Geomagnetic field modelling and USTHB IGRF-14 candidates
The present paper describes the construction of a global spherical harmonic model of the geomagnetic field, developed as the USTHB (University of Science and Technology Houari Boumediene) candidate for the 14th generation of International Geomagnetic Reference Field (IGRF). The model is based on scalar and vector data collected by the three satellites of the ESA Swarm mission. From 2 years of Swarm A observations, we derived the IGRF for the epoch 2025, its predictive secular variation (SV) for the 5-year period 2025.0–2030.0, as well as the Definitive Geomagnetic Reference Field (DGRF) for the epoch 2020.0. A brief description of the data sets, selection criteria, and the modelling methodology used to construct our candidate model is provided.
Authors
- Lemgharbi Abdenaceur (ORCID: https://orcid.org/0000-0002-0558-0679)
- V. Lesur
- M. Hamoudi
- M. Mandea
- T. Amezza
- A. Abtout
Institutions
- Centre National de la Recherche Scientifique (FR)
- Institut de physique du globe de Paris (FR)
- University of Sciences and Technology Houari Boumediene (DZ)
- Université Paris Cité (FR)
- Centre National d'Études Spatiales (FR)
- Sorbonne Université (FR)
- Laboratoire de Physique Nucléaire et de Hautes Énergies (FR)
- Centre de Recherche en Astronomie Astrophysique et Géophysique (DZ)
Publication Details
- Journal
- Earth Planets and Space
- Published
- 2026-07-17
- DOI
- https://doi.org/10.1186/s40623-026-02479-8
- Primary Topic
- Geomagnetism and Paleomagnetism Studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00