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  Stochastic model refinements for GOCE gradiometry data

Krasbutter, I., Brockmann, J. M., Kargoll, B., Schuh, W.-D. (2010): Stochastic model refinements for GOCE gradiometry data. - In: Münch, U., Dransch, W. (Eds.), (GEOTECHNOLOGIEN Science Report ; 17), Potsdam : GEOTECHNOLOGIEN, 70-76.
https://doi.org/10.2312/GFZ.gt.17.11

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_23129 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_23129_3
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http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:23084 (Supplementary material)
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Gesamtausgabe GEOTECHNOLOGIEN Science Report No. 17

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 Creators:
Krasbutter, I.1, Author
Brockmann, J. M.1, Author
Kargoll, B.1, Author
Schuh, W.-D.1, Author
Affiliations:
1Observation of the System Earth from Space : GEOTECHNOLOGIEN Science Report 17, GEOTECHNOLOGIEN Science Report, External Organizations, ou_persistent22              

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 Abstract: In our approach to gravity field determination, the GOCE data are processed sequentially on a parallel computer system, iteratively via application of the method of preconditioned conjugate gradient multiple adjustment (PCGMA), and in situ via development of the functionals at the actual location and orientation of the gradiometer. GOCE gradiometry (SGG) data are auto-correlated in their three components Vxx, Vyy and Vzz so that one purpose of PCGMA is the adjustment of the unknown stochastic model of the gradiometer observations, described by decorrelation filters. A sequence of Auto Regressive-Moving Average (ARMA) filters is adjusted to the actual measurement noise to remove these correlations from the observations. This adjustment is refined iteratively, as it is embedded in the estimation of the gravity field parameters. In this contribution we show the effects of various filter complexities on the final gravity field solution and the corresponding error estimates based on two months of GOCE data.

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Language(s): eng - English
 Dates: 2010
 Publication Status: Finally published
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.2312/GFZ.gt.17.11
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Title: GEOTECHNOLOGIEN Science Report
Source Genre: Series
 Creator(s):
Münch, Ute1, Editor
Dransch, Werner1, Editor
Affiliations:
1 Observation of the System Earth from Space : GEOTECHNOLOGIEN Science Report 17, GEOTECHNOLOGIEN Science Report, External Organizations, ou_24019            
Publ. Info: Potsdam : GEOTECHNOLOGIEN
Pages: 199 Volume / Issue: 17 Sequence Number: 11 Start / End Page: 70 - 76 Identifier: ISSN: 1619-7399