Solar cycle 22 control on daily geomagnetic variation at Terra Nova Bay (Antarctica)
Nine summer geomagnetic observatory data (1986-1995) from Terra Nova Bay Base, Antarctica (Lat.74.690S, Long. 164.120E, 80.040S magnetic latitude) are used to investigate the behaviour of the daily variation of the geomagnetic field at polar latitude. The instrumentation includes a proton precession...
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
1998
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Online Access: | https://doi.org/10.4401/ag-3820 https://doaj.org/article/fd7dd2d4895341e89480f4b20a3fd62e |
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ftdoajarticles:oai:doaj.org/article:fd7dd2d4895341e89480f4b20a3fd62e 2023-05-15T14:01:28+02:00 Solar cycle 22 control on daily geomagnetic variation at Terra Nova Bay (Antarctica) P. Palangio A. Meloni L. Cafarella 1998-06-01T00:00:00Z https://doi.org/10.4401/ag-3820 https://doaj.org/article/fd7dd2d4895341e89480f4b20a3fd62e EN eng Istituto Nazionale di Geofisica e Vulcanologia (INGV) http://www.annalsofgeophysics.eu/index.php/annals/article/view/3820 https://doaj.org/toc/1593-5213 https://doaj.org/toc/2037-416X doi:10.4401/ag-3820 1593-5213 2037-416X https://doaj.org/article/fd7dd2d4895341e89480f4b20a3fd62e Annals of Geophysics, Vol 41, Iss 5-6 (1998) magnetic variations daily variation Antartica Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 article 1998 ftdoajarticles https://doi.org/10.4401/ag-3820 2022-12-31T02:17:28Z Nine summer geomagnetic observatory data (1986-1995) from Terra Nova Bay Base, Antarctica (Lat.74.690S, Long. 164.120E, 80.040S magnetic latitude) are used to investigate the behaviour of the daily variation of the geomagnetic field at polar latitude. The instrumentation includes a proton precession magnetometer for total intensity |F| digital recordings; DI magnetometers for absolute measuring of the angular elements D and I and a three axis flux-gate system for acquiring H,D Z time variation data. We find that the magnetic time variation amplitude follows the solar cycle evolution and that the ratio between minimum solar median and maximum solar median is between 2-3 for intensive elements (H and Z) and 1.7 for declination(D). The solar cycle effect on geomagnetic daily variation elements amplitude in Antarctica, in comparison with previous studies, is then probably larger than expected. As a consequence, the electric current system that causes the daily magnetic field variation reveals a quite large solar cycle effect at Terra Nova Bay. Article in Journal/Newspaper Antarc* Antarctica antartic* Directory of Open Access Journals: DOAJ Articles Terra Nova Bay Annals of Geophysics 41 5-6 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
magnetic variations daily variation Antartica Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
magnetic variations daily variation Antartica Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 P. Palangio A. Meloni L. Cafarella Solar cycle 22 control on daily geomagnetic variation at Terra Nova Bay (Antarctica) |
topic_facet |
magnetic variations daily variation Antartica Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
description |
Nine summer geomagnetic observatory data (1986-1995) from Terra Nova Bay Base, Antarctica (Lat.74.690S, Long. 164.120E, 80.040S magnetic latitude) are used to investigate the behaviour of the daily variation of the geomagnetic field at polar latitude. The instrumentation includes a proton precession magnetometer for total intensity |F| digital recordings; DI magnetometers for absolute measuring of the angular elements D and I and a three axis flux-gate system for acquiring H,D Z time variation data. We find that the magnetic time variation amplitude follows the solar cycle evolution and that the ratio between minimum solar median and maximum solar median is between 2-3 for intensive elements (H and Z) and 1.7 for declination(D). The solar cycle effect on geomagnetic daily variation elements amplitude in Antarctica, in comparison with previous studies, is then probably larger than expected. As a consequence, the electric current system that causes the daily magnetic field variation reveals a quite large solar cycle effect at Terra Nova Bay. |
format |
Article in Journal/Newspaper |
author |
P. Palangio A. Meloni L. Cafarella |
author_facet |
P. Palangio A. Meloni L. Cafarella |
author_sort |
P. Palangio |
title |
Solar cycle 22 control on daily geomagnetic variation at Terra Nova Bay (Antarctica) |
title_short |
Solar cycle 22 control on daily geomagnetic variation at Terra Nova Bay (Antarctica) |
title_full |
Solar cycle 22 control on daily geomagnetic variation at Terra Nova Bay (Antarctica) |
title_fullStr |
Solar cycle 22 control on daily geomagnetic variation at Terra Nova Bay (Antarctica) |
title_full_unstemmed |
Solar cycle 22 control on daily geomagnetic variation at Terra Nova Bay (Antarctica) |
title_sort |
solar cycle 22 control on daily geomagnetic variation at terra nova bay (antarctica) |
publisher |
Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
publishDate |
1998 |
url |
https://doi.org/10.4401/ag-3820 https://doaj.org/article/fd7dd2d4895341e89480f4b20a3fd62e |
geographic |
Terra Nova Bay |
geographic_facet |
Terra Nova Bay |
genre |
Antarc* Antarctica antartic* |
genre_facet |
Antarc* Antarctica antartic* |
op_source |
Annals of Geophysics, Vol 41, Iss 5-6 (1998) |
op_relation |
http://www.annalsofgeophysics.eu/index.php/annals/article/view/3820 https://doaj.org/toc/1593-5213 https://doaj.org/toc/2037-416X doi:10.4401/ag-3820 1593-5213 2037-416X https://doaj.org/article/fd7dd2d4895341e89480f4b20a3fd62e |
op_doi |
https://doi.org/10.4401/ag-3820 |
container_title |
Annals of Geophysics |
container_volume |
41 |
container_issue |
5-6 |
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1766271315435585536 |