Low-frequency (0.7-7.4 mHz) geomagnetic field fluctuations at high latitude: frequency dependence of the polarization pattern
A statistical analysis of the polarization pattern of low-frequency geomagnetic field fluctuations (0.7-7.4 mHz) covering the entire 24-h interval was performed at the Antarctic station Terra Nova Bay (80.0°S geomagnetic latitude) throughout 1997 and 1998. The results show that the polarization patt...
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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ftdoajarticles:oai:doaj.org/article:5a3e18eb196548f693bb62290c28e038 2023-05-15T13:57:23+02:00 Low-frequency (0.7-7.4 mHz) geomagnetic field fluctuations at high latitude: frequency dependence of the polarization pattern L. Cafarella P. Francia S. Lepidi 2001-06-01T00:00:00Z https://doi.org/10.4401/ag-3576 https://doaj.org/article/5a3e18eb196548f693bb62290c28e038 EN eng Istituto Nazionale di Geofisica e Vulcanologia (INGV) http://www.annalsofgeophysics.eu/index.php/annals/article/view/3576 https://doaj.org/toc/1593-5213 https://doaj.org/toc/2037-416X doi:10.4401/ag-3576 1593-5213 2037-416X https://doaj.org/article/5a3e18eb196548f693bb62290c28e038 Annals of Geophysics, Vol 44, Iss 3 (2001) Geomagnetic pulsation MHD waves and instabilities wave polarizations Antartica Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 article 2001 ftdoajarticles https://doi.org/10.4401/ag-3576 2022-12-31T04:05:30Z A statistical analysis of the polarization pattern of low-frequency geomagnetic field fluctuations (0.7-7.4 mHz) covering the entire 24-h interval was performed at the Antarctic station Terra Nova Bay (80.0°S geomagnetic latitude) throughout 1997 and 1998. The results show that the polarization pattern exhibits a frequency dependence, as can be expected from the frequency dependence of the latitude where the coupling between the magnetospheric compressional mode and the field line resonance takes place. The polarization analysis of single pulsation events shows that wave packets with different polarization sense, depending on frequency, can be simultaneously observed. Article in Journal/Newspaper Antarc* Antarctic antartic* Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Terra Nova Bay Annals of Geophysics 44 3 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geomagnetic pulsation MHD waves and instabilities wave polarizations Antartica Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Geomagnetic pulsation MHD waves and instabilities wave polarizations Antartica Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 L. Cafarella P. Francia S. Lepidi Low-frequency (0.7-7.4 mHz) geomagnetic field fluctuations at high latitude: frequency dependence of the polarization pattern |
topic_facet |
Geomagnetic pulsation MHD waves and instabilities wave polarizations Antartica Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
description |
A statistical analysis of the polarization pattern of low-frequency geomagnetic field fluctuations (0.7-7.4 mHz) covering the entire 24-h interval was performed at the Antarctic station Terra Nova Bay (80.0°S geomagnetic latitude) throughout 1997 and 1998. The results show that the polarization pattern exhibits a frequency dependence, as can be expected from the frequency dependence of the latitude where the coupling between the magnetospheric compressional mode and the field line resonance takes place. The polarization analysis of single pulsation events shows that wave packets with different polarization sense, depending on frequency, can be simultaneously observed. |
format |
Article in Journal/Newspaper |
author |
L. Cafarella P. Francia S. Lepidi |
author_facet |
L. Cafarella P. Francia S. Lepidi |
author_sort |
L. Cafarella |
title |
Low-frequency (0.7-7.4 mHz) geomagnetic field fluctuations at high latitude: frequency dependence of the polarization pattern |
title_short |
Low-frequency (0.7-7.4 mHz) geomagnetic field fluctuations at high latitude: frequency dependence of the polarization pattern |
title_full |
Low-frequency (0.7-7.4 mHz) geomagnetic field fluctuations at high latitude: frequency dependence of the polarization pattern |
title_fullStr |
Low-frequency (0.7-7.4 mHz) geomagnetic field fluctuations at high latitude: frequency dependence of the polarization pattern |
title_full_unstemmed |
Low-frequency (0.7-7.4 mHz) geomagnetic field fluctuations at high latitude: frequency dependence of the polarization pattern |
title_sort |
low-frequency (0.7-7.4 mhz) geomagnetic field fluctuations at high latitude: frequency dependence of the polarization pattern |
publisher |
Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
publishDate |
2001 |
url |
https://doi.org/10.4401/ag-3576 https://doaj.org/article/5a3e18eb196548f693bb62290c28e038 |
geographic |
Antarctic The Antarctic Terra Nova Bay |
geographic_facet |
Antarctic The Antarctic Terra Nova Bay |
genre |
Antarc* Antarctic antartic* |
genre_facet |
Antarc* Antarctic antartic* |
op_source |
Annals of Geophysics, Vol 44, Iss 3 (2001) |
op_relation |
http://www.annalsofgeophysics.eu/index.php/annals/article/view/3576 https://doaj.org/toc/1593-5213 https://doaj.org/toc/2037-416X doi:10.4401/ag-3576 1593-5213 2037-416X https://doaj.org/article/5a3e18eb196548f693bb62290c28e038 |
op_doi |
https://doi.org/10.4401/ag-3576 |
container_title |
Annals of Geophysics |
container_volume |
44 |
container_issue |
3 |
_version_ |
1766265064118026240 |