Long-wavelength global gravity field models: GRIM4-S4, GRIM4-C4

Schwintzer, P.; Reigber, C.; Bode, Arndt; Kang, Z.; Zhu, S. Y.; Massmann, F. H.; Raimondo, J. C.; Biancale, R.; Balmino, G.; Lemoine, J.; Moynot, B.; Marty, Jean‐Charles; Barlier, F.; Boudon, Y.

doi:10.1007/s001900050087

Cited by 66 publications

(20 citation statements)

References 14 publications

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“…This was possible at that time due to denser tracking data of newer altimetry missions like TOPEX/Poseidon and some others. One important milestone in this context was the generation of the JGM gravity field series (Tapley et al, 1996), followed by the publication of the model GRIM4-S4/C4 (Schwintzer et al, 1997). Its subsequent geopotential model GRIM5-S1 (Biancale et al, 2000) is based on analyses of gravitational satellite orbit perturbations from 21 satellites at the altitudes between 400 km (GFZ-1) and 20,000 km (Etalon-1 and Etalon-2) and contains the spherical harmonic coefficients up to degree 99 together with the linear drifts for C 2,0 , C 3,0 and C 4,0 coefficients.…”

Section: Introductionmentioning

confidence: 99%

Influence of time variable geopotential models on precise orbits of altimetry satellites, global and regional mean sea level trends

Rudenko

Dettmering²,

Esselborn

et al. 2014

Advances in Space Research

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Section: Introductionmentioning

confidence: 99%

Influence of time variable geopotential models on precise orbits of altimetry satellites, global and regional mean sea level trends

Rudenko

Dettmering²,

Esselborn

et al. 2014

Advances in Space Research

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“…These models are presented as sets of coefficientsC m andS m of a spherical harmonic expansion of the field and they provide information on the long wavelength part of the spectrum only. A representative example of one of the best currently available geopotential models, based purely on satellite orbit analysis (no altimetry, no terrestrial surface gravity), is the GRIM-4S gravity field model (Schwintzer et al, 1997). GRIM-5S which has recently become available is much better than GRIM-4S (Biancale et al, 2000).…”

Section: Available Gravity Data For Global Gravity Fields Modelmentioning

confidence: 99%

The European Gravity Field and Steady-State Ocean Circulation Explorer Satellite Mission: Its Impact on Geophysics

Johannessen

Balmino

Provost

et al. 2003

Surveys in Geophysics

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Abstract. Current knowledge of the Earth's gravity field and its geoid, as derived from various observing techniques and sources, is incomplete. Within a reasonable time, substantial improvement will come by exploiting new approaches based on spaceborne gravity observation. Among these, the European Space Agency (ESA) Gravity field and steady-state Ocean Circulation Explorer (GOCE) satellite mission concept has been conceived and designed taking into account multi-disciplinary research objectives in solid Earth physics, oceanography and geodesy. Based on the unique capability of a gravity gradiometer combined with satellite-to-satellite high-low tracking techniques, an accurate and detailed global model of the Earth's gravity field and its corresponding geoid will be recovered. The importance of this is demonstrated by a series of realistic simulation experiments. In particular, the quantitative impact of the new and accurate gravity field and geoid is examined in studies of tectonic composition and motion, Glaciological Isostatic Adjustment, ocean mesoscale variability, water mass transport, and unification of height systems. Improved knowledge in each of these fields will also ensure the accumulation of new understanding of past and present sea-level changes.

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“…Rapp et al 1991;Rapp 1997a, b), GRIM4 (cf. Schwintzer et al 1997), GRIM4-S4 (cf. Schwintzer 1997) and EGM96 (cf.…”

Section: Spherical Harmonicsmentioning

confidence: 99%

Constructive approximation and numerical methods in geodetic research today – an attempt at a categorization based on an uncertainty principle

Freeden

Michel

1999

Journal of Geodesy

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Current activities and recent progress on constructive approximation and numerical analysis in physical geodesy are reported upon. Two major topics of interest are focused upon, namely trial systems for purposes of global and local approximation and methods for adequate geodetic application. A fundamental tool is an uncertainty principle, which gives appropriate bounds for the quanti®cation of space and momentum localization of trial functions. The essential outcome is a better understanding of constructive approximation in terms of radial basis functions such as splines and wavelets.

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Long-wavelength global gravity field models: GRIM4-S4, GRIM4-C4

Cited by 66 publications

References 14 publications

Influence of time variable geopotential models on precise orbits of altimetry satellites, global and regional mean sea level trends

Influence of time variable geopotential models on precise orbits of altimetry satellites, global and regional mean sea level trends

The European Gravity Field and Steady-State Ocean Circulation Explorer Satellite Mission: Its Impact on Geophysics

Constructive approximation and numerical methods in geodetic research today – an attempt at a categorization based on an uncertainty principle

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