Global gravity field determination with regional refinements by the analysis of GOCE-level-1b data (GLOREGOCE)

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Shabanloui, A.; Schall, J.; Eicker, A.; Kusche, J.: Global gravity field determination with regional refinements by the analysis of GOCE-level-1b data (GLOREGOCE). Poster (2012)

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Sum total of downloads: 29




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Abstract: 
In this contribution, we present regionally refined gravity field models from GOCE data only using the short arc processing. For easy comparison, regional solutions calculated on small patches all over the globe have been merged and transformed to a spherical harmonic expansion by means of quadrature methods. The power of the regional approach is demonstrated by comparison to the previously calculated ITG-Goce01/ITG-Goce02 spherical harmonic models, which are based on exactly the same processing strategy, standards and data time span. We show, that these global models are comparable in accuracy with respect to the official ESA time-wise models. Second, we verify the gain of regional modelling with respectto our global models: Compared to EGM08 cut to the oceans, using a land/ocean adjustment of regularisation reduces the global noise by 11%. A more tailored choice of the regularisation areas tested for the South Sandwich Trench reveals the significant improvement of 18%.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
Document Type: Other
Publishing status: publishedVersion
Issue Date: 2012-05-24
Appears in Collections:Fakultät für Bauingenieurwesen und Geodäsie

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pos. country downloads
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1 image of flag of Germany Germany 23 79.31%
2 image of flag of Malaysia Malaysia 2 6.90%
3 image of flag of Sri Lanka Sri Lanka 1 3.45%
4 image of flag of India India 1 3.45%
5 image of flag of Czech Republic Czech Republic 1 3.45%
6 image of flag of Belgium Belgium 1 3.45%

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