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Deriving orthometric height using global geopotential models (GGMs)
2016 7th IEEE Control and System Graduate Research Colloquium (ICSGRC), 2016The purpose of this paper is to evaluate the orthometric height derived by combination of Global Navigation Satellite System (GNSS) data and global geoid height information over Peninsular Malaysia. The global geoid height information is derived from recent Global Geopotential Models (GGMs); combined and satellite-only solution.
Saiful Aman Hj Sulaiman +4 more
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Spectral analysis of block averaged data in geopotential global model determination
Journal of Geodesy, 1995The recovery of the harmonic coefficients of the anomalous potential from a geodetic quantity sampled over a regular grid is affected by the non-exact discrete orthogonality of spherical harmonics; larger errors occur for block-average quantities owing to the non-simple behaviour of the block-average operator when applied to spherical harmonics ...
A. ALBERTELLA, SACERDOTE, FAUSTO
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Information measures for global geopotential models
Journal of Geodesy, 1996zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Rigorous evaluation of global geopotential models for geoid modelling: A case study in Kenya
Journal of African Earth Sciences, 2022Developing a gravimetric geoid model requires gravity data covering the whole surface of the earth. In practice, terrestrial data within a spherical cap is used, causing a truncation error, which may be minimised if the terrestrial data is combined with a Global Geopotential Model (GGM). The choice of a GGM that fits the observed terrestrial data best,
Chivatsi Jonathan Nyoka +3 more
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Application of global geopotential models to high-precesion levelling processing
Geodesy and Cartography, 2017The article studies the properties of the high-degree gravity field model EGM-2008 in the calculation of integral characteristics at large distances several times greater than the spatial resolution of the model. As an example of an indirect evaluation of a high-degree model, a gravimetric correction was computed into the sum of the measured ...
V.V. Popadyev, D.A. Kuliev
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Accuracy Estimates of Geopotential Models and Global Geoids
1996The authors have developed a theoretical Geopotential Model Testing (GMT) methodology and applied it to existing data. The GMT method was developed without hypothesis regarding the geoid or the internal mass distribution of the Earth. The testing accuracy is limited only by the observational errors at the testing sites.
Kenneth F. Burke +3 more
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A new method of improving global geopotential models regionally using GNSS/levelling data
Geophysical Journal International, 2020In this paper, a new method for regionally improving global geopotential models (GGMs) with global navigation satellite system (GNSS)/levelling data is proposed.
W. Liang +3 more
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Evaluation of Recent Global Geopotential Models in Argentina
2010Recent Earth Geopotential Models (EGMs) represent a great improvement to several applications related to gravity field modeling. These models offer higher accuracy and better resolution of the gravity field.
A. Pereira, M. C. Pacino
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Journal of Applied Geophysics, 2018
Abstract The objective of this paper is to demonstrate the usefulness of absolute gravity data for the validation of Global Geopotential Models (GGMs). It is also aimed at improving quasigeoid heights determined from satellite-only GGMs using absolute gravity data.
Walyeldeen Godah +2 more
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Abstract The objective of this paper is to demonstrate the usefulness of absolute gravity data for the validation of Global Geopotential Models (GGMs). It is also aimed at improving quasigeoid heights determined from satellite-only GGMs using absolute gravity data.
Walyeldeen Godah +2 more
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Survey Review
A gravimetric geoid model was computed by using the Least Squares Modification of Stokes' formula, called the KTH (Royal Institute of Technology) method. This paper examines the impact of global geopotential models (GGMs) on the gravimetric geoid that we
N. Yılmaz, L. Cakir
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A gravimetric geoid model was computed by using the Least Squares Modification of Stokes' formula, called the KTH (Royal Institute of Technology) method. This paper examines the impact of global geopotential models (GGMs) on the gravimetric geoid that we
N. Yılmaz, L. Cakir
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