A new geoid for Brunei Darussalam by the collocation method

• Autorzy: Lyszkowicz A. , Birylo M. , Becek K.

Identyfikatory

DOI

10.2478/geocart-2014-0013

Warianty tytułu

PL

Wyznaczenie przebiegu nowej geoidy na obszarze Brunei Darussalam metodą kolokacji

• Języki publikacji: EN

Abstrakty

EN

Computation of a new gravimetric geoid in Brunei was carried out Rusing terrestrial, airborne and altimetric gravity data and the EGM08 geopotential model by the collocation method. The computations were carried out by the „remove-restore” technique. In order to have better insight in the quality of input data the estimation of accuracy of the gravity data and geoid undulations from GPS/levelling data was carried out using EGM08 geopotential model. It shows a poor quality of GPS/levelling data. Result of the computation is the gravimetric geoid for the territory of Brunei computed by collocation method with an accuracy estimated below of ±0.3 m.

PL

Wyznaczenie przebiegu nowej geoidy na obszarze Brunei zostało zrealizowane z wykorzystaniem lądowych, lotniczych i altimetrycznych danych grawimetrycznych oraz modelu geopotencjału EGM08 metodą kolokacji. Obliczenia zostały przeprowadzone z wykorzystaniem techniki „removerestore”. W celu uzyskania lepszego wglądu, w jakość danych wejściowych oszacowano dokładność danych grawimetrycznych i geometrycznych odstępów geoidy od elipsoidy na punkach sieci GPS wykorzystując do tego celu model geopotencjału EGM08. Z przyprowadzonych oszacowań wynika przede wszystkim niska dokładność danych GPS/niwelacja. Wynikiem przeprowadzonych obliczeń jest grawimetryczna geoida dla obszaru Brunei, obliczona metodą kolokacji, której dokładność szacuje się poniżej ±0.3 m.

Słowa kluczowe

EN

geoid; altimetric gravity; collocation method

PL

geoida; dane grawimetryczne; metoda kolokacji

• Wydawca: Komitet Geodezji PAN
• Czasopismo: Geodesy and Cartography
• Rocznik: 2014
• Tom: Vol. 63, no. 2
• Strony: 183--198
• Opis fizyczny: Bibliogr. 28 poz., rys., tab., wykr.

Twórcy

autor

Lyszkowicz A.

• University of Warmia and Mazury in Olsztyn Faculty of Geodesy and Land Management Depatment of Land Surveying and Geomatics Michala Oczapowskiego 2, 10-719 Olsztyn, Poland

autor

Birylo M.

• University of Warmia and Mazury in Olsztyn Faculty of Geodesy and Land Management Depatment of Land Surveying and Geomatics Michala Oczapowskiego 2, 10-719 Olsztyn, Poland

autor

Becek K.

• Wroclaw University of Environmental and Life Science Faculty of Environmental Engineering and Geodety Plac Grunwaldzki 24a, 50-365 Wrocław, Poland

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