On the terms of geomagnetic daily variation in Antarctica
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 purpos...
Published in: | Annales Geophysicae |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2009
|
Subjects: | |
Online Access: | https://doi.org/10.5194/angeo-27-2483-2009 https://doaj.org/article/680d174ecc904c9ebd8aaab9f32d1fcb |
id |
ftdoajarticles:oai:doaj.org/article:680d174ecc904c9ebd8aaab9f32d1fcb |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:680d174ecc904c9ebd8aaab9f32d1fcb 2023-05-15T13:51:26+02:00 On the terms of geomagnetic daily variation in Antarctica P. De Michelis R. Tozzi A. Meloni 2009-06-01T00:00:00Z https://doi.org/10.5194/angeo-27-2483-2009 https://doaj.org/article/680d174ecc904c9ebd8aaab9f32d1fcb EN eng Copernicus Publications https://www.ann-geophys.net/27/2483/2009/angeo-27-2483-2009.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-27-2483-2009 0992-7689 1432-0576 https://doaj.org/article/680d174ecc904c9ebd8aaab9f32d1fcb Annales Geophysicae, Vol 27, Pp 2483-2490 (2009) Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 article 2009 ftdoajarticles https://doi.org/10.5194/angeo-27-2483-2009 2022-12-31T06:52:35Z 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 Directory of Open Access Journals: DOAJ Articles Mario Zucchelli ENVELOPE(164.123,164.123,-74.695,-74.695) Mario Zucchelli Station ENVELOPE(164.117,164.117,-74.700,-74.700) Annales Geophysicae 27 6 2483 2490 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 P. De Michelis R. Tozzi A. Meloni On the terms of geomagnetic daily variation in Antarctica |
topic_facet |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
description |
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 |
P. De Michelis R. Tozzi A. Meloni |
author_facet |
P. De Michelis R. Tozzi A. Meloni |
author_sort |
P. De Michelis |
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 |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doi.org/10.5194/angeo-27-2483-2009 https://doaj.org/article/680d174ecc904c9ebd8aaab9f32d1fcb |
long_lat |
ENVELOPE(164.123,164.123,-74.695,-74.695) ENVELOPE(164.117,164.117,-74.700,-74.700) |
geographic |
Mario Zucchelli Mario Zucchelli Station |
geographic_facet |
Mario Zucchelli Mario Zucchelli Station |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Annales Geophysicae, Vol 27, Pp 2483-2490 (2009) |
op_relation |
https://www.ann-geophys.net/27/2483/2009/angeo-27-2483-2009.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-27-2483-2009 0992-7689 1432-0576 https://doaj.org/article/680d174ecc904c9ebd8aaab9f32d1fcb |
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_ |
1766255305208889344 |