EQUATORIAL ELECTROJET MODEL EEJM2
The Equatorial Electrojet Model (EEJM) is a satellite derived model of the EEJ magnetic signature as a function of longitude, local-time, season, solar flux, and lunar local-time.
Earth Magnetic Anomaly Grid: 2 arc-minute resolution (EMAG2) is a grid of crustal anomalies reported in two ways, a consistent 4km upward continued grid, and an anomaly altitude at sea level above oceanic regions and 4km above continental regions.
The Enhanced Magnetic Model (EMM) is a degree and order 720 internal field model, resolving magnetic anomalies down to 56 km wavelength.
The current World Magnetic Model (WMM2020) is a degree and order 12 core field model based on satellite observations and forecasting the field until Dec 31, 2024.