Location of the North Magnetic Pole in April 2007

International audience Observations have been made at five locations in the vicinity of the North Magnetic Pole (NMP)νll. These were used in four different analyses -- virtual geomagnetic pole, simple polynomial, spherical cap harmonic, best fitting grid -- to derive positions of the NMP. The averag...

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Published in:Earth, Planets and Space
Main Authors: Newitt, L. R., Chulliat, A., Orgeval, J. -J.
Other Authors: Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2009
Subjects:
Online Access:https://hal-insu.archives-ouvertes.fr/insu-03604901
https://hal-insu.archives-ouvertes.fr/insu-03604901/document
https://hal-insu.archives-ouvertes.fr/insu-03604901/file/BF03353178.pdf
https://doi.org/10.1186/BF03353178
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spelling ftunivparis:oai:HAL:insu-03604901v1 2023-06-11T04:11:49+02:00 Location of the North Magnetic Pole in April 2007 Newitt, L. R. Chulliat, A. Orgeval, J. -J. Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) 2009 https://hal-insu.archives-ouvertes.fr/insu-03604901 https://hal-insu.archives-ouvertes.fr/insu-03604901/document https://hal-insu.archives-ouvertes.fr/insu-03604901/file/BF03353178.pdf https://doi.org/10.1186/BF03353178 en eng HAL CCSD Springer/Terra Scientific Publishing Company info:eu-repo/semantics/altIdentifier/doi/10.1186/BF03353178 insu-03604901 https://hal-insu.archives-ouvertes.fr/insu-03604901 https://hal-insu.archives-ouvertes.fr/insu-03604901/document https://hal-insu.archives-ouvertes.fr/insu-03604901/file/BF03353178.pdf BIBCODE: 2009EP&S.61.703N doi:10.1186/BF03353178 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1343-8832 Earth Planets and Space https://hal-insu.archives-ouvertes.fr/insu-03604901 Earth Planets and Space, 2009, 61, pp.703-710. ⟨10.1186/BF03353178⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2009 ftunivparis https://doi.org/10.1186/BF03353178 2023-04-26T16:21:26Z International audience Observations have been made at five locations in the vicinity of the North Magnetic Pole (NMP)νll. These were used in four different analyses -- virtual geomagnetic pole, simple polynomial, spherical cap harmonic, best fitting grid -- to derive positions of the NMP. The average position at 2007.3 was 83.95°N, 120.72°W, with a positional uncertainty of 40 km. This position is only 27 km from the pole position given by the CHAOS magnetic model. The NMP continues to move in a northwesterly direction but its drift speed has stabilized at just over 50 km per year. The number of direct observations is insufficient to determine if the NMP has started to decelerate. Article in Journal/Newspaper Geomagnetic Pole North Magnetic Pole Université de Paris: Portail HAL Earth, Planets and Space 61 6 703 710
institution Open Polar
collection Université de Paris: Portail HAL
op_collection_id ftunivparis
language English
topic [SDU]Sciences of the Universe [physics]
spellingShingle [SDU]Sciences of the Universe [physics]
Newitt, L. R.
Chulliat, A.
Orgeval, J. -J.
Location of the North Magnetic Pole in April 2007
topic_facet [SDU]Sciences of the Universe [physics]
description International audience Observations have been made at five locations in the vicinity of the North Magnetic Pole (NMP)νll. These were used in four different analyses -- virtual geomagnetic pole, simple polynomial, spherical cap harmonic, best fitting grid -- to derive positions of the NMP. The average position at 2007.3 was 83.95°N, 120.72°W, with a positional uncertainty of 40 km. This position is only 27 km from the pole position given by the CHAOS magnetic model. The NMP continues to move in a northwesterly direction but its drift speed has stabilized at just over 50 km per year. The number of direct observations is insufficient to determine if the NMP has started to decelerate.
author2 Institut de Physique du Globe de Paris (IPGP)
Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)
format Article in Journal/Newspaper
author Newitt, L. R.
Chulliat, A.
Orgeval, J. -J.
author_facet Newitt, L. R.
Chulliat, A.
Orgeval, J. -J.
author_sort Newitt, L. R.
title Location of the North Magnetic Pole in April 2007
title_short Location of the North Magnetic Pole in April 2007
title_full Location of the North Magnetic Pole in April 2007
title_fullStr Location of the North Magnetic Pole in April 2007
title_full_unstemmed Location of the North Magnetic Pole in April 2007
title_sort location of the north magnetic pole in april 2007
publisher HAL CCSD
publishDate 2009
url https://hal-insu.archives-ouvertes.fr/insu-03604901
https://hal-insu.archives-ouvertes.fr/insu-03604901/document
https://hal-insu.archives-ouvertes.fr/insu-03604901/file/BF03353178.pdf
https://doi.org/10.1186/BF03353178
genre Geomagnetic Pole
North Magnetic Pole
genre_facet Geomagnetic Pole
North Magnetic Pole
op_source ISSN: 1343-8832
Earth Planets and Space
https://hal-insu.archives-ouvertes.fr/insu-03604901
Earth Planets and Space, 2009, 61, pp.703-710. ⟨10.1186/BF03353178⟩
op_relation info:eu-repo/semantics/altIdentifier/doi/10.1186/BF03353178
insu-03604901
https://hal-insu.archives-ouvertes.fr/insu-03604901
https://hal-insu.archives-ouvertes.fr/insu-03604901/document
https://hal-insu.archives-ouvertes.fr/insu-03604901/file/BF03353178.pdf
BIBCODE: 2009EP&S.61.703N
doi:10.1186/BF03353178
op_rights http://creativecommons.org/licenses/by/
info:eu-repo/semantics/OpenAccess
op_doi https://doi.org/10.1186/BF03353178
container_title Earth, Planets and Space
container_volume 61
container_issue 6
container_start_page 703
op_container_end_page 710
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