Global Earth Gravity Field Value Stream
F1 · Satellite Gravimetry Mission Operations
EGV Level: Basis → Level 1
Satellite gravimetry missions
Capabilities (avg maturity)
Equipment Calibration and Maintenance3.3
Gravity Data Acquisition and Storage3.3
Ground-Based Asset Management2.5
Weakest: Ground-Based Asset Management (2.5)
F2 · Terrestrial, Airborne & Marine Acquisition
EGV Level: Basis → Level 1
Terrestrial, airborne & shipborne surveys
Capabilities (avg maturity)
Equipment Calibration and Maintenance3.3
Gravity Data Acquisition and Storage3.3
Ground-Based Asset Management2.5
Weakest: Ground-Based Asset Management (2.5)
F3 · Dual-Stream Archiving & Collation
EGV Level: Level 1
Satellite mission archives
Surface gravity archives
Capabilities (avg maturity)
Data Preservation2.0
Data Quality Management2.0
Data Sharing3.0
Metadata Management2.0
Weakest: Data Preservation (2.0)
F4 · Satellite Gravity Processing (Level-2)
EGV Level: Level 1 → 2 (satellite stream)
CSR · JPL · GFZ
Monthly Level-2 solutions
Capabilities (avg maturity)
Geodetic Software and Tools2.0
Gravity Data Processing and Analysis2.8
Training and Education1.7
Weakest: Training and Education (1.7)
F5 · Time-Variable Gravity Combination (COST-G)
EGV Level: Level 2 → 3 (time-variable component)
COST-G (AIUB, Bern)
F6 · Surface Gravity Anomaly Harmonization
EGV Level: Level 1 → 2 (surface stream)
Surface data processing
Standardised gravity anomalies
Capabilities (avg maturity)
Geodetic Software and Tools2.0
Gravity Data Processing and Analysis2.8
Training and Education1.7
Weakest: Training and Education (1.7)
F7 · Ultra-High-Degree Global Combination
EGV Level: Level 3 (Global Earth Gravity Field)
Ultra-high-degree combination
Global gravity field models
Capabilities (avg maturity)
Geodetic Data Products (EOP Clocks Orbits Station Positions Gravity Models))2.8
Knowledge Management1.3
Research and Development Planning1.5
Research and Development Prototyping3.0
Weakest: Knowledge Management (1.3)
F8 · Geoid Model Evaluation & Benchmark Validation
EGV Level: Level 3 (pre-dissemination)
Independent evaluation
Internal validation
F9 · Model Archiving & Dissemination
EGV Level: Level 3 (validated models)
ICGEM (GFZ Potsdam)
Users
Capabilities (avg maturity)
Data Distribution2.0
Data Sharing3.0
Geodetic Services2.0
Weakest: Data Distribution (2.0)
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