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  The Ohio State 1991 Geopotential and Sea Surface Topography Harmonic Coefficient Models

Rapp, R., Wang, Y., Pavlis, N. (1991): The Ohio State 1991 Geopotential and Sea Surface Topography Harmonic Coefficient Models, (Reports of the Department of Geodetic Science and Surveying  ; 410), Columbus, Oh : The Ohio State University, Department of Geodetic Science, 94 p.

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_1834015 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_1834015_2
Genre: Report

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 Creators:
Rapp, R.H.1, 2, Author
Wang, Y.M.1, 2, Author
Pavlis, N.K.1, 2, Author
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1External Organizations, ou_persistent22              
2Publikationen aller ICGEM-unterstützten Projekte, Deutsches GeoForschungsZentrum, , , ou_1684888              

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 Abstract: The computation is described of a geopotential model to deg 360, a sea surface topography model to deg 10/15, and adjusted Geosat orbits for the first year of the exact repeat mission (ERM). This study started from the GEM-T2 potential coefficient model and it's error covariance matrix and Geosat orbits (for 22 ERMs) computed by Haines et al. using the GEM-T2 model. The first step followed the general procedures which use a radial orbit error theory originally developed by English. The Geosat data was processed to find corrections to the a priori geopotential model, corrections to a radial orbit error model for 76 Geosat arcs, and coefficients of a harmonic representation of the sea surface topography. The second stage of the analysis took place by doing a combination of the GEM-T2 coefficients with 30 deg gravity data derived from surface gravity data and anomalies obtained from altimeter data. The analysis has shown how a high degree spherical harmonic model can be determined combining the best aspects of two different analysis techniques. The error analysis was described that has led to the accuracy estimates for all the coefficients to deg 360. Significant work is needed to improve the modeling effort.

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 Dates: 1991
 Publication Status: Finally published
 Pages: 94
 Publishing info: Columbus, Oh : The Ohio State University, Department of Geodetic Science
 Table of Contents: -
 Rev. Type: -
 Identifiers: Other: 718266
URI: http://hdl.handle.net/2060/19920004288
 Degree: -

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Title: Reports of the Department of Geodetic Science and Surveying
Source Genre: Series
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Pages: - Volume / Issue: 410 Sequence Number: - Start / End Page: - Identifier: Report Nr.: 718266