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.
The Prompt Penetration Equatorial Electric Field Model (PPEEFM) describes how the electric field in the equatorial ionosphere varies as a response to solar wind fluctuations.
The Equatorial Electric Field Model (EEFM) is a satellite-based model for the equatorial electric field at an altitude of 108 km, as a function of longitude, local time, season, solar flux, and lunar local time.
The NGDC-720 model provides a description of the crustal field from ellipsoidal harmonic degree 16 to 719, corresponding to the waveband of 2500 km to 56 km.
The Potsdam Magnetic Model of the Earth (POMME) is a research model that describes both the internal and the external (magnetospheric) fields, taking into account the variability of space weather.
The Earth Magnetic Anomaly Grid: 2 Arc-Minute Resolution (EMAG2), version 3, is a grid of crustal anomalies reported in two forms: a consistent 4km upward-continued grid and an anomaly at sea level above oceanic regions and 4km altitude above continental regions.
The World Magnetic Model 2020 (WMM2020) is a core field model with degree and order 12, based on satellite observations, and forecasting the geomagnetic field through December 31, 2024. The WMM is the standard model used for navigation, attitude, and heading referencing systems that rely on the geomagnetic field.
The International Geomagnetic Reference Field (IGRF), 13th generation, is a model that describes the core field from 1900 to 2025. It was developed by an international team of scientists, under the auspices of the International Association of Geomagnetism and Aeronomy (IAGA).