Bundesamt für LandestopographieOffice fédéral de topographieUfficio federale di topografiaUffizi federal da topografia

EUREF’04: National Report of Switzerland

D. SchneiderE. BrockmannW. GurtnerA. SchlatterB. VogelA. WigetU. Wild

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Permanent GPS network (AGNES)• High performance: Average of data availability: > 99 %

• Contribution to ECGN: Collocation of various geodetic observations (see paper by E. Brockmann)

Fundamental station Zimmerwald

• Replacement of receivers (Trimble 4000SSI → 4700) resulted in signifi- cantly improved performance of RTK positioning (faster data output)• New station software (GPS-Base Vers. 2.10)

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Real time positioning service „swipos“

• International co-operation “D-A-CH”: Seamless positioning service along the national borders to Germany and Austria due to mutual integration of stations of the real-time networks: D: SAPOS, A: APOS and CH: swipos

• Data exchange between the control centers: SAPOS (BW) in Karlsruhe, SAPOS (BAY) in Munich, APOS in Vienna and swipos in Wabern.

• Delivery of RTCM data of station Zimmerwald to EUREF-IP over Internet• Development of a monitoring device for assessing VRS/RTK

swiposAPOS

SAPOS

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Analysis of permanent GPS networks

• Networks:

EUREF subnetwork 20 -> 25 (1 AGNES) daily observations 21 days

AGNES+ subnet EUREF

65 -> 72 (29 AGNES) daily observations 21 days

AGNES+ subnet EUREF

63 -> 72 (29 AGNES) hourly observations

0.5 hours

• GPS Meteorology: European collaboration within research projects COST-716 and TOUGH

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National Reference Frames• Determination of all AGNES

stations in the official reference frames (LV95, LV03 and LHN95)

ANDE

ARDE

BOUR

DAVO

EPFL

ETHZ

FALE

FHBB FRIC

GENE

HOHT

HUTT

JUJO

KREU

LOMO

LUZE

MART

NEUC

PAYE

PFAN

SAANSAME

SANB

SARG

SCHA

STAB

STCX

STGA

UZNA

ZIMM

Dossenbach

Farnsburg

Froburg

Gaiss

Gislifluh

Irchel

Küssaburg

Lauberg

Niedergebissbach Benken

Salen

Möhlin

Kaisten

Leuggern

Baldingen DinhardFrauenfeld

OttenbergRomanshorn

Gempenfluh

Herznach

BözbergBirrfeld

Oberglatt

Hohentannen St.Margrethen

Movelier

Montsevelier Belchenfluh

Erlinsbach Bellikon

Birmensdorf

DübendorfPfäffikon ZH Gähwil Schlatt

Muriaux

MoutierWiliberg

Dürrenäsch

Schwarzenbach LU

Sarmenstorf Obfelden

Kilchberg

Kappel

KrummenauEschen

Grenchen Aeschi

HuttwilGettnau Rain Menzingen

Wädenswil

VorderthalMurg

Sutz

HindelbankRuswil

Luzern

Udligenswil

Colombier

Mühleberg

Mänziwilegg

Lüderenalp

Escholzmatt

Schüpfheim Emmeten

Linthal Elm

Wichtrach

Schallenberg

SörenbergGiswil

Gurnigel

Wyler

Sustenpass

Wassen

Amsteg

Disentis

Boltigen Tellenburg

Wimmis

Männlichen

Lalden

Bellinzona

Stabio

Avers

Monteggio

Nufenenpass

OlivoneSamedan

Sta Maria (Calanca)

Sur

Bondo

Schwyz Samnaun

Brione

Schiers

Sils im Domleschg

Brusio

Fafleralp

Grimentz

Verbier

Val d'Illiez Ovronnaz

Montana

Chamblon

Villarsel-le-Gibloux

Château d'Oex

Wiechs

Wutöschingen

Hohentwiel

Siblingen

Chrischona

Hütten

LaufenburgBuchberg Stammheim

Dettighofen

Metzerlen Sissacherfluh Lägern Brütten

Schauenberg

Nollen GoldachPfänder

Fahy

Les Rangiers

Vogelberg

Wartburg

Lenzburg

Hönggerberg

Oberhelfenschwil

Montlingen

Reconvilier Riedholz

PfannenstielBachtel Schwägalp

Chasseral

Langenthal

Knutwil Sins

Einsiedeln

Gaster

La Chaux-de-FondsSeedorf

LuegMenzberg

Oberarth

Glarus

Sargans

Travers

Vully

SignauAlpnach

Col des Etroits

Forel

FribourgZimmerwald

Engelberg

Altdorf Klausenpass

Bonaduz Davos Ramosch

GuggisbergThun

RinggenbergBrienz

Brigels

Filisur Zernez

Le Lieu La Sarraz Moudon

La Tour-de-Trême

Oberalp

ZervreilaseeAndeer

Sta. Maria

Essertines

EchandensSavigny

Saanen

Grimsel S.Gottardo

DalpeLa Givrine Chailly Engstligenalp Fieschertal

BiascaMesocco

MalojaBerninapass

Bossy St-TriphonJeizinen

Simplon Crodo d'Ossola

Bignasco

Piton

Sion

Ascona

CòlicoMartigny

Les HaudèresSaas Fee

Sonvico

Bourg-St-Pierre Zermatt M.Generoso

Jungfraujoch

LECHFLDK

KOPS

KRBG

LIND

FREI

RAVE

SIGMSCHWGPS-Camp. CHTRF2004

and NEOTEK2004

CHTRF2004.1

CHTRF2004.2

CHTRF2004.3

CHTRF2004.4

CHTRF2004.5

CHTRF2004.7

NEOTEK2004

CHTRF2004.6

• Continued re-measurement of levelling lines which are part of the National Vertical Network (LHN95)

• Re-observation of the GPS re- ference network LV95 in 2004 (total: 208 stations, 60 control points of monitoring network)

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Current projects National Vertical Network LHN95: Software „HTRANS“ for the transfor-mation of heights

between the old (LN02) and the new vertical reference frames (LHN95). Differences: -60 to +20 cm

Swiss-4D: Kinematic analysis of repeated (levelling) or permanent (GPS) observation data for the investigation of crustal deformation, and tests with differential interferometric SAR for monitoring land subsidence and to validate the results with precise levelling

Control Point Data Service: Making available all control point data via the Internet

GIS National Border:Establishment of a GIS for the documentation of data pertaining to the national border