Peer-reviewedCC BYEarth Planets and Space
International geomagnetic reference field: the fourteenth generation
29 affiliations
- 1British Geological Survey, Lyell Centre, Research Avenue South, Edinburgh, EH14 4AP, UK
- 2Division of Geomagnetism and Geospace, DTU Space, Technical University of Denmark, Centrifugevej 356, 2800, Kongens Lyngby, Denmark
- 3CNRS, Univ. Grenoble Alpes, Grenoble INP, GIPSA-Lab, Grenoble, Grenoble, France
- 4University of Science and Technology Houari Boumediene, Bab-Ezzouar, Algeria
- 5Nantes Université, Univ Angers, Le Mans Université, CNRS, Laboratoire de Planétologie et Géosciences, LPG UMR 6112, Nantes, France
- 6Université Paris Cité, Institut de physique du globe de Paris, CNRS, Paris, France
- 7Technical University of Berlin, Berlin, Germany
- 8Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, Colorado, USA
- 9NOAA National Centers for Environmental Information, Boulder, USA
- 10Instituto de Geociencias IGEO, Madrid, Spain
- 11Universidad Complutense de Madrid, Madrid, Spain
- 12Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, Univ. Gustave Eiffel, ISTerre, Grenoble, France
- 13GFZ Helmholtz Centre for Geosciences, Potsdam, Germany
- 14School of Earth and Environment, University of Leeds, Leeds, UK
- 15Geophysical Center of the Russian Academy of Sciences (GC RAS), Moscow, Russia
- 16Laboratoire Magmas et Volcans, CNRS, IRD, OPGC, Université Clermont Auvergne, Clermont-Ferrand, France
- 17University of Cologne, Cologne, Germany
- 18NASA Goddard Space Flight Center, Greenbelt, MD, USA
- 19School of Environmental Sciences, University of Liverpool, Liverpool, UK
- 20University of Potsdam, Potsdam, Germany
- 21CEA-Leti, Université Grenoble Alpes, MINATEC, Grenoble, France
- 22Macau Institute of Space Technology and Application, Macau University of Science and Technology, Macau SAR, Macau, China
- 23School of GeoSciences, University of Edinburgh, Edinburgh, UK
- 24Centre National d’Etudes Spatiales, Paris, France
- 25Institute of Science Tokyo, Tokyo, Japan
- 26Kobe University, Kobe, Japan
- 27Institute of Statistical Mathematics, Tachikawa, Japan
- 28SHOM, Brest, France
- 29Wuhan University, Wuhan, China
Abstract
In November 2024, the International Association of Geomagnetism and Aeronomy (IAGA) Division V Working Group (V-MOD) adopted the fourteenth generation of the International Geomagnetic Reference Field (IGRF). This IGRF updates the previous generation with a definitive main field model for epoch 2020.0, a main field model for epoch 2025.0, and a predictive linear secular variation for 2025.0 to 2030.0. We describe the equations defining the IGRF, the spherical harmonic coefficients for this fourteenth generation model, maps of magnetic declination, inclination, and total field intensity for the model at 2025.0 and maps of the predicted rate of change of the field for the 2025.0 to 2030.0 time period.
