Abstract
A new high resolution Earth gravity field model with harmonic coefficients complete to degree and order 360 is presented. As in an earlier solution, a-priori information is taken from the GRIM4 gravity field (complete to degree and order 50). High frequency determination is based on both, surface gravity and ocean geoid heights. Surface gravity is corrected for topographic and atmospheric effects. Ocean geoid heights were derived from a one year mean sea surface height model determined from Geosat altimetry and corrected for sea surface topography and permanent tidal deformation.
The estimation of the 360 field is based on a rigorous least squares harmonic analysis. With globally distributed, equally spaced data sets, the normal equation system decomposes to block diagonal structure. Undefined data are successively substituted by block mean values from intermediate results. Data preparation and weighting scheme of a-priori information and surface data have been improved for the present solution.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Anzenhofer M., Spöcker T., Bosch W., Sea Surface Height Modelling with Improved Geosat Altimeter Data; Anales Geophysicae; Supplement to Volume 10; 1992a
Anzenhofer M., Spöcker T., Bosch W., Sea Surface Height Modelling with Improved Geosat Altimeter Data; Anales Geophysicae; Supplement to Volume 10; 1992a
Basic T., Denker H., Knudsen P., Solheim D., Torge W., A New Geopotential Model Tailored to Gravity Data in Europe; IAG Symposia Proceedings; Gravity Gradiometry and Gravimetry; Vol. 103; Springer Verlag; Berlin Heidelberg New York; 1989
Bosch W., Gruber Th., Altimetry Based Geoid Determination at the German Processing and Archiving Facility within the ERS-1 Project; Proceedings of IAG Symposium No. 106 - Determination of the Geoid, Present and Future; Springer Verlag; New York; 1991
Lerch EJ., Nerem R.S., Putney B.H., Felsentreger T.L., Sanchez B.V., Klosko S.M., Patel G.B., Williamson R.G., Chinn D.S., Chan J.C., Rachlin K.E., Chandler N.L., McCarthy J.J., Marshall J.A., Luthcke S.B., Pavlis D.W., Robbins J.W., Kapoor S., Pavlis E.C., Geopotential Models of the Earth from Satellite Tracking, Altimeter and Surface Gravity Observations: GEM-T3 and GEMT3S; NASA Technical Memorandum 104555; NASA; 1992
Rapp R., The Treatment of Permanent Tidal Effects in the Analysis of Satellite Altimeter Data for Sea Surface Topography; Manuscripta Geodaetica; 14, 368–372; 1989
Rapp R., Kim J.H., The Development of the July 1x1 Degree and 30x30 Minutes Terrestrial Mean Free-Air Anomaly Data Bases; Ohio State University, Department of Geodetic Science and Surveying, Report No. 403; Columbus, Ohio; 1990
Rapp R.H., Wang Y.M., Pavlis N.K., The Ohio State 1991 Geopotential and Sea Surface Topography Harmonic Coefficient Models; Ohio State University, Department of Geodetic Science and Surveying, Report No. 410; Columbus, Ohio; 1991
Reigber Ch., Bosch W., Flechtner F., König R., Massmann F.H., Schwintzer P., Wilmes H., RAT Product Specification Document; ERS-D-PSD-30000, Issue 1.1; Deutsches Geodätisches Forschungsinstitut, Abt. 1 ( DGFI ); Munchen; 1990
Schwintzer P., Reigber Ch., Massmann F.H., Barth W., Raimondo J.C., Gerstl M., Li H., Biancale R., Bal-mino G., Moynot B., Lemoine J.M., Marty J.C., Boudon Y., Barlier F., A New Gravity Field Model in Support of ERS-1 and SPOT-2: GRIM4–S1 ICI; Final Report to the German Space Agency (DARA) and the French Space Agency (CNES); DGFI/GRGS; M inchen/Toulouse; 1991
Wieser M., Das Globale Digitale Höhenmodell TUG87; Interner Bericht; Technische Universität Graz; Graz; 1987
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1993 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Gruber, T., Bosch, W. (1993). OGE12, A New 360 Gravity Field Model. In: Montag, H., Reigber, C. (eds) Geodesy and Physics of the Earth. International Association of Geodesy Symposia, vol 112. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-78149-0_22
Download citation
DOI: https://doi.org/10.1007/978-3-642-78149-0_22
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-56572-7
Online ISBN: 978-3-642-78149-0
eBook Packages: Springer Book Archive