euref’03: national report of switzerland
DESCRIPTION
EUREF’03: National Report of Switzerland. Fundamental station Zimmerwald. SLR observations Continuously more observations with the new telescope since 1997 ranked # 5 out of about 40 stations regarding the number of Lageos normal points in 2002 # 1 in week March 16 to 22, 2003 - PowerPoint PPT PresentationTRANSCRIPT
Bundesamt für LandestopographieOffice fédéral de topographieUfficio federale di topografiaUffizi federal da topografia
EUREF’03: National Report of Switzerland
4 - 7 JUNE 03
EUREF'03 Toledo
Fundamental station Zimmerwald
• SLR observations– Continuously more
observations with the new telescope since 1997
– ranked # 5 out of about 40 stations regarding the number of Lageos normal points in 2002
– # 1 in week March 16 to 22, 2003
• GNSS oservations– 1 GPS, 2 GPS/GLONASS
receivers contribute to IGS and IGLOS
4 - 7 JUNE 03
EUREF'03 Toledo
Permanent GPS networks (AGNES)
• Last refinements of installations (29 sites)• Availability 99.1% (2002)• VRS software (with post-processing)• Connection D-A-CH• Developments of EUREF-IP
4 - 7 JUNE 03
EUREF'03 Toledo
Analysis of permanent GPS networks
• Networks:– EUREF-Subnet– AGNES + EUREF-Subnet– Processing interval: daily / hourly
• GPS-Meteorology: European Collaboration within COST-716 and TOUGH
4 - 7 JUNE 03
EUREF'03 Toledo
Transformation old/new reference frames
• Position: LV03LV95- finite element transformation- software: FINELTRA (correct)- regular Grid 1km (approximate)
• Height: LN02 LHN95- new: orthometric heights- part of horizontal position: diff. LN02 and normal heights- part of elevation: Bouguer anomalies- software: HTRANS
1 m 2 m 3 m
0 k m 2 0 k m 4 0 k m 6 0 k m 8 0 k m 1 0 0 k m
-0 .20 m
-0.15 m
-0.10 m
-0.05 m
-0.00 m
0.05 m
0.10 m
0.15 m
0.20 m
0.25 m
0.30 m
0.35 m
0.40 m
0.45 m
0.50 m
0.55 m
0.60 m
0.65 m
4 - 7 JUNE 03
EUREF'03 Toledo
Maintenance control points
Tasks # Dist. Establishment Maintenance
Km when what where when
Zimmerwald 1 250 -- operation/measurement CH perm./yearly
EUREF stations 3 150 if required inspection CH every 5 years
AGNES stations 29 50 if required operation/inspection CH perm./every 5 years
LV95 stations 206 15 if required inspection CH every 5 years
First order points(LV03)
3000 5 no new sites inspection Centr.Plateau every 15 years
Inspection Prealps./Jura every 25 years
inspection Alps if required
First order lev. points(LHN95)
9000 3 if required inspection CH every 15 years
Test nets 2 0-5 if required inspection CH every 5 years
4 - 7 JUNE 03
EUREF'03 Toledo
Current projects
• Control point data service• GIS for the national border• LHN95• Swiss 4D