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

Research areas:

Intérieurs planétaires (2011 - 2016)

Year:

2010

Authors:

Aude Chambodut
Benoit Langlais
Michel Menvielle
Erwan Thébault
Arnaud Chulliat
Gauthier Hulot

Journal:

Earth Planets Space

Volume:

Pages:

745-751

BibTex:

@article{cham2010eps,
author = "Aude Chambodut and Benoit Langlais and Michel Menvielle and Erwan Th{\'e}bault and Arnaud Chulliat and Gauthier Hulot",
abstract = "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 {\O}rsted
                  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.",
doi = "10.5047/eps.2010.06.006",
extra = "PICL",
journal = "Earth Planets Space",
pages = "745-751",
title = "{C}andidate models for the {IGRF}-11th generation making                  use of extrapolated observatory data",
volume = "62",
year = "2010",
}

Abstract:

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.

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

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