On the terms of geomagnetic daily variation in Antarctica
Abstract. The target of this work is to investigate the nature of magnetic perturbations produced by ionospheric and magnetospheric currents as recorded at high-latitude geomagnetic stations. In particular, we investigate the effects of these currents on geomagnetic data recorded in Antarctica. To t...
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ftopenaccessrep:oai:zenodo.org:131055 2023-10-29T02:32:29+01:00 On the terms of geomagnetic daily variation in Antarctica Antonio Meloni Roberta Tozzi P. De Michelis 2009-06-22 https://www.openaccessrepository.it/record/131055 https://doi.org/10.5194/angeo-27-2483-2009 eng eng url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/131055 doi:10.5194/angeo-27-2483-2009 info:eu-repo/semantics/openAccess http://www.opendefinition.org/licenses/cc-by NEANIAS Atmospheric Research Community Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Atmospheric Science Geology Astronomy and Astrophysics info:eu-repo/semantics/article publication-article 2009 ftopenaccessrep https://doi.org/10.5194/angeo-27-2483-2009 2023-10-03T22:18:26Z Abstract. The target of this work is to investigate the nature of magnetic perturbations produced by ionospheric and magnetospheric currents as recorded at high-latitude geomagnetic stations. In particular, we investigate the effects of these currents on geomagnetic data recorded in Antarctica. To this purpose we apply a mathematical method, known as Natural Orthogonal Composition, to analyze the magnetic field disturbances along the three geomagnetic field components (X, Y and Z) recorded at Mario Zucchelli Station (IAGA code TNB; geographic coordinates: 74.7° S, 164.1° E) from 1995 to 1998. Using this type of analysis, we characterize the dominant modes of the geomagnetic field daily variability through a set of empirical orthogonal functions (EOFs). While such mathematically independent EOFs do not necessarily represent physically independent modes of variability, we find that some of them are actually related to well known current patterns located at high latitudes. Article in Journal/Newspaper Antarc* Antarctica Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository Annales Geophysicae 27 6 2483 2490 |
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Open Polar |
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Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
op_collection_id |
ftopenaccessrep |
language |
English |
topic |
NEANIAS Atmospheric Research Community Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Atmospheric Science Geology Astronomy and Astrophysics |
spellingShingle |
NEANIAS Atmospheric Research Community Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Atmospheric Science Geology Astronomy and Astrophysics Antonio Meloni Roberta Tozzi P. De Michelis On the terms of geomagnetic daily variation in Antarctica |
topic_facet |
NEANIAS Atmospheric Research Community Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Atmospheric Science Geology Astronomy and Astrophysics |
description |
Abstract. The target of this work is to investigate the nature of magnetic perturbations produced by ionospheric and magnetospheric currents as recorded at high-latitude geomagnetic stations. In particular, we investigate the effects of these currents on geomagnetic data recorded in Antarctica. To this purpose we apply a mathematical method, known as Natural Orthogonal Composition, to analyze the magnetic field disturbances along the three geomagnetic field components (X, Y and Z) recorded at Mario Zucchelli Station (IAGA code TNB; geographic coordinates: 74.7° S, 164.1° E) from 1995 to 1998. Using this type of analysis, we characterize the dominant modes of the geomagnetic field daily variability through a set of empirical orthogonal functions (EOFs). While such mathematically independent EOFs do not necessarily represent physically independent modes of variability, we find that some of them are actually related to well known current patterns located at high latitudes. |
format |
Article in Journal/Newspaper |
author |
Antonio Meloni Roberta Tozzi P. De Michelis |
author_facet |
Antonio Meloni Roberta Tozzi P. De Michelis |
author_sort |
Antonio Meloni |
title |
On the terms of geomagnetic daily variation in Antarctica |
title_short |
On the terms of geomagnetic daily variation in Antarctica |
title_full |
On the terms of geomagnetic daily variation in Antarctica |
title_fullStr |
On the terms of geomagnetic daily variation in Antarctica |
title_full_unstemmed |
On the terms of geomagnetic daily variation in Antarctica |
title_sort |
on the terms of geomagnetic daily variation in antarctica |
publishDate |
2009 |
url |
https://www.openaccessrepository.it/record/131055 https://doi.org/10.5194/angeo-27-2483-2009 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/131055 doi:10.5194/angeo-27-2483-2009 |
op_rights |
info:eu-repo/semantics/openAccess http://www.opendefinition.org/licenses/cc-by |
op_doi |
https://doi.org/10.5194/angeo-27-2483-2009 |
container_title |
Annales Geophysicae |
container_volume |
27 |
container_issue |
6 |
container_start_page |
2483 |
op_container_end_page |
2490 |
_version_ |
1781053961962258432 |