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Ekscentar, No. 17, 2014.

Review article

Global geopotential models from 2006 to 2014

Martina Idžanović ; graduate studies, Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Ivana Krešić ; graduate studies, Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Sara Baraba ; graduate studies, Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Tamara Juretić ; graduate studies, Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Luka Rumora orcid id orcid.org/0000-0002-2362-6685 ; graduate studies, Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Matija Videković ; graduate studies, Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Mario Švarc ; graduate studies, Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Igor Matišić ; graduate studies, Faculty of Geodesy, University of Zagreb, Zagreb, Croatia

Full text: croatian pdf 1.147 Kb

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Abstract

High-resolution global gravity field models play a fundamental role in geodesy and Earth sciences, ranging from practical purposes, like precise orbit determination, to scientific applications, like investigation of the density structure of the Earth’s interior. Nowadays, global gravity field models, mainly derived from satellite measurements, become more and more detailed and accurate. An important task
of geodesy is to make the gravity field functionals available to other geosciences. It is necessary to calculate the corresponding functionals
as accurately as possible from a given global gravity field models and, if required, with simultaneous consideration of the topography
models determined by modern satellite methods independently from the gravity field. This paper is based on seminar papers which were
made within the subject “Determination of the Earth’s shape” in academic year 2013/2014 (Master Studies, Department of Geomatics at the Faculty of Geodesy, Chair for State Survey). Comparisons of geoid undulations and free air gravity anomalies between geopotential
models of 2006, 2008, 2011, 2012, 2013 and 2014 are presented.

Keywords

global geopotential models; geoid undulation; free air gravity anomaly

Hrčak ID:

125536

URI

https://hrcak.srce.hr/125536

Publication date:

26.6.2014.

Article data in other languages: croatian

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