Application of the global geopotential models for determination of the levelling normal correction

• Autorzy: Marganski S. , Kalinczuk-Stanałowska K. , Olszak T.
• Konferencja: Geodetic and Geodynamic Programmes of the Central Europe / Procedings of the EGU G13 Symposium (2-7. 05. 2010; Vienna, Austria)
• Języki publikacji: EN

Abstrakty

EN

Vertical networks in Poland are processed in the normal heights system called Kronstatt'86. Levelling evaluation of high precision measurements requires a determinations of normal levelling corrections, based on gravity Faye's anomalies. The purposes of the paper is to analyze the possibility of using in this computations the anomalies generated from global geopotential models while maintaining accuracy analysis which indicate a possible accuracy of Faye's anomalies. Author have compared gravity anomalies obtained directly from measurements with gravity anomalies generated from different global geopotential models EGM96, PGM96, EGM2008. Authors have prospered an algorithm of gravity anomalies computation on geoid surface after free-air moving anomalies from geopotential models. Comparison was made on points of vertical network located in medium-hill areas (around Starachowice near Kielce) and lowland (around Gostyn and Grudziadz) and on others test fields in Poland. The ability to use the geopotential models depends on their resultation. As a result of analysis concluded that only in the plain and lowland areas is possible to use data from global geopotential models with resolution above degree 720.

Słowa kluczowe

EN

geopotential models; surveys

PL

modele geopotencjalne; pomiary geodezyjne

• Wydawca: Wydział Geodezji i Kartografii Politechniki Warszawskiej
• Czasopismo: Reports on Geodesy
• Rocznik: 2010
• Tom: z. 1/88
• Strony: 115--120
• Opis fizyczny: Bibliogr. 5 poz., rys., wykr.

Twórcy

autor

Marganski S.

autor

Kalinczuk-Stanałowska K.

autor

Olszak T.

• Departament of Geodesy and Geodetic Astronomy, Warsaw Uniwersity of Technology, Warsaw, Poland

Bibliografia

• [1] Pavlis N.K.: „Development and Applications of Geopotential Models”, Second International School for the Determination and use of the Geoid, Rio de Janeiro, Brazil, 10-16.09.1997.
• [2] Pavlis, N.K., Holmes S.A., Kenyon S.C., Factor J.K.: An Earth Gravitational Model to Degree 2160: EGM2008; presented at the 2008 General Assembly of the European Geosciences Union, Vienna, Austria, April 13-18, 2008.
• [3] Schwintzer Peter: "The gravity field of the Earth: global gravitational potential models", International School for the Determination and use of the Geoid, Budapest 2005.
• [4] Wenzel G.: “Ultra high degree geopotential models GPM98A, B and C to degree 1800” - Submitted to Proceedings Joint Meeting of the International Gravity Commission and International Geoid Commission, September 7 -12, Trieste 1998. Bollettino di Geofisica teorica ed applicata.