Refined Astrogravimetric Geoid in Poland - Part II

• Autorzy: Adam Łyszkowicz
• Języki publikacji: EN

Abstrakty

EN

In the part I of this paper theoretical background of astronomic levelling and least squares collocation methods were given. Furthermore both accuracy and weights of astrogeodetic and astrogravimetric deflections of the vertical were determined. In the present part II the astrogeodetic and astrogravimetric geoid models are developed from improved deflections of the vertical with the use of astronomical levelling and least squares collocation. In order to assess their accuracy all four computed models are tested on sites of satellite POLREF network connected to precise levelling network. (fragment of text)

Słowa kluczowe

PL

Geodezja; Metoda najmniejszych kwadratów; Systemy satelitarne

EN

Geodesy; Least squares method; Satellite systems

• Czasopismo: Geomatics and Environmental Engineering
• Rocznik: 2010
• Numer: nr 4/2
• Strony: 63-73

Twórcy

autor

Adam Łyszkowicz

• University of Warmia and Mazury in Olsztyn, Poland

Bibliografia

• Bokun J.: Geoid determination in Poland on the base of astrogravimetric and gravity data. Prace Instytutu Geodezji i Kartografii, t. VIII, z. 1 (17), 1961, pp. 7-15 (in Polish).
• Forsberg R.: A new covariance model for inertial gravimetry and gradiometry. Journal of Geophysical Research, Vol. 92, B2, 1987, pp. 1305-1310.
• Hofmann-Wellenhof B., Moritz H.: Physical Geodesy. 2nd Ed., Springer Verlag, 2006.
• Lyszkowicz A.: Efforts Towards a Preliminary Gravimetric Geoid Computations in Poland Area. International Association of Geodesy Symposia, 106, "Determination of the geoid - present and future", Springer Verlag, New York 1991, pp. 269-276.
• Monka F.M., Torge W., Weber G., Wenzel H.G.: Improved Vertical Deflection and Geoid Determination in the North Sea Region. Wissenschaftliche Arbeiten der Fachrichtung Vermessungswesen der Universität Hannover, No. 94, Hannover 1979.
• Tscherning C., Forsberg R., Knudsen P.: The GRAVSOFT package for geoid determination. First Continental Workshop on the Geoid in Europe "Towards a Precise Pan-European Reference Geoid for the Nineties", Prague 11-14.05.1992.