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Consolidated science and user requirements for a next generation gravity field mission

Abstract : In an internationally coordinated initiative among the main user communities of gravity field products the science and user requirements for a future gravity field mission constellation (beyond GRACE-FO) have been reviewed and defined. This activity was realized as a joint initiative of the IAG (International Association of Geodesy) Sub-Commissions 2.3 and 2.6, the GGOS (Global Geodetic Observing System) Working Group on Satellite Missions, and the IUGG (International Union of Geodesy and Geophysics). After about one year of preparation, in a user workshop that was held in September 2014 consensus among the user communities of hydrology, ocean, cryosphere, solid Earth and atmosphere on consolidated science requirements could be achieved. The consolidation of the user requirements became necessary, because several future gravity field studies have resulted in quite different performance numbers as a target for a future gravity mission (2025+). Based on limited number of mission scenarios which took also technical feasibility into account, a consolidated view on the science requirements among the international user communities was derived, research fields that could not be tackled by current gravity missions have been identified, and the added value (qualitatively and quantitatively) of these scenarios with respect to science return has been evaluated. The resulting document shall form the basis for further programmatic and technological developments. In this contribution, the main results of this initiative will be presented. An overview of the specific requirements of the individual user groups, the consensus on consolidated requirements as well as the new research fields that have been identified during this process will be discussed.
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https://hal-insu.archives-ouvertes.fr/insu-01137862
Contributor : Isabelle Dubigeon <>
Submitted on : Tuesday, March 31, 2015 - 3:47:01 PM
Last modification on : Friday, April 5, 2019 - 8:17:38 PM

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  • HAL Id : insu-01137862, version 1

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Roland Pail, Rory Bingham, Carla Braitenberg, Annette Eicker, Martin Horwath, et al.. Consolidated science and user requirements for a next generation gravity field mission. European Geoscience Union General Assembly 2015, European Geoscience Union, Apr 2015, Vienne, Austria. pp.EGU2015-1648. ⟨insu-01137862⟩

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