Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Comparison of some methods for modifying stokes' formula in the GOCE ERA
KTH, Superseded Departments, Infrastructure.
KTH, Superseded Departments, Infrastructure.
2004 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The dedicated satellite gravity mission GOCE will drastically improve our knowledge of the long to medium wavelengths of the Earth's gravity field. In order to determine the finest details in regional geoid determination, however, we still have to utilise gravity data. It is the purpose of this paper to study three modifications of Stokes' formula numerically, using error propagations with simulated standard errors for the GOCE potential coefficients. The methods tested are the standard remove-compute-restore, the least squares, and the low-degree GOCE-only modifications. In the latter technique it is required that only GOCE information must influence the determination of the lowest degrees. It is concluded that of the modifications tested, the least squares method is most suitable to be used with a GOCE satellite-only model. This is the case also when pessimistic weights are used for the gravity anomalies. The main fault with the standard remove-compute-restore method is its sensitivity to long-wavelength errors in the gravity anomalies, while a very large truncation error is the most serious problem for the low-degree GOCE-only technique.

Place, publisher, year, edition, pages
2004. no 569, p. 225-230
Series
European Space Agency, (Special Publication) ESA SP, ISSN 0379-6566
Keywords [en]
Error analysis, Gravitation, Harmonic analysis, Magnetometers, Mathematical models, Spectrum analysis, Earth Gravity Model (EGM), Error propagation, Satellite Gravity Gradiometry (SGG), Stokes' formula, Satellites
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-157292Scopus ID: 2-s2.0-22144493013OAI: oai:DiVA.org:kth-157292DiVA, id: diva2:771194
Conference
Second International GOCE User Workshop: GOCE, The Geoid and Oceanography, 8 March 2004 through 10 March 2004, Frascati, Italy
Note

QC 20141212

Available from: 2014-12-12 Created: 2014-12-08 Last updated: 2016-12-16Bibliographically approved

Open Access in DiVA

No full text in DiVA

Scopus

Search in DiVA

By author/editor
Ågren, JonasSjöberg, Lars Erik
By organisation
Infrastructure
Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 33 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf