Encyclopedia of Geodesy

Living Edition
| Editors: Erik Grafarend

CHAMP-, GRACE-, GOCE-Satellite Projects

  • Roland PailEmail author
Living reference work entry
DOI: https://doi.org/10.1007/978-3-319-02370-0_29-1

Definition

The launch of the first generation of satellite gravity missions, i.e., CHAMP (Challenging Minisatellite Payload; Reigber et al., 2002), GRACE (Gravity Recovery and Climate Experiment; Tapley et al., 2004), and GOCE (Gravity Field and Steady-State Ocean Circulation Explorer; Drinkwater et al., 2003), has revolutionized our knowledge of the global Earth’s gravity field and its temporal changes, which are related to geophysical processes of mass redistribution on our planet. Since they are the only measurement technique which can directly observe mass changes on a global scale, they are a unique observational system for monitoring mass transport in the Earth system.

Still 15 years ago, this knowledge was limited (a) spatially, mainly due to a very heterogeneous distribution and quality of terrestrial gravity observations, and (b) temporally, due to a lack of repeat measurements. The great advantage of satellite-based techniques is to observe the Earth’s gravity field on a...
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References and Reading

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Institute of Astronomical and Physical GeodesyTechnischeUniversitätMünchenMunichGermany