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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ftccsdartic:oai:HAL:insu-03604901v1 2023-08-20T04:06:38+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://insu.hal.science/insu-03604901 https://insu.hal.science/insu-03604901/document https://insu.hal.science/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://insu.hal.science/insu-03604901 https://insu.hal.science/insu-03604901/document https://insu.hal.science/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 EISSN: 1880-5981 Earth Planets and Space https://insu.hal.science/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 ftccsdartic https://doi.org/10.1186/BF03353178 2023-07-29T22:54:37Z 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 Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Earth, Planets and Space 61 6 703 710 |
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Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
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://insu.hal.science/insu-03604901 https://insu.hal.science/insu-03604901/document https://insu.hal.science/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 EISSN: 1880-5981 Earth Planets and Space https://insu.hal.science/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://insu.hal.science/insu-03604901 https://insu.hal.science/insu-03604901/document https://insu.hal.science/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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1774717873974935552 |