EUREF 2007 Symposium. National Report of Austria

Transcription

1 EUREF 2007 Symposium National Report of Austria by Norbert Höggerl, Günter Stangl, Diethard Ruess, Zahn Ernst, Titz Helmut London, Great Britain June 6 th to June 9 th,

2 Realization of ETRS89 in Austria (1) IGS Station (= ITRS) EPN Station EUREF Station: Solution Austria 2002 LINZ AT01(HUTB) WIEN TRFB PFAN SBGZ HFLK HKBL GRAZ GUES KOET 0 25 km 50 km VLCH 2

3 Realization of ETRS89 in Austria (2) IGS Station (= ITRS) AT01(HUTB) EPN Station ROHR FRST EUREF Station: Solution Austria 2002 GPS Reference Station APOS LINZ RIED WELS GMND AMST STPO TRFB WIEN PFAN SBGZ WIND DOER FLDK LECH KOPS KRBG HFLK PATK MUEN KTZB SILL DIEN SONN KOET HKBL TAMS LIES LANK POEL LEON TREI VLKM KLAG BLEI DLBG GRAZ FLDB GUES 0 25 km 50 km VLCH 3

4 Realization of ETRS89 in Austria (3) IGS Station (= ITRS) AT01(HUTB) EPN Station ROHR FRST EUREF Station: Solution Austria 2002 GPS Reference Station APOS GPS - Network AGREF/AREF LINZ RIED WELS GMND AMST STPO TRFB WIEN PFAN SBGZ WIND DOER FLDK LECH KOPS KRBG HFLK PATK MUEN KTZB SILL DIEN SONN KOET HKBL TAMS LIES LANK POEL LEON TREI VLKM KLAG BLEI DLBG GRAZ FLDB GUES 0 25 km 50 km VLCH 4

5 APOS Austrian Positioning Service 5

6 APOS Austrian Positioning Service Institute No.Sta BEV: 30 AAS: 3 KELAG: 8 SAPOS: 10 SWIPOS: 4 SIGNAL: 5 SKPOS: 2 STPOS: 3 6

7 APOS: Differences of Co-ordinates (cm) for mutual Reference Stations near the border derived from the national ETRS89 solution Lindau St. Gallen Sargans Stationen Pfänder Feldkirch Lech Davos Kops Ardez Mals SWITZERLAND BEV ÖAW KELAG SAPOS, AGNES-SWIPOS, SIGNAL, STPOS, SKPOS 0 25 km 50 km Wertach Krahberg GERMANY Aschau Rosenheim Bad Tölz Garmisch Münster Kitzbühel Hafelekar Patscherkofel Sterzing Bruneck ITALY Sillian Freilassing Finsterau Passau Pfarrkirchen Kötschach Ried/Innkreis Gaisberg Service Rohrbach SAPOS/ Germany Gmunden Hauser Kaibling Landskron Freistadt Klagenfurt Amstetten Bleiburg Dörflach St. Pölten Pöls Dienten Tamsweg Slovakia Graz OLG Sonnblick St. Leonhard Feldbach STPOS Lieserhofen Treibach 1,3 1,1 Deutschlandsberg Villach Wels SWIPOS Switzerland Windischgarsten SIGNAL Slovenja SKPOS Italy dn (north) 1,3-0,8-0,1-0,6 Slovenj Gradec de (east) 0,1-0,2 Trafelberg 0,2 0,4 Maribor Wien du (up) 0,3-0,8-0,3 1,4-0,7 Bodonci Senica SLO VAKIA Bratislava Bovec Radovijca SLOVENJA 7

8 Realization of ETRS89 in Austria (4) IGS Station (= ITRS) AT01(HUTB) EPN Station ROHR FRST EUREF Station: Solution Austria 2002 GPS Reference Station APOS GPS - Network AGREF/AREF Control Points measured by APOS PFAN SBGZ LINZ RIED WELS GMND WIND AMST STPO TRFB DOER WIEN FLDK LECH KOPS KRBG HFLK PATK MUEN KTZB SILL DIEN SONN KOET HKBL TAMS LIES LANK POEL LEON TREI VLKM KLAG BLEI GRAZ DLBG FLDB GUES 0 25 km 50 km VLCH 8

9 Co-ordinate Differences between GPS-Base Network and APOS-RTK Measurements GPS-Base Network: 1) AGREF Austrian Geodynamic Reference Frame about 100 points 2-3 times measured (48-72 h) Quality: EUREF Class B 2) AREF Austrian Reference Frame about 300 points 1 time measured (24 h) Quality: +/- (1,5) cm for position 3) Standard deviation of the Differences m dx = ± 1,1 cm (n = 295) m dy = ± 1,4 cm m dh = ± 3,7 cm 9

10 ECGN Stations in Austria: Graz IGS: Laser since 1982 GPS since 1992 Levelling/C-values: 1987 Absolute gravity: 2000/04 New: 2005, 2006 absolute gravity measurements

11 [microgal ECGN Station GRAZ_481m - Absolute gravity measurements year ECGN Station Graz: Repeated Absolute Gravity Measurements microgal Jilag6 ZZG (Poland) Seasonal variation of gravity at station Graz J FJ M A M J J A S O N D month 6 Measurements: 1999 to 2006 JILAG6: 5 times ZZG: 1 time Variation of 30 µgal Seasonal variation Reason why?