The World Magnetic Model (WMM) is the standard model for navigation, attitude, and heading referencing systems that use the geomagnetic field. The WMM is also used for civilian applications, including navigation and heading systems.

Dec 17, 2024 · The WMM is key to global navigation, ensuring that technological systems relying on the Earth’s magnetic field operate correctly. The World Magnetic Model 2025 (WMM2025) provides more precise navigational data for all military and civilian planes, ships, submarines, and …

NGDC hosts online calculators to compute the geomagnetic field at any location on the Earth. The geomagnetic models behind these calculators are regularly updated to maintain their accuracy.

The High Definition Geomagnetic Model (HDGM) is a global, high-resolution model of Earth's geomagnetic main and crustal field. The model provides magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface.

The International Association of Geomagnetism and Aeronomy (IAGA) has released the 13 th Generation International Geomagnetic Reference Field — the latest version of a standard mathematical description of the Earth's main magnetic field that is used widely in studies of the Earth's deep interior, its crust and its ionosphere and magnetosphere ...

1 day ago · The International Geomagnetic Reference Field (IGRF) model is the empirical representation of the Earth's magnetic field recommended for scientific use by a special Working Group of the International Association of Geomagnetism and Aeronomy (IAGA).

There are many models which aim to describe the global geomagnetic field (or one of the sources within it). The field itself is complex so naturally there are many decisions to be made when creating a model: what magnetic source (s) are we interested in? what data should we use and how should we “clean” them? how should we parameterise the model? …

The CHAOS-8 - A model of the time-dependent near-Earth geomagnetic field between 1999 and 2025. CHAOS-8 is based on magnetic field observations collected by the low-Earth orbit satellites Swarm, MSS-1, CSES, CryoSat-2, CHAMP, SAC-C and Ørsted, and on annual differences of monthly means of ground observatory measurements.

Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from Earth's interior out into space, where it interacts with the solar wind, a stream of charged particles emanating from the Sun.

The High Definition Geomagnetic Model (HDGM) is a global, high resolution model (degree 720) of the Earth's geomagnetic main and crustal field, providing magnetic field values (total field, dip, and declination) at any point above or below the Earth's surface.