Analysis of the Forbush Decreases and Ground‐Level Enhancement on September 2017 Using Neutron Spectrometers Operated in Antarctic and Midlatitude Stations
International audience This work investigates solar events occurred in September 2017 characterized by a series of Forbush decreases and a ground level enhancement (GLE). Forbush decreases is a rapid decrease in the observed https://en.wikipedia.org/wiki/Galactic_cosmic_ray intensity following a cor...
Published in: | Journal of Geophysical Research: Space Physics |
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ftccsdartic:oai:HAL:hal-02346795v1 2023-05-15T13:47:30+02:00 Analysis of the Forbush Decreases and Ground‐Level Enhancement on September 2017 Using Neutron Spectrometers Operated in Antarctic and Midlatitude Stations Hubert, Guillaume Pazianotto, Maurizio T. Federico, Claudio Antonio Ricaud, P. ONERA / DPHY, Université de Toulouse Toulouse ONERA-PRES Université de Toulouse Instituto Tecnológico de Aeronáutica São José dos Campos (ITA) Instituto de Estudos Avançados (IEAV) Institut Laboratoire d'aérologie (LAERO) Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées Météo France 2019-01-22 https://hal.archives-ouvertes.fr/hal-02346795 https://hal.archives-ouvertes.fr/hal-02346795/document https://hal.archives-ouvertes.fr/hal-02346795/file/2018JA025834.pdf https://doi.org/10.1029/2018JA025834 en eng HAL CCSD American Geophysical Union/Wiley info:eu-repo/semantics/altIdentifier/doi/10.1029/2018JA025834 hal-02346795 https://hal.archives-ouvertes.fr/hal-02346795 https://hal.archives-ouvertes.fr/hal-02346795/document https://hal.archives-ouvertes.fr/hal-02346795/file/2018JA025834.pdf doi:10.1029/2018JA025834 info:eu-repo/semantics/OpenAccess ISSN: 2169-9380 EISSN: 2169-9402 Journal of Geophysical Research Space Physics https://hal.archives-ouvertes.fr/hal-02346795 Journal of Geophysical Research Space Physics, American Geophysical Union/Wiley, 2019, 124 (1), pp.661-673. ⟨10.1029/2018JA025834⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2019 ftccsdartic https://doi.org/10.1029/2018JA025834 2021-12-12T00:58:05Z International audience This work investigates solar events occurred in September 2017 characterized by a series of Forbush decreases and a ground level enhancement (GLE). Forbush decreases is a rapid decrease in the observed https://en.wikipedia.org/wiki/Galactic_cosmic_ray intensity following a coronal mass ejection while GLE is induced by a strong solar event for which the flux of high‐energy solar particles is sufficient to enhance the radiation level on the ground. These investigations were performed using data recorded by a neutron spectrometer network composed of a Bonner sphere system. Two instruments located at Pic‐du‐Midi Observatory (+2,885 m above sea level) and at Concordia station (Antarctica, +3,233 m) record simultaneously and continuously the neutron spectra, allowing to consider short‐term variations during solar events. The main objective is to analyze neutron spectral properties including their energy distributions and dynamics. This paper presents cosmic ray‐induced neutron spectra during active solar event leading to changes in the local cosmic ray spectrum (Forbush decreases and a GLE). Concerning the GLE, analyses show that neutrons in the evaporation domain are particularly amplified during the GLE, while other energetic domains increase uniformly. Article in Journal/Newspaper Antarc* Antarctic Antarctica Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Concordia Station ENVELOPE(123.333,123.333,-75.100,-75.100) Journal of Geophysical Research: Space Physics 124 1 661 673 |
institution |
