Long-term monitoring of recent crustal movements in the Eastern Alps (GPS-project "Alpentraverse")

• Autorzy: Schmitt G. , Lemp D.
• Konferencja: Geodetic and Geodynamic Programmes of the CEI (9 Symposium; 25-30.03.2001; Nice, France)
• Języki publikacji: EN

Abstrakty

EN

For monitoring recent crustal movements in the eastern AIps, a GPS-network of 43 benchmarks has been observed in 1991, 1992, 1994 and 1999. The traverse is reaching from Munchen (Germany) to Trieste (Italy) as a regional network with a mean point distance of about 20 km. The 1999 campaign has been measured with 23 Leica GPS-receivers (System 9500, System 300 and System 200) during one week from 30.8.99 until 5.9.99. Four points have been observed 7 hours all days as permanent stations, the other points have been observed at least two times during the campaign for 5 hours. The results of the campaigns 1994 and 1999 have been processed with the Bernese software 4.2 and the comparison with the final results of 1991/1992 shows significant deformations of about 4mm/year. During the processing 3 different types of baseline strategies have been compared. The availability of at least 6 satellites during all sessions, long observation times and short baselines enabled a detection of significant movements in a 2D-deformation analysis. The paper explains the strategies of building baselines, the estimation of final coordinates and the results of the deformation analysis. It gives furtheron an outlook on possible future activities concerning 3D-deformation-analysis.

Słowa kluczowe

EN

GPS project; monitoring

PL

GPS projekt; monitorowanie

• Wydawca: Wydział Geodezji i Kartografii Politechniki Warszawskiej
• Czasopismo: Reports on Geodesy
• Rocznik: 2001
• Tom: z. 2/57
• Strony: 21--28
• Opis fizyczny: Bibliogr. 9 poz., schem.

Twórcy

autor

Schmitt G.

autor

Lemp D.

• Geodetic Institute, University of Karlsruhe Germany

Bibliografia

• 1. Anderson H. and J. Jackson (1987): Active Tectonics in the Adriatic Region. Geophys. J.R. Astr. Soc. 91, 937-983.
• 2. Bilajbegovic A., Schellein H., Czobor A., Hoggerl N., Nemeth Z., Vanko J., Vodopivec F., Vyskocil P. and T. Wyrzykowski (1994): Catalogue of the annual velocities of vertical movements at the territory od CEI member countries. Bulletin 41, International Center on Recent Crustal Movements, Praha.
• 3. Lemp D. (2000): AbschluBbericht “Alpentraverse 1999". Internal report, Geodetic Institute, University of Karlsruhe.
• 4. Mierlo J. van, Oppen S. and M. Vogel (1997): Monitoring of recent crustal movements in the Eastern Alps with the Global Positioning System (GPS). Tectonophysics 275, 273-283.
• 5. Neubauer F. (1994): Kontinentkollision in den Ostalpen. Geowissenschaften 12(5-6), 136-140.
• 6. Nkuite G. and R. Jäger (1994): Extemal Accuracy Modelling in a Coordinate Referre Approach and its Impact on Sensitivity and Deformation Analysis. In: Papo H. (Ed.): Proceedings of the Perelmuter Workshop on Dynamie Deformation Models, Haifa, Israel, 29.08.-01.09.1994, 303-314.
• 7. Schmitt G. and C. Marchesini (1999): Geodetic Activities with Respect to Geokinematics in Friuli and the Eastern Alps. Proceedings of the Second International Symposium Geodynamics of the Alps-Adria Area by means of Terrestrial and Satellite Methods, Dubrovnik, Croatia, 28.09.-02.10.98, 283-292
• 8. Slejko D., Carulli G.B., Nicolich R., Rebez A., Zanferrari A., Cavallin A., Doglioni C., Carraro F., Castaldini D., lliceto V., Semenza E. and C. Zanolla (1989): Seismotectonics of the Eastern Southern Alps: A Revicw. Bolletino di Geofisica Teorica e Applicata 31, 109-136.
• 9. Vogel M. (1995): Analyse der GPS-Alpentraverse. Ein Beitrag zur geodätischen Erfassung rezenter Krustenbewegungen in den Ostalpen. Deutsche Geodütische Kommission, Report C 436, München.