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Journal Article

EGM_TIM_RL05: An independent geoid with centimeter accuracy purely based on the GOCE mission

Authors

Brockmann,  J. M.
External Organizations;
Publikationen aller ICGEM-unterstützten Projekte, Deutsches GeoForschungsZentrum;

Zehentner,  N.
External Organizations;
Publikationen aller ICGEM-unterstützten Projekte, Deutsches GeoForschungsZentrum;

Hock,  E.
External Organizations;
Publikationen aller ICGEM-unterstützten Projekte, Deutsches GeoForschungsZentrum;

Pail,  R.
External Organizations;
Publikationen aller ICGEM-unterstützten Projekte, Deutsches GeoForschungsZentrum;

Loth,  I.
External Organizations;
Publikationen aller ICGEM-unterstützten Projekte, Deutsches GeoForschungsZentrum;

Mayer-Gurr,  T.
External Organizations;
Publikationen aller ICGEM-unterstützten Projekte, Deutsches GeoForschungsZentrum;

Schuh,  W. D.
External Organizations;
Publikationen aller ICGEM-unterstützten Projekte, Deutsches GeoForschungsZentrum;

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Citation

Brockmann, J. M., Zehentner, N., Hock, E., Pail, R., Loth, I., Mayer-Gurr, T., Schuh, W. D. (2014): EGM_TIM_RL05: An independent geoid with centimeter accuracy purely based on the GOCE mission. - Geophysical Research Letters, 41, 22, 8089-8099.
https://doi.org/10.1002/2014gl061904


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_1833989
Abstract
After more than 4.5 years in orbit, the Gravity field and steady-state Ocean Circulation Explorer (GOCE) mission ended with the reentry of the satellite on 11 November 2013. This publication serves as a reference for the fifth gravity field model based on the time-wise approach (EGM_TIM_RL05), a global model only determined from GOCE observations. Due to its independence of any other gravity data, a consistent and homogeneous set of spherical harmonic coefficients up to degree and order 280 (corresponding to spatial resolution of 71.5km on ground) is provided including a full covariance matrix characterizing the uncertainties of the model. The associated covariance matrix realistically describes the model quality. It is the first model which is purely based on GOCE including all observations collected during the entire mission. The achieved mean global accuracy is 2.4cm in terms of geoid heights and 0.7mGal for gravity anomalies at a spatial resolution of 100km.