Swarm and ESR observations of the ionospheric response to a field‐aligned current system in the high‐latitude midnight sector
International audience We present a conjunction between the Swarm fleet and the European Incoherent Scatter Svalbard Radar (ESR) on 9 January 2014. The Swarm orbit in the early phase of the mission gives us the unique opportunity of sequencing the temporal evolution of the observed field-aligned cur...
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Online Access: | https://hal.science/hal-03166294 https://hal.science/hal-03166294/document https://hal.science/hal-03166294/file/Pitout-et-al_2015_grl53038.pdf https://doi.org/10.1002/2015gl064231 |
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ftunivnantes:oai:HAL:hal-03166294v1 2023-05-15T18:29:48+02:00 Swarm and ESR observations of the ionospheric response to a field‐aligned current system in the high‐latitude midnight sector Pitout, F Marchaudon, Aurélie Blelly, P.-L, Bai, X Forme, F Buchert, S, Lorentzen, D Institut de recherche en astrophysique et planétologie (IRAP) Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS) 2015-06-10 https://hal.science/hal-03166294 https://hal.science/hal-03166294/document https://hal.science/hal-03166294/file/Pitout-et-al_2015_grl53038.pdf https://doi.org/10.1002/2015gl064231 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1002/2015gl064231 hal-03166294 https://hal.science/hal-03166294 https://hal.science/hal-03166294/document https://hal.science/hal-03166294/file/Pitout-et-al_2015_grl53038.pdf doi:10.1002/2015gl064231 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03166294 Geophysical Research Letters, 2015, 42, pp.4270 - 4279. ⟨10.1002/2015gl064231⟩ [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR] [PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph] info:eu-repo/semantics/article Journal articles 2015 ftunivnantes https://doi.org/10.1002/2015gl064231 2023-02-22T03:47:32Z International audience We present a conjunction between the Swarm fleet and the European Incoherent Scatter Svalbard Radar (ESR) on 9 January 2014. The Swarm orbit in the early phase of the mission gives us the unique opportunity of sequencing the temporal evolution of the observed field-aligned current system in the nightside, near magnetic local midnight. These field-aligned currents are seen to move poleward through the radar field of view and to affect the observed ionosphere. The upward field-aligned current (FAC) is responsible, at least in part, for the heating of the ionospheric electrons. It is less clear whether the downward FAC cools the ionosphere. We use the TRANSCAR model of the ionosphere to quantify the thermoelectric effect that comes into play. Finally, we compare the plasma parameters measured by the Langmuir probe on board Swarm and the ESR and conclude on an agreement within the errors. Article in Journal/Newspaper Svalbard Université de Nantes: HAL-UNIV-NANTES Svalbard Langmuir ENVELOPE(-67.150,-67.150,-66.967,-66.967) Geophysical Research Letters 42 11 4270 4279 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR] [PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph] |
spellingShingle |
[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR] [PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph] Pitout, F Marchaudon, Aurélie Blelly, P.-L, Bai, X Forme, F Buchert, S, Lorentzen, D Swarm and ESR observations of the ionospheric response to a field‐aligned current system in the high‐latitude midnight sector |
topic_facet |
[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR] [PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph] |
description |
International audience We present a conjunction between the Swarm fleet and the European Incoherent Scatter Svalbard Radar (ESR) on 9 January 2014. The Swarm orbit in the early phase of the mission gives us the unique opportunity of sequencing the temporal evolution of the observed field-aligned current system in the nightside, near magnetic local midnight. These field-aligned currents are seen to move poleward through the radar field of view and to affect the observed ionosphere. The upward field-aligned current (FAC) is responsible, at least in part, for the heating of the ionospheric electrons. It is less clear whether the downward FAC cools the ionosphere. We use the TRANSCAR model of the ionosphere to quantify the thermoelectric effect that comes into play. Finally, we compare the plasma parameters measured by the Langmuir probe on board Swarm and the ESR and conclude on an agreement within the errors. |
author2 |
Institut de recherche en astrophysique et planétologie (IRAP) Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Pitout, F Marchaudon, Aurélie Blelly, P.-L, Bai, X Forme, F Buchert, S, Lorentzen, D |
author_facet |
Pitout, F Marchaudon, Aurélie Blelly, P.-L, Bai, X Forme, F Buchert, S, Lorentzen, D |
author_sort |
Pitout, F |
title |
Swarm and ESR observations of the ionospheric response to a field‐aligned current system in the high‐latitude midnight sector |
title_short |
Swarm and ESR observations of the ionospheric response to a field‐aligned current system in the high‐latitude midnight sector |
title_full |
Swarm and ESR observations of the ionospheric response to a field‐aligned current system in the high‐latitude midnight sector |
title_fullStr |
Swarm and ESR observations of the ionospheric response to a field‐aligned current system in the high‐latitude midnight sector |
title_full_unstemmed |
Swarm and ESR observations of the ionospheric response to a field‐aligned current system in the high‐latitude midnight sector |
title_sort |
swarm and esr observations of the ionospheric response to a field‐aligned current system in the high‐latitude midnight sector |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.science/hal-03166294 https://hal.science/hal-03166294/document https://hal.science/hal-03166294/file/Pitout-et-al_2015_grl53038.pdf https://doi.org/10.1002/2015gl064231 |
long_lat |
ENVELOPE(-67.150,-67.150,-66.967,-66.967) |
geographic |
Svalbard Langmuir |
geographic_facet |
Svalbard Langmuir |
genre |
Svalbard |
genre_facet |
Svalbard |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03166294 Geophysical Research Letters, 2015, 42, pp.4270 - 4279. ⟨10.1002/2015gl064231⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/2015gl064231 hal-03166294 https://hal.science/hal-03166294 https://hal.science/hal-03166294/document https://hal.science/hal-03166294/file/Pitout-et-al_2015_grl53038.pdf doi:10.1002/2015gl064231 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/2015gl064231 |
container_title |
Geophysical Research Letters |
container_volume |
42 |
container_issue |
11 |
container_start_page |
4270 |
op_container_end_page |
4279 |
_version_ |
1766213197687160832 |