10.5880/ICGEM.COST-G.002 Meyer, Ulrich Ulrich Meyer 0000-0002-3379-9213 AIUB Astronomical Institute University of Bern, Bern, Switzerland Lasser, Martin Martin Lasser AIUB Astronomical Institute University of Bern, Bern, Switzerland Jaeggi, Adrian Adrian Jaeggi 0000-0002-5624-3410 AIUB Astronomical Institute University of Bern, Bern, Switzerland Dahle, Christoph Christoph Dahle 0000-0002-4733-9242 GFZ German Research Centre for Geosciences, Potsdam, Germany Flechtner, Frank Frank Flechtner 0000-0002-3093-5558 GFZ German Research Centre for Geosciences, Potsdam, Germany Kvas, Andreas Andreas Kvas 0000-0003-1199-7742 IFG Institute of Geodesy, Graz University of Technology, Graz, Austria Behzadpour, Saniya Saniya Behzadpour 0000-0003-1187-3862 IFG Institute of Geodesy, Graz University of Technology, Graz, Austria Mayer-Gürr, Torsten Torsten Mayer-Gürr 0000-0003-2609-428X IFG Institute of Geodesy, Graz University of Technology, Graz, Austria Lemoine, Jean-Michel Jean-Michel Lemoine 0000-0002-2758-1269 CNES Centre National d’Etudes Spatiales, Toulouse, France Koch, Igor Igor Koch 0000-0001-6521-4999 Leibniz University Hannover, Hannover, Germany Flury, Jakob Jakob Flury 0000-0002-5369-6158 Leibniz University Hannover, Hannover, Germany Bourgogne, Stéphane Stéphane Bourgogne Stellar Space Studies, Toulouse, France GFZ Data Services 2020 COST-G IGFS Product Center Combined solutions Time variable gravity EARTH SCIENCE > SOLID EARTH > GRAVITY/GRAVITATIONAL FIELD > GRAVITATIONAL FIELD EARTH SCIENCE > SOLID EARTH > GRAVITY/GRAVITATIONAL FIELD > GRAVITY Meyer, Ulrich Ulrich Meyer 0000-0002-3379-9213 AIUB Astronomical Institute University of Bern, Bern, Switzerland Meyer, Ulrich Ulrich Meyer 0000-0002-3379-9213 AIUB Astronomical Institute University of Bern, Bern, Switzerland Jaeggi, Adrian Adrian Jaeggi 0000-0002-5624-3410 AIUB Astronomical Institute University of Bern, Bern, Switzerland Bourgogne, Stéphane Stéphane Bourgogne Stellar Space Studies, Toulouse, France Meyer, Ulrich AIUB Astronomical Institute University of Bern, Bern, Switzerland 2018-06-01/2020-07-31 2020-10-01 2018-06-01/2020-07-31 Dataset https://cost-g.org/download/COST_G_RL01.pdf 10.5880/GFZ.GRACE_06_GSM 10.25835/0062546 10.5880/ICGEM.2020.001 10.5067/GFL20-MC060 10.5067/GFL20-MJ060 10.1007/1345_2020_109 10.1007/s00190-018-1123-5 10.1007/s00190-019-01274-6 https://cost-g.org/ 10.3390/rs11182116 01 CC BY 4.0 Operationally combined monthly gravity fields of the GRACE-FO satellite mission in spherical harmonic representation (Level-2 product) generated by the Combination Service for Time-variable Gravity Fields (COST-G; Jäggi et al. (2020):http://dx.doi.org/10.1007/1345_2020_109), a product center for time-variable gravity fields of IAG's International Gravity Field Service (IGFS). COST-G_GRACE-FO_RL01_OP is a combination of AIUB-GRACE-FO_op, GFZ-RL06 (GFO), GRGS-RL05 (unconstrained solution), ITSG-Grace_op, LUH-GRACE-FO, CSR-RL06 (GFO) and JPL-RL06 (GFO). The original time-series were provided by the analysis centers (ACs) and partner analysis centers (PCs) of COST-G.

COST-G performs a harmonization and quality control of the individual input solutions of the COST-G ACs and PCs. The combination of COST-G_GRACE-FO_RL01_OP is then performed applying variance component estimation on the solution level (Jean et al., 2018): https://doi.org/10.1007/s00190-018-1123-5). The resulting COST-G combined gravity fields are validated assessing their signal and noise content in the spectral and spatial domain (Meyer et al., 2019: https://doi.org/10.1007/s00190-019-01274-6) and by the COST-G Product Evaluation Group (PEG).

-180 180 -90 90 European Commission http://doi.org/10.13039/501100000780 870353 G3P Global Gravity-based Groundwater Product