating it

Duration of Conservation
275
Appraisal of Archival Value
A
Reason for Archiving Value
Evidence of business practice
geocat.ch

  • national survey

  • reference system

  • official geodata

  • Conservation and archiving planning AAP - Confederation

  • reference frame

GEMET

  • geodesy

Associated resource

Title

Geodätische Bezugssysteme (Landesvermessung)

Association Type
Reference to a master resource of which this one is a part
Language
Deutsch
Character encoding
UTF8
Language
Français
Character encoding
UTF8
Language
English
Character encoding
UTF8
Basic Geodata
true
Basic Geodata ID

33.3

Basic Geodata Legal Level
Federal
Basic Geodata Type
Reference Geodata
Distribution format

  • nan

Digital transfer options

OnLine resource

https://www.swisstopo.admin.ch/en/swiss-reference-systems

Reference system identifier
CHTRS95

Metadata

Metadata identifier
0a5fca1f-c6e5-4828-8423-6b64d59bb2b1

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, survey - Surveying Division (Geodesy and Federal Directorate of Cadastral Surveying)
Seftigenstrasse 264
Wabern
3084
CH
https://www.cadastre.ch/

Type of resource

Resource scope
Dataset
Metadata linkage

https://www.geocat.ch/geonetwork/srv/api/records/0a5fca1f-c6e5-4828-8423-6b64d59bb2b1

Date info (Creation)
2008-02-20T12:00:00Z
Date info (Revision)
2026-04-13T09:03:16.989739Z

Metadata standard

Title

GM03 2+

 
 

Spatial extent

Keywords

GEMET

geodesy
geocat.ch

Conservation and archiving planning AAP - Confederation national survey official geodata reference frame reference system


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