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
ITRFyy
IERS Terrestrial Reference Frame 19yy/20yy
ETRFyy
European Terrestrial Reference Frame 19yy/20yy
CHTRFyy
Swiss Terrestrial Reference Frame
Local Swiss reference frames
LV95
National control network 1995
LHN95
National vertical network 1995
LV03
National surveying 1903
LN02
National precise levelling 1902

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
LV03
LV95
LN02
LHN95
swisstopo
D DHDN
DREF91
HHN12
DHHN92
BKG
F NTF
RGF93
GF-IGN69/78

IGN
I SI40
ED50
? IGM
A MGI/BMN
AREF / AGREF
GHA 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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