Observing the north polar ionosphere on 30 October 2003 by GPS imaging and IS radars
The evening of 30 October 2003 was subject to a major storm main phase. For this time, we combine large-scale electron content maps from GPS imaging with time series of electron density and temperature of two EISCAT radars in Tromsø and Svalbard and the Sondrestrom radar, for observing the north pol...
Published in: | Annales Geophysicae |
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00033493 2023-05-15T16:04:45+02:00 Observing the north polar ionosphere on 30 October 2003 by GPS imaging and IS radars Stolle, C. Lilensten, J. Schlüter, S. Jacobi, Ch. Rietveld, M. Lühr, H. 2006-03 electronic https://doi.org/10.5194/angeo-24-107-2006 https://noa.gwlb.de/receive/cop_mods_00033493 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00033447/angeo-24-107-2006.pdf https://angeo.copernicus.org/articles/24/107/2006/angeo-24-107-2006.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-24-107-2006 https://noa.gwlb.de/receive/cop_mods_00033493 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00033447/angeo-24-107-2006.pdf https://angeo.copernicus.org/articles/24/107/2006/angeo-24-107-2006.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2006 ftnonlinearchiv https://doi.org/10.5194/angeo-24-107-2006 2022-02-08T22:45:45Z The evening of 30 October 2003 was subject to a major storm main phase. For this time, we combine large-scale electron content maps from GPS imaging with time series of electron density and temperature of two EISCAT radars in Tromsø and Svalbard and the Sondrestrom radar, for observing the north polar ionosphere. The GPS assimilations resulted in the image of the electron content trace of an anti-sunward polar Tongue Of Ionisation (TOI) consecutively to 20:00 UT. In combination with the radar observations we concluded that the TOI persisted during the whole period of continuous southward IMF Bz until about 22:40 UT while its largest extension toward the nightside auroral region was found between 21:00-22:00 UT. A typical F region electron temperature of ~2000 K and the plasma velocity of ~800 ms-1 support its convective origin from the dayside mid-latitudes. Due to the structured appearance of the electron content distribution and the radar electron density time series we believe that discrete plasma patches formed inside the anti-sunward drift pattern. After two large oscillations of the IMF Bz the nightside plasma density was observed to re-enhance after 23:00 UT along a longitudinal band below 70 N. Coinciding electron temperatures of ~2000 K suggest again the convective nature of the plasma, while a modified convection pattern is expected. Article in Journal/Newspaper EISCAT Svalbard Tromsø Niedersächsisches Online-Archiv NOA Svalbard Tromsø Annales Geophysicae 24 1 107 113 |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Stolle, C. Lilensten, J. Schlüter, S. Jacobi, Ch. Rietveld, M. Lühr, H. Observing the north polar ionosphere on 30 October 2003 by GPS imaging and IS radars |
topic_facet |
article Verlagsveröffentlichung |
description |
The evening of 30 October 2003 was subject to a major storm main phase. For this time, we combine large-scale electron content maps from GPS imaging with time series of electron density and temperature of two EISCAT radars in Tromsø and Svalbard and the Sondrestrom radar, for observing the north polar ionosphere. The GPS assimilations resulted in the image of the electron content trace of an anti-sunward polar Tongue Of Ionisation (TOI) consecutively to 20:00 UT. In combination with the radar observations we concluded that the TOI persisted during the whole period of continuous southward IMF Bz until about 22:40 UT while its largest extension toward the nightside auroral region was found between 21:00-22:00 UT. A typical F region electron temperature of ~2000 K and the plasma velocity of ~800 ms-1 support its convective origin from the dayside mid-latitudes. Due to the structured appearance of the electron content distribution and the radar electron density time series we believe that discrete plasma patches formed inside the anti-sunward drift pattern. After two large oscillations of the IMF Bz the nightside plasma density was observed to re-enhance after 23:00 UT along a longitudinal band below 70 N. Coinciding electron temperatures of ~2000 K suggest again the convective nature of the plasma, while a modified convection pattern is expected. |
format |
Article in Journal/Newspaper |
author |
Stolle, C. Lilensten, J. Schlüter, S. Jacobi, Ch. Rietveld, M. Lühr, H. |
author_facet |
Stolle, C. Lilensten, J. Schlüter, S. Jacobi, Ch. Rietveld, M. Lühr, H. |
author_sort |
Stolle, C. |
title |
Observing the north polar ionosphere on 30 October 2003 by GPS imaging and IS radars |
title_short |
Observing the north polar ionosphere on 30 October 2003 by GPS imaging and IS radars |
title_full |
Observing the north polar ionosphere on 30 October 2003 by GPS imaging and IS radars |
title_fullStr |
Observing the north polar ionosphere on 30 October 2003 by GPS imaging and IS radars |
title_full_unstemmed |
Observing the north polar ionosphere on 30 October 2003 by GPS imaging and IS radars |
title_sort |
observing the north polar ionosphere on 30 october 2003 by gps imaging and is radars |
publisher |
Copernicus Publications |
publishDate |
2006 |
url |
https://doi.org/10.5194/angeo-24-107-2006 https://noa.gwlb.de/receive/cop_mods_00033493 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00033447/angeo-24-107-2006.pdf https://angeo.copernicus.org/articles/24/107/2006/angeo-24-107-2006.pdf |
geographic |
Svalbard Tromsø |
geographic_facet |
Svalbard Tromsø |
genre |
EISCAT Svalbard Tromsø |
genre_facet |
EISCAT Svalbard Tromsø |
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-24-107-2006 https://noa.gwlb.de/receive/cop_mods_00033493 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00033447/angeo-24-107-2006.pdf https://angeo.copernicus.org/articles/24/107/2006/angeo-24-107-2006.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/angeo-24-107-2006 |
container_title |
Annales Geophysicae |
container_volume |
24 |
container_issue |
1 |
container_start_page |
107 |
op_container_end_page |
113 |
_version_ |
1766400384562102272 |