Reference system CH1903+

The new local reference system for the Swiss national survey LV95 which shall be introduced as the future basis for official cadastral surveying. CH1903+ uses the same ellipsoid (Bessel 1841) as CH1903. The spatial coordinate axes X,Y,Z are derived directly from CHTRS95 by translation (3 shifts). The map projection ("Swiss Grid") is identical to CH1903. The new fundamental point Z0 at Geostation Zimmerwald serves as the point of origin for the height. Its orthometric height was defined as H0 = 897.9063 m, so that for the "Repère Pierre du Niton" in Geneva the value of 373.6 m is obtained.

Simple

Alternate title

Reference system of the new national survey 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

  • Conservation and archiving planning AAP - Confederation

  • official geodata

  • national survey

  • reference system

  • 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

33.2

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

Statement

The parameters are chosen in the way that CH1903 and CH1903+ are as close as possible. All definitions are transferred to the fundamental point of Zimmerwald.

Hierarchy level
Dataset
Reference system identifier
CH1903+

Metadata

Metadata identifier
73442ba7-85d3-4214-b681-ad73187f77e9

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/73442ba7-85d3-4214-b681-ad73187f77e9

Date info (Creation)
2008-02-20T12:00:00Z
Date info (Revision)
2026-04-13T09:03:05.582546Z

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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