1. Graz 2003 Report of the OLG LAC EPN and other activities Report 2003 E. Cristea, Space Research Institute, Austrian Academy of Sciences G. Stangl, Federal Office of Metrology and Surveying

2. Graz 2003 EPN subnetwork OLG l 47 stations (5 inactive) l Extension 5000 km l L5/L3 fixing strategy l Bernese Processing Engine l IGS (and CODE) orbits

3. Graz 2003 OLG subnetwork 2003

4. Graz 2003 ARE/CERGOP l Austrian Reference Extended and CERGOP permanent sites l Monitoring geodynamics of Central Europe l 50 stations, most of them EPN l Extension 3000 km l L5/L3 and QIF fixing strategy l CODE orbits and BPE

5. Graz 2003 DGPS-Austria l National reference for Austria l All public and some private Austrian permanent stations l 28 stations (8 EPN) l Extension 800 km l L5/L3 fixing strategy l CODE orbits and BPE

6. Graz 2003 Future National Reference Network 2003 (still growing)

7. Graz 2003 MON l Monitoring EPN region VI (Balkan, Anatolia, Caucasus, Near East) l EUREF special project l 14 EPN stations l Extension 2000 km l L5/L3 fixing strategy l CODE orbits and BPE

8. Graz 2003 Monitoring Network OLG

9. Graz 2003 Epoch Networks l CEGRN 1994-, estimating Central European intraplate velocities, >60 sites (epoch+permanent) l EUREF Austria 2002, introduction of ETRS-89 as reference system l AGREF Austrian Geodynamic Reference 1992-, monitoring movements, geoid determination, 100 epoch sites (1-5 epochs)

10. Graz 2003 MON – Sudden Human and Natural Interference

11. Graz 2003 DRAG - receiver changes (Ashtech 1193/1198/1199)

12. Graz 2003 RAMO – cut-off change (10/5° 1206)

13. Graz 2003 GRAZ - antenna + receiver changes (1112, 1116)

14. Graz 2003 GRAZ antenna change fixing distorts the UP component of all other stations

15. Graz 2003 MON - N/E Velocities, BUCU fix 40°30°20° 30° 40° 30°20° 30° 40°

16. Graz 2003 Comparison between the EPN and OLG estimated velocities

17. Graz 2003 Active fault map of Turkey

18. Graz 2003 Tectonic map of Anatolia Modified from Barka (1992) and Rockwell and others

19. Graz 2003 Recommendations l Replace antenna/receiver at RAMO l AMMN is necessary for monitoring plate boundaries l Several stations are necessary monitoring the Anatolian plate(s) and its boundaries

20. Graz 2003 ADDNEQ estimation of N, E Absolute Velocities 30° 40° 20°30°40° 20°30°40° 30°