Reference frames

The realisation and utilisation of geodetic reference systems for practical surveying, for the basis of geographic information systems (GIS) and for cartography is made possible by using geodetic reference frames. These represent a realisation of the systems in the form of geodetic control networks and permanent stations, the coordinates of which are specified in the reference system.

GNSS-Landesvermessung

Global reference frames
ITRFyyyy
IERS Terrestrial Reference Frame yyyy
ETRFyyyy
European Terrestrial Reference Frame yyyy
CHTRFyyyy
Swiss Terrestrial Reference Frame yyyy
EVRFyyyy European Vertical Reference Frame
IHRFyyyy International Height Reference Frame
Local Swiss reference frames
LV95
National control network 1995 (official reference frame)
LHN95
National vertical network 1995 (scientific height reference frame)
LV03
National surveying 1903 (old reference frame)
LN02
National precise levelling 1902 (official heigt reference frame)

Local European reference frames

In addition to European reference frame ETRF89 (GNSS network EUREF), national reference frames (triangulation / levelling) are still in use in all European countries. The local reference frames are adapted to the special requirements of a given region (e.g. Switzerland) and should therefore only be used in that region. For further information about these frames and their transformation parameters, please consult the relevant national survey institutions.

Country
Local reference frame
3D / Position
Height Info
CH / FL
LV95
LV03
LHN95
LN02
swisstopo
D

ETRS89/UTM
DHDN/GK

DHHN2016
DHHN92

BKG
F RGF93
NTF
NGF-IGN69/78 IGN
I

ETRF2000/RDN

IGM95
GE42 (2018)
GE42 (1971)
IGM
A

ETRS89/UTM

MGI/GK
Levelled heights (Triest) BEV

Federal Office of Topography swisstopo Seftigenstrasse 264
P.O. Box
3084 Wabern
Tel.
+41 58 469 01 11

E-mail


Relevant authority

Geodesy and Federal Directorate of Cadastral Surveying
E-mail


Print contact

Federal Office of Topography swisstopo

Seftigenstrasse 264
P.O. Box
3084 Wabern

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