Results 11 to 20 of about 525 (164)

International Geomagnetic Reference Field: the thirteenth generation [PDF]

Earth, Planets and Space, 2021
In December 2019, the International Association of Geomagnetism and Aeronomy (IAGA) Division V Working Group (V-MOD) adopted the thirteenth generation of the International Geomagnetic Reference Field (IGRF). This IGRF updates the previous generation with
P. Alken, E. Thébault, C. D. Beggan, H. Amit, J. Aubert, J. Baerenzung, T. N. Bondar, W. J. Brown, S. Califf, A. Chambodut, A. Chulliat, G. A. Cox, C. C. Finlay, A. Fournier, N. Gillet, A. Grayver, M. D. Hammer, M. Holschneider, L. Huder, G. Hulot, T. Jager, C. Kloss, M. Korte, W. Kuang, A. Kuvshinov, B. Langlais, J.-M. Léger, V. Lesur, P. W. Livermore, F. J. Lowes, S. Macmillan, W. Magnes, M. Mandea, S. Marsal, J. Matzka, M. C. Metman, T. Minami, A. Morschhauser, J. E. Mound, M. Nair, S. Nakano, N. Olsen, F. J. Pavón-Carrasco, V. G. Petrov, G. Ropp, M. Rother, T. J. Sabaka, S. Sanchez, D. Saturnino, N. R. Schnepf, X. Shen, C. Stolle, A. Tangborn, L. Tøffner-Clausen, H. Toh, J. M. Torta, J. Varner, F. Vervelidou, P. Vigneron, I. Wardinski, J. Wicht, A. Woods, Y. Yang, Z. Zeren, B. Zhou   +64 more
doaj   +2 more sources

Using improved Swarm’s experimental absolute vector mode data to produce a candidate Definitive Geomagnetic Reference Field (DGRF) 2015.0 model

Earth, Planets and Space, 2021
We describe the way a global model of the geomagnetic field has been built using vector field data acquired by the absolute scalar magnetometers (ASM) running in vector mode on board the Alpha and Bravo satellites of the European Space Agency (ESA) Swarm
Pierre Vigneron, Gauthier Hulot, Jean-Michel Léger, Thomas Jager   +3 more
doaj   +2 more sources

A 2015 International Geomagnetic Reference Field (IGRF) candidate model based on Swarm’s experimental absolute magnetometer vector mode data [PDF]

Earth, Planets and Space, 2015
Abstract Each of the three satellites of the European Space Agency Swarm mission carries an absolute scalar magnetometer (ASM) that provides the nominal 1-Hz scalar data of the mission for both science and calibration purposes. These ASM instruments, however, also deliver autonomous 1-Hz experimental vector data.
Vigneron, Pierre, Hulot, Gauthier, Olsen, Nils, Léger, Jean-Michel, Jager, Thomas, Brocco, Laura, Sirol, Olivier, Coïsson, Pierdavide, Lalanne, Xavier, Chulliat, Arnaud, Bertrand, François, Boness, Axel, Fratter, Isabelle   +12 more
openaire   +5 more sources

Mapping of steady-state electric fields and convective drifts in geomagnetic fields – Part 2: The IGRF [PDF]

Annales Geophysicae, 2016
A method of mapping electric fields along geomagnetic field lines is applied to the IGRF (International Geomagnetic Reference Field) model. The method involves integrating additional sets of first order differential equations simultaneously with ...
A. D. M. Walker
doaj   +2 more sources

Testing Geomagnetic Reference Field models for 1990-2000 with data from the Trelew Geomagnetic Observatory, Argentina [PDF]

Geofísica Internacional, 2003
Every five years a new International Geomagnetic Reference Field (IGRF) model is released and the secular variation for the previous period is updated, producing the definitive DGRF model.
Marta E. Ghidella, Jacqueline Köhn, Julio C. Gianibelli   +2 more
doaj   +1 more source

Physics-based secular variation candidate models for the IGRF

Earth, Planets and Space, 2021
Each International Geomagnetic Reference Field (IGRF) model released under the auspices of the International Association of Geomagnetism and Aeronomy comprises a secular variation component that describes the evolution of the main magnetic field ...
Alexandre Fournier, Julien Aubert, Vincent Lesur, Erwan Thébault   +3 more
doaj   +2 more sources

Development of a Systematic Model for Study on the Phenomena of Ionospheric and Geomagnetic Variations [PDF]

Journal of Astronomy and Space Sciences, 1999
Solar activities ejecting high energy particles influence satellites and satellite communications as well as perturb geomagnetic fields. To understand space environments near the Earth being influenced by the Sun, we must study about the magnetosphere ...
Yoo Surn Pyo, Hwang-Jae Rhee, Min-Geun Kim, Eunhwa Kim, Sung-Hee Song, Jinny Lee, Dong-Hun Lee   +6 more
doaj   +1 more source

Evidence-based uncertainty estimates for the International Geomagnetic Reference Field [PDF]

Earth, Planets and Space, 2022
The International Geomagnetic Reference Field (IGRF) is a multi-institute model of the Earth’s magnetic field, compactly described by sets of up to 195 spherical harmonic (Gauss) coefficients to degree and order 13, which allows the continuous evaluation
Ciarán D. Beggan
doaj   +2 more sources

The BGS candidate models for IGRF-13 with a retrospective analysis of IGRF-12 secular variation forecasts [PDF]

Earth, Planets and Space, 2021
The three candidate models submitted by the British Geological Survey for the 13th generation International Geomagnetic Reference Field are described.
William J. Brown, Ciarán D. Beggan, Grace A. Cox, Susan Macmillan   +3 more
doaj   +2 more sources

Evaluation of candidate models for the 13th generation International Geomagnetic Reference Field [PDF]

Earth, Planets and Space, 2021
In December 2019, the 13th revision of the International Geomagnetic Reference Field (IGRF) was released by the International Association of Geomagnetism and Aeronomy (IAGA) Division V Working Group V-MOD.
P. Alken, E. Thébault, C. D. Beggan, J. Aubert, J. Baerenzung, W. J. Brown, S. Califf, A. Chulliat, G. A. Cox, C. C. Finlay, A. Fournier, N. Gillet, M. D. Hammer, M. Holschneider, G. Hulot, M. Korte, V. Lesur, P. W. Livermore, F. J. Lowes, S. Macmillan, M. Nair, N. Olsen, G. Ropp, M. Rother, N. R. Schnepf, C. Stolle, H. Toh, F. Vervelidou, P. Vigneron, I. Wardinski   +29 more
doaj   +2 more sources