So far, the operational combination of the monthly GRACE, or GRACE-FO gravity field solutions by the Combination Service of Time-variable Gravity fields (COST-G) has been performed on the solution level. The originally foreseen combination on the normal equation (NEQ) level suffered from the very diverse and not realis...
Ulrich Meyer, M. Lasser, C. Dahle et al.· GRACE/GRACE-FO Science Team...· 0 citations
GFZ aims to distribute a reprocessed and improved RL07 Level-2 gravity field time series in the last quarter of 2026. Most of these improvements have been developed within the Research Unit “New Refined Observations of Climate Change from Spaceborne Gravity Missions” (NEROGRAV) funded by the German Research Foundation...
M. Hauk, C. Dahle, M. Murböck et al.· GRACE/GRACE-FO Science Team...· 0 citations
Within the framework of the Research Unit NEROGRAV (New Refined Observations of Climate Change from Spaceborne Gravity Missions), we focus on the computation of daily gravity field solutions using a Kalman filter approach. We use the RL07p GRACE/GRACE-FO daily normal equations, which incorporate refined stochastic mode...
Natalia Panafidina, M. Murböck, C. Dahle et al.· GRACE/GRACE-FO Science Team...· 0 citations
Inter-satellite ranging by space gravimetry missions, such as from the Gravity Recovery And Climate Experiment (GRACE) mission and its successor mission GRACE Follow-On, has been established to observe mass variations in the Earth system from space globally. A complex processing chain is needed to invert the instrument...
A. Jäggi, A. Güntner, Ulrich Meyer et al.· Surveys in geophysics· 0 citations
The central hypothesis of the Research Unit (RU) New Refined Observations of Climate Change from Spaceborne Gravity Missions (NEROGRAV) reads: only by concurrently improving and better understanding of sensor data, background models, and processing strategies of satellite gravimetry, the resolution, accuracy, and long-...
M. Murböck, C. Dahle, Natalia Panafidina et al.· GRACE/GRACE-FO Science Team...· 0 citations
This presentation will give an overview of GFZ's activities within the GRACE-FO Science Data System (SDS) including the current status of Level-2 and Level-3 products. It will also provide a high-level summary of the ongoing RL07 reprocessing campaign. First GFZ RL07 Level-2 products are expected to be published shortl...
C. Dahle, M. Hauk, M. Murböck et al.· GRACE/GRACE-FO Science Team...· 0 citations
Since 2018, the GRACE Follow-On satellite mission, a partnership between NASA (US) and GFZ (Germany), is continuing the unique essential climate data record of mass change in the Earth system initiated in 2002 by the GRACE mission (2002-2017). The combined GRACE & GRACE-FO data records now span over 22 years and provid...
F. Landerer, A. Eicker, H. Save et al.· GRACE/GRACE-FO Science Team...· 0 citations
Over nearly 25 years, GRACE and GRACE-FO have matured from a novel observing system into an operational-grade data source, with terrestrial water storage anomaly (TWSA) and, derived from this, groundwater storage change (GWSC) products now feeding directly into drought, flood, and water-availability assessments. Despit...
J. Haas, E. Boergens, C. Dahle et al.· GRACE/GRACE-FO Science Team...· 0 citations
Mascon solutions estimate mass changes directly on predefined surface elements, rather than only representing them by spherical harmonic coefficients. They are useful for regional water storage, ice-mass, and ocean applications, and are already provided by several groups such as GSFC, JPL and CSR. In the framework of G...
J. Wilms, C. Dahle, M. Hauk et al.· GRACE/GRACE-FO Science Team...· 0 citations
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