Results 11 to 20 of about 1,592 (183)
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 +3 more
doaj +2 more sources
Determination of the IGRF 2000 model [PDF]
Earth, Planets and Space, 2014 The IGRF 2000 has been estimated from magnetic measurements taken by the Orsted sattelite in summer 1999. For this purpose, three models have been derived: The first two models were estimated using a few geomagnetic quiet days in May and September 1999, respectively.
Olsen, Nils +2 more
openaire +3 more sources
Journal of Big Data, 2023 The effectiveness of machine learning models can be significantly averse to redundant and irrelevant features present in the large dataset which can cause drastic performance degradation.
Yuhua Yin +6 more
doaj +3 more sources
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 +3 more
doaj +2 more sources
Evaluación preliminar del campo geomagnético de referencia internacional IGRF-1990 para México y anomalías magnéticas corticales [PDF]
Geofísica Internacional, 1994 Se reporta una comparación regional entre el International Geomagnetic Reference Field (IGRF) para 1990 y medidas geomagneticas de campo obtenidas en 51 localidades del pais.
E. Hernández-Quintero +6 more
doaj +2 more sources
Earth, Planets and Space, 2021 Using magnetic field data from the China Seismo-Electromagnetic Satellite (CSES) mission, we derive a global geomagnetic field model, which we call the CSES Global Geomagnetic Field Model (CGGM).
Yanyan Yang +23 more
doaj +2 more sources
Evaluation of candidate geomagnetic field models for IGRF-11 [PDF]
Earth, Planets and Space, 2010 The eleventh generation of the International Geomagnetic Reference Field (IGRF) was agreed in December 2009 by a task force appointed by the International Association of Geomagnetism and Aeronomy (IAGA) Division V Working Group V-MOD. New spherical harmonic main field models for epochs 2005.0 (DGRF-2005) and 2010.0 (IGRF-2010), and predictive linear ...
Finlay, C. C. +6 more
openaire +6 more sources
The Spanish contribution to IGRF-14
Earth, Planets and SpaceThis study presents the methodology and results of the Spanish team contribution to the 14th generation of the International Geomagnetic Reference Field (IGRF-14), headed by Universidad Complutense de Madrid (UCM).
Mario Serrano +6 more
doaj +2 more sources
Candidate geomagnetic field models for IGRF-14 and secular acceleration since 2020
Earth, Planets and SpaceIGRF-14 is the fourteenth generation of the International Geomagnetic Reference Field (IGRF), a spherical harmonic model of Earth’s main magnetic field and its secular variation, developed through international collaboration under the auspices of the ...
Arnaud Chulliat, Manoj Nair
exaly +2 more sources
Bootstrapping Swarm and observatory data to generate candidates for the DGRF and IGRF-13 [PDF]
Earth, Planets and Space, 2020 As posted by the Working Group V of the International Association of Geomagnetism and Aeronomy (IAGA), the 13th generation of the International Geomagnetic Reference Field (IGRF) has been released at the end of 2019.
F. Javier Pavón-Carrasco +5 more
doaj +2 more sources