Related
- RAStoERK: A reference interaction atlas for insights into signaling and disease
- The complete mitochondrial genome of Apocynum venetum: a high-quality reference assembly for comparative genomics in Apocynaceae
- Screening and validation of suitable internal reference genes for gene expression analysis in Rubia cordifolia L. under different abiotic stresses
- Development of Bovine-Derived β-Actin Genomic DNA Reference Materials for Meat Adulteration
- The Emirati pangenome featuring a diploid chromosome-level reference
BibTeX
@article{beggan2026international,
title = {{International geomagnetic reference field: the fourteenth generation}},
author = {Ciarán Beggan and Clemens Kloss and Pierre‐Olivier Amblard and T. Amezza and Hagay Amit and Julien Aubert and Julien Baerenzung and Jonas Bregnhøj Lauridsen and W. Brown and Samuel T Califf and Saioa A. Campuzano and Louis Chauvet and Arnaud Chulliat and Régis Claveau and Pierdavide Coïsson and M. da Silva and C Davies and Robin Deborde and M. Dobrovolsky and Martin Fillion and Christopher C. Finlay and Ilya Firsov and Alexandre Fournier and Lydie Gailler and Nicolas Gillet and N. Gómez Pérez and Alexander V. Grayver and Kyle Gwirtz and M. Hamoudi and R. Holme and M. Holschneider and Gauthier Hulot and T. Jager and Y. Jiang and M. Kada and M. Korte and R. Krasnoperov and W. Kuang and Dmitry V. Kudin and J.M. Leger and A. Lemgharb and Vincent Lesur and P. Liu and Philip W. Livermore and Frederik Dahl Madsen and Mioara Mandéa and M. Matsushima and Jürgen Matzka and Ingo Michaelis and T. Minami and M. Nair and S. Nakano and J-F. Oehler and Nils Olsen and Fco. Javier Pavón–Carrasco and Sergey Presnyakov and B. Qian and X. Rang and H. F. Rogers and Martin Röther},
journal = {Earth Planets and Space},
year = {2026},
month = jun,
doi = {10.1186/s40623-025-02360-0},
url = {https://doi.org/10.1186/s40623-025-02360-0},
note = {CC BY},
}
RIS
TY - JOUR
TI - International geomagnetic reference field: the fourteenth generation
AU - Ciarán Beggan
AU - Clemens Kloss
AU - Pierre‐Olivier Amblard
AU - T. Amezza
AU - Hagay Amit
AU - Julien Aubert
AU - Julien Baerenzung
AU - Jonas Bregnhøj Lauridsen
AU - W. Brown
AU - Samuel T Califf
AU - Saioa A. Campuzano
AU - Louis Chauvet
AU - Arnaud Chulliat
AU - Régis Claveau
AU - Pierdavide Coïsson
AU - M. da Silva
AU - C Davies
AU - Robin Deborde
AU - M. Dobrovolsky
AU - Martin Fillion
AU - Christopher C. Finlay
AU - Ilya Firsov
AU - Alexandre Fournier
AU - Lydie Gailler
AU - Nicolas Gillet
AU - N. Gómez Pérez
AU - Alexander V. Grayver
AU - Kyle Gwirtz
AU - M. Hamoudi
AU - R. Holme
AU - M. Holschneider
AU - Gauthier Hulot
AU - T. Jager
AU - Y. Jiang
AU - M. Kada
AU - M. Korte
AU - R. Krasnoperov
AU - W. Kuang
AU - Dmitry V. Kudin
AU - J.M. Leger
AU - A. Lemgharb
AU - Vincent Lesur
AU - P. Liu
AU - Philip W. Livermore
AU - Frederik Dahl Madsen
AU - Mioara Mandéa
AU - M. Matsushima
AU - Jürgen Matzka
AU - Ingo Michaelis
AU - T. Minami
AU - M. Nair
AU - S. Nakano
AU - J-F. Oehler
AU - Nils Olsen
AU - Fco. Javier Pavón–Carrasco
AU - Sergey Presnyakov
AU - B. Qian
AU - X. Rang
AU - H. F. Rogers
AU - Martin Röther
PY - 2026
DA - 2026/06/29
JO - Earth Planets and Space
DO - 10.1186/s40623-025-02360-0
UR - https://doi.org/10.1186/s40623-025-02360-0
AB - In November 2024, the International Association of Geomagnetism and Aeronomy (IAGA) Division V Working Group (V-MOD) adopted the fourteenth generation of the International Geomagnetic Reference Field (IGRF). This IGRF updates the previous generation with a definitive main field model for epoch 2020.0, a main field model for epoch 2025.0, and a predictive linear secular variation for 2025.0 to 2030.0. We describe the equations defining the IGRF, the spherical harmonic coefficients for this fourteenth generation model, maps of magnetic declination, inclination, and total field intensity for the model at 2025.0 and maps of the predicted rate of change of the field for the 2025.0 to 2030.0 time period.
SN - 1343-8832
SN - 1880-5981
ER -