Current Models
| Model | Description | Source | Date |
|---|---|---|---|
|
WMM2025 and WMMHR2025
|
The World Magnetic Model 2025 (WMM2025) is a core field model with degree and order 12, based on satellite observations, and forecasting the geomagnetic field through December 31, 2029. The World Magnetic Model High Resolution 2025 (WMMHR2025) provides a higher spatial resolution than WMM2025, with degree and order up to 133, and includes coverage of the large-scale crustal magnetic field. The WMM is the standard model used for navigation, attitude, and heading referencing systems that rely on the geomagnetic field. | Core + Crust | |
|
HDGM2025 and HDGM2025-RT
|
The High Definition Geomagnetic Model 2025 (HDGM2025) is a global, high-resolution model (degree 790) of the Earth's geomagnetic main and crustal fields, providing magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface for the year 2025. An optional extension to the HDGM is the HDGM-RT, which provides near real-time estimates of the external disturbance field caused by the solar wind and includes a magnetic field model for daily variations due to ionospheric current systems. | Core + Crust + Magnetosphere + Ionosphere | |
|
IGRF-14
|
The International Geomagnetic Reference Field (IGRF), 14th generation, is a model that describes the core field from 1900 to 2030. It was developed by an international team of scientists, under the auspices of the International Association of Geomagnetism and Aeronomy (IAGA). | Core | |
|
DIFI-7
|
The Dedicated Ionospheric Field Inversion (DIFI) model is a Swarm-based, global model of the Sq and equatorial electrojet magnetic fields at mid- and low latitudes. It describes variations in local time, season, and solar flux, and separates primary and induced magnetic fields. | Ionosphere | |
|
EMM2017
|
The Enhanced Magnetic Model 2017 (EMM2017) is a degree and order 790 internal field model, resolving magnetic anomalies as short as 51 km wavelength. | Core + Crust | |
|
EMAG2-v3
|
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. | Crust | |
|
POMME-10
|
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. | Core + Crust + Magnetosphere | |
|
MF7
|
MF7 is a lithospheric field model from CHAMP satellite data extending to degree and order 133 (wavelengths of 300km). | Crust | |
|
NGDC-720
|
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. | Crust | |
|
EEFM1
|
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. | Ionosphere | |
|
PPEEFM
|
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. | Ionosphere | |
|
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. | Ionosphere | |
|
JVDM1
|
The JULIA (Jicamarca Unattended Long-term Investigations of the Ionosphere and Atmosphere) Vertical Drift Model (JVDM) models vertical plasma drifts at an altitude of 150 km, 20 degrees above and below the magnetic equator. | Ionosphere | |
|
gufm1
|
The gufm1 model describes the magnetic field at the core–mantle boundary for the interval 1590–1990. | Core |
Previous Models
| Model | Description | Source | Date |
|---|---|---|---|
|
HGDM2024 and HDGM2024-RT
|
The High Definition Geomagnetic Model 2024 (HDGM2024) is a global, high-resolution model (degree 790) of the Earth's geomagnetic main and crustal fields, providing magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface for the year 2024. An optional extension to the HDGM is the HDGM-RT, which provides near real-time estimates of the external disturbance field caused by the solar wind and includes a magnetic field model for daily variations due to ionospheric current systems. | Core + Crust + Magnetosphere + Ionosphere | |
|
HDGM2023 and HDGM2023-RT
|
The High Definition Geomagnetic Model 2023 (HDGM2023) is a global, high-resolution model (degree 790) of the Earth's geomagnetic main and crustal fields, providing magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface for the year 2023. An optional extension to the HDGM is the HDGM-RT, which provides near real-time estimates of the external disturbance field caused by the solar wind and includes a magnetic field model for daily variations due to ionospheric current systems. | Core + Crust + Magnetosphere + Ionosphere | |
|
HDGM2022 and HDGM2022-RT
|
The High Definition Geomagnetic Model 2022 (HDGM2022) is a global, high-resolution model (degree 790) of the Earth's geomagnetic main and crustal fields, providing magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface for the year 2022. An optional extension to the HDGM is the HDGM-RT, which provides near real-time estimates of the external disturbance field caused by the solar wind and includes a magnetic field model for daily variations due to ionospheric current systems. | Core + Crust + Magnetosphere + Ionosphere | |
|
DIFI-6
|
The Dedicated Ionospheric Field Inversion (DIFI) model is a Swarm-based, global model of the Sq and equatorial electrojet magnetic fields at mid- and low latitudes. It describes variations in local time, season, and solar flux, and separates primary and induced magnetic fields. | Ionosphere | |
|
HDGM2021 and HDGM2021-RT
|
The High Definition Geomagnetic Model 2021 (HDGM2021) is a global, high-resolution model (degree 790) of the Earth's geomagnetic main and crustal fields, providing magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface for the year 2021. An optional extension to the HDGM is the HDGM-RT, which provides near real-time estimates of the external disturbance field caused by the solar wind and includes a magnetic field model for daily variations due to ionospheric current systems. | Core + Crust + Magnetosphere + Ionosphere | |
|
DIFI-5
|
The Dedicated Ionospheric Field Inversion (DIFI) model is a Swarm-based, global model of the Sq and equatorial electrojet magnetic fields at mid- and low latitudes. It describes variations in local time, season, and solar flux, and separates primary and induced magnetic fields. | Ionosphere | |
|
IGRF-13
|
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). | Core | |
|
WMM2020
|
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. | Core | |
|
