Special Issue: Modelling the Earth’s Magnetic Field: the 10th Generation IGRF
- Article
- Open access
- Published:
Candidate main-field models for the Definitive Geomagnetic Reference Field 1995.0 and 2000.0
Earth, Planets and Space volume 57, pages 1197–1202 (2005)
Abstract
Two geomagnetic main-field models for epochs 1995.0 and 2000.0 were proposed as candidate models for DGRF 1995 and DGRF 2000. A main-field model was derived for epoch 2000.0, using the high-quality data provided by the Ørsted satellite around this epoch. Since no high-quality satellite vector measurements of the magnetic field were acquired between 1980 and 1999, our approach was to extrapolate this 2000.0 accurate model back to 1995. To do this we produced a secular-variation model for the time-span 1995-2000, from ground measurements. The models obtained were incorporated into DGRF 1995 and DGRF 2000 as part of the 9th generation of the IGRF in 2003.
References
Chambodut, A., J. Schwarte, B. Langlais, H. Luhr, and M. Mandea, The selection of data in field modeling, Proceedings of the 4th OIST meeting, 2003.
Holme, R., Modeling of attitude error in vector magnetic data: application to Ørsted data, Earth Planets Space, 52, 1187–1197, 2000.
Langlais, B. and M. Mandea, An IGRF candidate main geomagnetic field model for epoch 2000 and a secular variation model for 2000–2005, Earth Planets Space, 52, 1137–1148, 2000.
Langlais, B., P. Ultré-Guérard, C. Vernin, M. Mandea, Y. Cohen, and G. Hulot, Ørsted: IPGP commissioning of the OVH magnetometer, technical report CNES, OERS_RP_0000_0031_IPG, 1999.
Langlais, B., M. Mandea, and P. Ultré-Guérard, High-resolution magnetic field modeling: application to MAGSAT and Ørsted data, Phys. Earth Planet. Int., 135, 77–91, 2003.
Wessel, P. and W. H. F. Smith, Free software helps map and display data, Eos Trans. AGU, 72, 441–448, 1991.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.
The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/.
About this article
Cite this article
Chambodut, A., Langlais, B. & Mandea, M. Candidate main-field models for the Definitive Geomagnetic Reference Field 1995.0 and 2000.0. Earth Planet Sp 57, 1197–1202 (2005). https://doi.org/10.1186/BF03351904
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1186/BF03351904