Evaluation of a Grace-Based Combined Geopotential Model over the Baltic Countries

Ellmann, Artu; Jürgenson, Harli

doi:10.3846/1392-1541.2008.34.35-44

Cited by 3 publications

(3 citation statements)

References 12 publications

(11 reference statements)

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“…The adopted gravity mass constant GM is set to 398600.4415 km 3 /s 2 in most recent geopotential models. 11 A typical geopotential model is often described by {C̅ nm , S nm } spherical harmonic coefficients. The values of {C̅ nm , S nm } coefficients decrease as the degree increases.…”

Section: Global Geopotential Modelsmentioning

confidence: 99%

Global geopotential models from Satellite Laser Ranging data with geophysical applications: A review

Botai

Combrinck

2012

S Afr J Sci

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The launch of artificial satellites (as early as in 1957), specifically the launch of the first laser tracked satellite, Beacon-B, in 1964, has provided data sets which have allowed researchers to probe the long to medium components of the gravitational field of the Earth. In particular, observational data recorded at satellite laser ranging tracking stations have since been used to develop models that quantify the global long-wavelength and medium-wavelength gravity field of the Earth. Currently, literature reviewing gravity field models with geophysical applications is scarce and not up to date. The most recent review paper was published more than a decade ago. In the interim, there has been an unprecedented increase in gravity field modelling, which can be attributed to the deployment of new and dedicated satellite missions. As a result, a number of existing geopotential models have been improved and new models have been developed. Each of these models differs in accuracy and spatial-temporal scale. This review extends the earlier review of gravity field models, by incorporating up-to-date research efforts in geopotential modelling with geophysical applications in oceanography, hydrology, geodesy and solid Earth science.

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Section: Global Geopotential Modelsmentioning

confidence: 99%

Global geopotential models from Satellite Laser Ranging data with geophysical applications: A review

Botai

Combrinck

2012

S Afr J Sci

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“…Earlier EGM-s were developed only up to maximum degree as of 360. Note that a study by Ellmann, Jürgenson (2008) evaluated the quality of the EGM96 (Lemoine et al 1998) and a GRACE-based EIGEN-GL04c (Förste et al 2006) over the Baltic countries. e resolution of a new combined EGM08 (Pavlis et al 2008) is 5´ arc-minutes (corresponding to 9 km, i.e.…”

Section: Introduction and Motivation Of The Studymentioning

confidence: 99%

“…Since some recent studies (Ellmann, Jürgenson 2008; have already evaluated the performance of the global geopotential models in the Baltic Sea area, then it is appropriate to investigate other challenges in further improvements of the geoid modeling in the Baltic Sea region.…”

Section: Introduction and Motivation Of The Studymentioning

confidence: 99%

Considerations on the further improvements of regional geoid modeling over the baltic countries

Ellmann

2010

Geodesy and Cartography

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is contribution reviews earlier geoid modeling research in the Baltic countries. e most commonly used modi cations of Stokes's formula are discussed. Similarities and di erences between stochastic and deterministic modi cation methods are outlined. Principles of selecting the geoid modeling methods and parameters are explained and numerically veri ed. e in uences of typical shortages of historic gravimetric datasets to geoid modeling are discussed. Suggestions for further data improvement and enhancements of other geoid modeling aspects are summarized.

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Sunkio lauko nevienalytiškumo tyrimų metodikos tobulinimas

Birvydienė¹

2014

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Evaluation of a Grace-Based Combined Geopotential Model over the Baltic Countries

Cited by 3 publications

References 12 publications

Global geopotential models from Satellite Laser Ranging data with geophysical applications: A review

Global geopotential models from Satellite Laser Ranging data with geophysical applications: A review

Considerations on the further improvements of regional geoid modeling over the baltic countries

Sunkio lauko nevienalytiškumo tyrimų metodikos tobulinimas

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