HDGM2020 and HDGM2020-RT
|
The High Definition Geomagnetic Model 2020 (HDGM2020) is a global, high-resolution model (degree 720) of the Earth's geomagnetic main and crustal fields, providing magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface for the year 2020. An optional extension to the HDGM is the HDGM-RT, which provides near real-time estimates of the external disturbance field caused by the solar wind and includes a magnetic field model for daily variations due to ionospheric current systems. | Core + Crust + Magnetosphere + Ionosphere | |
|
WMM2015v2
|
The World Magnetic Model 2015 (WMM2015), version 2, is a core field model with degree and order 12, based on satellite observations, and forecasting the geomagnetic field through December 31, 2019. The WMM is the standard model used for navigation, attitude, and heading referencing systems that rely on the geomagnetic field. | Core | |
|
HDGM2019 and HDGM2019-RT
|
The High Definition Geomagnetic Model 2019 (HDGM2019) is a global, high-resolution model (degree 720) of the Earth's geomagnetic main and crustal fields, providing magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface for the year 2019. An optional extension to the HDGM is the HDGM-RT, which provides near real-time estimates of the external disturbance field caused by the solar wind and includes a magnetic field model for daily variations due to ionospheric current systems. | Core + Crust + Magnetosphere + Ionosphere | |
|
DIFI-4
|
The Dedicated Ionospheric Field Inversion (DIFI) model is a Swarm-based, global model of the Sq and equatorial electrojet magnetic fields at mid- and low latitudes. It describes variations in local time, season, and solar flux, and separates primary and induced magnetic fields. | Ionosphere | |
|
HDGM2018 and HDGM2018-RT
|
The High Definition Geomagnetic Model 2018 (HDGM2018) is a global, high-resolution model (degree 720) of the Earth's geomagnetic main and crustal fields, providing magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface for the year 2018. An optional extension to the HDGM is the HDGM-RT, which provides near real-time estimates of the external disturbance field caused by the solar wind and includes a magnetic field model for daily variations due to ionospheric current systems. | Core + Crust + Magnetosphere + Ionosphere | |
|
DIFI-3
|
The Dedicated Ionospheric Field Inversion (DIFI) model is a Swarm-based, global model of the Sq and equatorial electrojet magnetic fields at mid- and low latitudes. It describes variations in local time, season, and solar flux, and separates primary and induced magnetic fields. | Ionosphere | |
|
HDGM2017 and HDGM2017-RT
|
The High Definition Geomagnetic Model 2017 (HDGM2017) is a global, high-resolution model (degree 720) of the Earth's geomagnetic main and crustal fields, providing magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface for the year 2017. An optional extension to the HDGM is the HDGM-RT, which provides near real-time estimates of the external disturbance field caused by the solar wind and includes a magnetic field model for daily variations due to ionospheric current systems. | Core + Crust + Magnetosphere + Ionosphere | |
|
DIFI-2
|
The Dedicated Ionospheric Field Inversion (DIFI) model is a Swarm-based, global model of the Sq and equatorial electrojet magnetic fields at mid- and low latitudes. It describes variations in local time, season, and solar flux, and separates primary and induced magnetic fields. | Ionosphere | |
|
POMME-9
|
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. | Core + Crust + Magnetosphere | |
|
IGRF-12
|
The International Geomagnetic Reference Field (IGRF), 12th generation, is a model that describes the core field from 1900 to 2020. It was developed by an international team of scientists, under the auspices of the International Association of Geomagnetism and Aeronomy (IAGA). | Core | |
|
WMM2015v1
|
The World Magnetic Model 2015 (WMM2015), version 1, is a core field model with degree and order 12, based on satellite observations, and forecasting the geomagnetic field through December 31, 2019. The WMM is the standard model used for navigation, attitude, and heading referencing systems that rely on the geomagnetic field. | Core | |
|
POMME-8
|
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. | Core + Crust + Magnetosphere | |
|
POMME-7
|
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. | Core + Crust + Magnetosphere | |
|
POMME-6
|
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. | Core + Crust + Magnetosphere | |
|
POMME-5
|
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. | Core + Crust + Magnetosphere | |
|
EMAG2
|
EMAG2 is a global 2-arc-minute resolution grid of the magnetic intensity anomaly at an altitude of 4 km above the geoid. Compared to EMAG3, additional grid and trackline data have been included. The longest wavelengths (larger than 330 km) were replaced with the lithospheric field model MF6. | Crust | |
|
MF6
|
MF6 is a lithospheric field model from CHAMP satellite data extending to degree and order 120. | Crust | |
|
POMME-4
|
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. | Core + Crust + Magnetosphere | |
|
EEJM1
|
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. | Ionosphere | |
|
EMAG3
|
EMAG3 is a global 3-arc-minute resolution grid of the magnetic intensity anomaly at an altitude of 5 km above mean sea level. It was compiled from satellite, marine, aeromagnetic, and ground magnetic surveys. EMAG3 was chosen as the base grid for the World Digital Magnetic Anomaly Map (WDMAM) project. | Crust | |
|
MF5
|
MF5 is a lithospheric field model from CHAMP satellite data extending to degree and order 100. | Crust | |
|
POMME-3
|
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. | Core + Crust + Magnetosphere | |
|
MF4X
|
MF4x is a lithospheric field model from CHAMP satellite data, estimated by a new algorithm from the same cleaned data set which was used for MF4. | Crust | |
|
POMME-2
|
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. | Core + Crust + Magnetosphere |