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.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Hubert, Guillaume Pazianotto, Maurizio T. Federico, Claudio Antonio Ricaud, P. Analysis of the Forbush Decreases and Ground‐Level Enhancement on September 2017 Using Neutron Spectrometers Operated in Antarctic and Midlatitude Stations |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience This work investigates solar events occurred in September 2017 characterized by a series of Forbush decreases and a ground level enhancement (GLE). Forbush decreases is a rapid decrease in the observed https://en.wikipedia.org/wiki/Galactic_cosmic_ray intensity following a coronal mass ejection while GLE is induced by a strong solar event for which the flux of high‐energy solar particles is sufficient to enhance the radiation level on the ground. These investigations were performed using data recorded by a neutron spectrometer network composed of a Bonner sphere system. Two instruments located at Pic‐du‐Midi Observatory (+2,885 m above sea level) and at Concordia station (Antarctica, +3,233 m) record simultaneously and continuously the neutron spectra, allowing to consider short‐term variations during solar events. The main objective is to analyze neutron spectral properties including their energy distributions and dynamics. This paper presents cosmic ray‐induced neutron spectra during active solar event leading to changes in the local cosmic ray spectrum (Forbush decreases and a GLE). Concerning the GLE, analyses show that neutrons in the evaporation domain are particularly amplified during the GLE, while other energetic domains increase uniformly. |
author2 |
ONERA / DPHY, Université de Toulouse Toulouse ONERA-PRES Université de Toulouse Instituto Tecnológico de Aeronáutica São José dos Campos (ITA) Instituto de Estudos Avançados (IEAV) Institut Laboratoire d'aérologie (LAERO) Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées Météo France |
format |
Article in Journal/Newspaper |
author |
Hubert, Guillaume Pazianotto, Maurizio T. Federico, Claudio Antonio Ricaud, P. |
author_facet |
Hubert, Guillaume Pazianotto, Maurizio T. Federico, Claudio Antonio Ricaud, P. |
author_sort |
Hubert, Guillaume |
title |
Analysis of the Forbush Decreases and Ground‐Level Enhancement on September 2017 Using Neutron Spectrometers Operated in Antarctic and Midlatitude Stations |
title_short |
Analysis of the Forbush Decreases and Ground‐Level Enhancement on September 2017 Using Neutron Spectrometers Operated in Antarctic and Midlatitude Stations |
title_full |
Analysis of the Forbush Decreases and Ground‐Level Enhancement on September 2017 Using Neutron Spectrometers Operated in Antarctic and Midlatitude Stations |
title_fullStr |
Analysis of the Forbush Decreases and Ground‐Level Enhancement on September 2017 Using Neutron Spectrometers Operated in Antarctic and Midlatitude Stations |
title_full_unstemmed |
Analysis of the Forbush Decreases and Ground‐Level Enhancement on September 2017 Using Neutron Spectrometers Operated in Antarctic and Midlatitude Stations |
title_sort |
analysis of the forbush decreases and ground‐level enhancement on september 2017 using neutron spectrometers operated in antarctic and midlatitude stations |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.archives-ouvertes.fr/hal-02346795 https://hal.archives-ouvertes.fr/hal-02346795/document https://hal.archives-ouvertes.fr/hal-02346795/file/2018JA025834.pdf https://doi.org/10.1029/2018JA025834 |
long_lat |
ENVELOPE(123.333,123.333,-75.100,-75.100) |
geographic |
Antarctic Concordia Station |
geographic_facet |
Antarctic Concordia Station |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
ISSN: 2169-9380 EISSN: 2169-9402 Journal of Geophysical Research Space Physics https://hal.archives-ouvertes.fr/hal-02346795 Journal of Geophysical Research Space Physics, American Geophysical Union/Wiley, 2019, 124 (1), pp.661-673. ⟨10.1029/2018JA025834⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2018JA025834 hal-02346795 https://hal.archives-ouvertes.fr/hal-02346795 https://hal.archives-ouvertes.fr/hal-02346795/document https://hal.archives-ouvertes.fr/hal-02346795/file/2018JA025834.pdf doi:10.1029/2018JA025834 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2018JA025834 |
container_title |
Journal of Geophysical Research: Space Physics |
container_volume |
124 |
container_issue |
1 |
container_start_page |
661 |
op_container_end_page |
673 |
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1766247240176762880 |