Candidate models for the IGRF-11th generation making use of extrapolated observatory data - Archive ouverte HAL
Article Dans Une Revue Earth Planets and Space Année : 2010

Candidate models for the IGRF-11th generation making use of extrapolated observatory data

Résumé

Three candidate models are produced in response to the call for IGRF-11 models. A main field model around epoch 2005.0 is based on one year of ørsted and CHAMP measurements, and is proposed for the definitive model for epoch 2005.0. A main field model around epoch 2009.5, based on two months of CHAMP measurements and extrapolated to 2010.0, is proposed as a main field model for epoch 2010.0. A secular variation model valid for 2010.0-2015.0, based on the extrapolation through exponential smoothing of observatory monthly mean values, is proposed as a predictive secular variation model. Comparison of similar extrapolations made for previous IGRF generations with actual observations are presented and discussed.
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Dates et versions

hal-00558301 , version 1 (16-07-2020)

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Aude Chambodut, Benoît Langlais, Michel Menvielle, Erwan Thébault, Arnaud Chulliat, et al.. Candidate models for the IGRF-11th generation making use of extrapolated observatory data. Earth Planets and Space, 2010, 62 (10), pp.745-751. ⟨10.5047/eps.2010.06.006⟩. ⟨hal-00558301⟩
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