Precise geoid estimation in the Brennero area

• Autorzy: Barzaghi R. , Borghi A. , Kuehtreiber N. , Sona G.
• Konferencja: 7th Bilateral Geodetic Meeting Italy-Poland (7; 22-24.05.2003; Bressanone, Italy)
• Języki publikacji: EN

Abstrakty

EN

The geoid estimation procedure in the Brennero area was divided in two steps. A data analysis was firstly performed to define possible data onconsistency and deficiencies. Then a gravimetric geoid was estimated according to the well known "remote-restore" procedure. Different techniques to account for the topographic signal were applied and the residual geoid estimate has been computed using Least Squares Collocation (LSC) and Fast Collocation. EGM96 and GPM98CR global geopotential models were also tested to select the one giving the best fit for the long wavelength component of the geopotential field of the area. Geoid undulations were computed on a regular 3`x3` geographical grid in the area 46.25

Słowa kluczowe

EN

satellite geodesy; scientific research; geoid

PL

badania naukowe; geoidy

• Wydawca: Wydział Geodezji i Kartografii Politechniki Warszawskiej
• Czasopismo: Reports on Geodesy
• Rocznik: 2003
• Tom: z. 2/65
• Strony: 279--288
• Opis fizyczny: Bibliogr. 11 poz., schem., tab.

Twórcy

autor

Barzaghi R.

• Politecnico di Milano, Italy

autor

Borghi A.

• Politecnico di Milano, Italy

autor

Kuehtreiber N.

• Technical Universtity, Graz

autor

Sona G.

• Politecnico di Milano, Italy

Bibliografia

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• [4] Borghi, A (1999): The Italian geoid estimate: present state and future perspectives. Tesi di dottorato in Scienze Geodetiche e Topografiche, Politecnico di Milano, XII ciclo ( I 996-1999).
• [5] Denker H, Torge W. (1998): The Europen gravimetric quasigeoid EGG97 - An IAG supported continental enterprise. IAG Symp. Proceed., IAG Scient. Ass. Rio de Janeiro, 1997. Springer, Berlin-Heidelberg-New York.
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• [7] Kuehtreiber, N. (1998): Improved gravimetric geoid AGG97 in Austria. In Forsber R., Feissel M. and Dietrich R. Eds. Geodesy on the Move: Gravity, Geoid, Geodynamics and Antarctica. IAG Symposia 119, Rio de Janeiro, 1997, 306-311.
• [8] Lemoine, F.G., Kenyon, SC., Factor, J.K., Trimmer, R.G., Pavlis, N.K., Chinn, D.S, Cox, C.M, Klosko, S.M., Luthcke, S.B., Torrence, M.H., Wang, Y.M., Williamson, R.G., Pavlis, E.C., Rapp, R.H., Olson, T.R. (1998): The development of the joint NASA GSFC and the National Imaginery and Mapping Agency (NIMA) geopotential model EGM96. NASA Report TP-1998-206861, Goddard Space Flight Center.
• [9] Tscherning, C.C., P. Knudsen and R. Forsberg (1994): Description of the GRAVSOFT package. Geophysical Institute, University of Copenhagen, Technical Report, 4th Ed.
• [10] Tscherning, C.C. (1994): Geoid determination by least-squares collocation using GRAVSOFT. Lectures Notes of the International School for the Determination and Use of the Geoid. JGeS, DHAR, Politecnico di Milano.
• [11] Wenzel, G. (1998): Ultra high degree geopotential models GPM98A, B and C to degree 1800.Proceedings Joint Meeting of the International Gravity Commission and International Geoid Commission, September 7 -12, Trieste 1998. Bollettino di Geofisica teorica ed applicata.