Combination Service for Time-variable Gravity Fields: operational GRACE-FO combination and validation of Chinese GRACE time-series

BORIS DOI
Description
The Combination Service for Time-variable Gravity Fields (COST-G) of the International Association of Geodesy (IAG) provides combined monthly gravity fields of its associated and partner Analysis Centers (ACs). In November 2020, the combination of monthly GRACE-FO gravity fields started its operational mode, providing consolidated L2 (spherical harmonics) and L3 (gridded and post-processed) products with a latency of currently 3 months. We present an overview and quality assessment of the available products. COST-G aims at the extension of its service to include further GRACE and GRACE-FO analysis centers. In January 2020 a collaboration with representatives of five Chinese ACs was initiated, who provided GRACE time-series according to the COST-G requirements. We present the results of a test combination with the Chinese AC models, including comparison and quality assessment of all contributing time-series and validation of the combined gravity fields.
Date of Publication
2021-04
Publication Type
Conference Item
Subject(s)
Language(s)
en
Contributor(s)
Flechtner, F.
Dahle, C.
Boergens, E.
Förste, C.
Mayer-Gürr, T.
Kvas, A.
Behzadpour, S.
Lemoine, J. M.
Bourgogne, S.
Koch, I.
Flury, J.
Groh, A.
Eicker, A.
Meyssignac, B.
Zhou, H.
Yan, Z.
Chen, Q.
Guo, X.
Wang, C.
Feng, W.
Additional Credits
Title of Event
Access(Rights)
open.access
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