Daily variation at Concordia station (Antarctica) and its dependence on IMF conditions
After some short test surveys, during the 2004–2005 summer expedition in Antarctica, a geomagnetic French-Italian observatory was installed on the plateau (geographic coordinates: 75.1° S, 123.4° E; corrected geomagnetic coordinates: 88.9° S, 54.3° E; UT=LT−8) very close to the geomagnetic pole. In...
Published in: | Annales Geophysicae |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2007
|
Subjects: | |
Online Access: | https://doi.org/10.5194/angeo-25-2045-2007 https://noa.gwlb.de/receive/cop_mods_00032110 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00032064/angeo-25-2045-2007.pdf https://angeo.copernicus.org/articles/25/2045/2007/angeo-25-2045-2007.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00032110 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00032110 2023-05-15T13:36:44+02:00 Daily variation at Concordia station (Antarctica) and its dependence on IMF conditions Cafarella, L. Di Mauro, D. Lepidi, S. Meloni, A. Pietrolungo, M. Santarelli, L. Schott, J. J. 2007-10 electronic https://doi.org/10.5194/angeo-25-2045-2007 https://noa.gwlb.de/receive/cop_mods_00032110 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00032064/angeo-25-2045-2007.pdf https://angeo.copernicus.org/articles/25/2045/2007/angeo-25-2045-2007.pdf eng eng Copernicus Publications Annales Geophysicae -- http://www.bibliothek.uni-regensburg.de/ezeit/?1458425 -- https://www.ann-geophys.net/ -- https://www.ann-geophys.net/volumes.html -- http://link.springer.com/journal/585 -- 1432-0576 https://doi.org/10.5194/angeo-25-2045-2007 https://noa.gwlb.de/receive/cop_mods_00032110 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00032064/angeo-25-2045-2007.pdf https://angeo.copernicus.org/articles/25/2045/2007/angeo-25-2045-2007.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2007 ftnonlinearchiv https://doi.org/10.5194/angeo-25-2045-2007 2022-02-08T22:46:24Z After some short test surveys, during the 2004–2005 summer expedition in Antarctica, a geomagnetic French-Italian observatory was installed on the plateau (geographic coordinates: 75.1° S, 123.4° E; corrected geomagnetic coordinates: 88.9° S, 54.3° E; UT=LT−8) very close to the geomagnetic pole. In this paper we present some peculiarities of the daily variation as observed at this polar cap observatory during the years 2005 and 2006, taking into account the different Loyd seasons and different interplanetary magnetic field conditions. Some interesting results emerge from the analysis, confirming the dependence of the daily variation (and of the associated polar current systems) on the IMF Bz and By components. In particular the analysis showed that different Bz conditions correspond to different contribution to daily variation of ionospheric and field aligned currents, while particular By conditions lead to a time shift of the diurnal variation, indicating an asymmetry with respect to the noon meridian. Article in Journal/Newspaper Antarc* Antarctica Geomagnetic Pole Niedersächsisches Online-Archiv NOA Concordia Station ENVELOPE(123.333,123.333,-75.100,-75.100) Annales Geophysicae 25 9 2045 2051 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Cafarella, L. Di Mauro, D. Lepidi, S. Meloni, A. Pietrolungo, M. Santarelli, L. Schott, J. J. Daily variation at Concordia station (Antarctica) and its dependence on IMF conditions |
topic_facet |
article Verlagsveröffentlichung |
description |
After some short test surveys, during the 2004–2005 summer expedition in Antarctica, a geomagnetic French-Italian observatory was installed on the plateau (geographic coordinates: 75.1° S, 123.4° E; corrected geomagnetic coordinates: 88.9° S, 54.3° E; UT=LT−8) very close to the geomagnetic pole. In this paper we present some peculiarities of the daily variation as observed at this polar cap observatory during the years 2005 and 2006, taking into account the different Loyd seasons and different interplanetary magnetic field conditions. Some interesting results emerge from the analysis, confirming the dependence of the daily variation (and of the associated polar current systems) on the IMF Bz and By components. In particular the analysis showed that different Bz conditions correspond to different contribution to daily variation of ionospheric and field aligned currents, while particular By conditions lead to a time shift of the diurnal variation, indicating an asymmetry with respect to the noon meridian. |
format |
Article in Journal/Newspaper |
author |
Cafarella, L. Di Mauro, D. Lepidi, S. Meloni, A. Pietrolungo, M. Santarelli, L. Schott, J. J. |
author_facet |
Cafarella, L. Di Mauro, D. Lepidi, S. Meloni, A. Pietrolungo, M. Santarelli, L. Schott, J. J. |
author_sort |
Cafarella, L. |
title |
Daily variation at Concordia station (Antarctica) and its dependence on IMF conditions |
title_short |
Daily variation at Concordia station (Antarctica) and its dependence on IMF conditions |
title_full |
Daily variation at Concordia station (Antarctica) and its dependence on IMF conditions |
title_fullStr |
Daily variation at Concordia station (Antarctica) and its dependence on IMF conditions |
title_full_unstemmed |
Daily variation at Concordia station (Antarctica) and its dependence on IMF conditions |
title_sort |
daily variation at concordia station (antarctica) and its dependence on imf conditions |
publisher |
Copernicus Publications |
publishDate |
2007 |
url |
https://doi.org/10.5194/angeo-25-2045-2007 https://noa.gwlb.de/receive/cop_mods_00032110 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00032064/angeo-25-2045-2007.pdf https://angeo.copernicus.org/articles/25/2045/2007/angeo-25-2045-2007.pdf |
long_lat |
ENVELOPE(123.333,123.333,-75.100,-75.100) |
geographic |
Concordia Station |
geographic_facet |
Concordia Station |
genre |
Antarc* Antarctica Geomagnetic Pole |
genre_facet |
Antarc* Antarctica Geomagnetic Pole |
op_relation |
Annales Geophysicae -- http://www.bibliothek.uni-regensburg.de/ezeit/?1458425 -- https://www.ann-geophys.net/ -- https://www.ann-geophys.net/volumes.html -- http://link.springer.com/journal/585 -- 1432-0576 https://doi.org/10.5194/angeo-25-2045-2007 https://noa.gwlb.de/receive/cop_mods_00032110 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00032064/angeo-25-2045-2007.pdf https://angeo.copernicus.org/articles/25/2045/2007/angeo-25-2045-2007.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/angeo-25-2045-2007 |
container_title |
Annales Geophysicae |
container_volume |
25 |
container_issue |
9 |
container_start_page |
2045 |
op_container_end_page |
2051 |
_version_ |
1766082997850734592 |