Results 131 to 138 of about 914 (138)

A strict formula for geoid-to-quasigeoid separation

Journal of Geodesy, 2010
The paper presented by Flury and Rummel (J Geod 83:829–847, 2009) discusses an important topographic correction to the traditional formula for the quasigeoid-to-geoid separation. Nevertheless, as their formula is approximate, the reader may ask for its relation to the strict one (defined as the one consistent with Bruns’s formula and the boundary ...
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Test Computations for a Local Quasigeoid in Hungary Using FFT

1991
The Fast Fourier Transform (FFT) technique is an efficient and practical tool in geodesy for solving local gravity field approximation problems, among others for local geoid (quasigeoid) determination. In the future we plan to use the FFT procedure for its efficiency in computing a detailed gridded set of height anomalies for Hungary.
József Ádám, Heiner Denker
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GDQM-PL13 – the new gravimetric quasigeoid model for Poland

2014
The new gravimetric quasigeoid model GDQM-PL13 for Poland was determined. The 1’×1’ mean Faye anomalies, deflections of the vertical for the territory of Poland, gravity anomalies from the neighbouring countries and the EGM2008 were used as input data.
Szelachowska, Małgorzata, Krynski, Jan
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The European Gravimetric Quasigeoid EGG97 - An IAG Supported Continental Enterprise -

1998
In 1990, the Institut fur Erdmessung (IfE), University of Hannover, started with the calculation of a gravimetric (quasi)geoid for Europe and the surrounding marine areas, operating as the computing center of the International Association of Geodesy (IAG) Geoid Commission.
Heiner Denker, Wolfgang Torge
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The geoid-to-quasigeoid difference using an arbitrary gravity reduction model

Studia Geophysica et Geodaetica, 2012
Recently it was proved that the classical formula for computing the geoid to quasigeoid separation (GQS) by the Bouguer gravity anomaly needs a topographic correction. Here we generalize the modelling of the GQS not only to Bouguer types of anomalies, but also to arbitrary reductions of topographic gravity.
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On the quasigeoid to geoid separation

manuscripta geodaetica, 1995
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Gravimetric Measurements, Gravity Anomalies, Geoid, Quasigeoid: Theoretical Background and Multiscale Modeling/Gravimetrische Messungen, Schwereanomalien, Geoid, Quasigeoid: Theoretischer Hintergrund und Multiskalenmodellierung

2018
Gerhard Berg, Christian Blick, Matthias Cieslack, Willi Freeden, Zita Hauler, Helga Nutz   +5 more
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Studies of Latvian quasigeoid model LV14 (in Latvian)

2015
Vallis, Atis, Kaminskis, Janis, Teremko, Igors   +2 more
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