A theoretical interpretation of ion composition measured on board the 'Active' satellite in the European sector during April 10−12, 1990 geomagnetic storm
Ion composition measurements on board the ACTIVE satellite during the recovery phase of a strong geomagnetic storm of 10-12 April 1990 revealed extremely high concentrations (up to 10<sup>3</sup> cm<sup>-3</sup>) of the NO<sup>+</sup>, O<sup>+</sup><...
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| Language: | English |
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Copernicus Publications
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| Series: | Annales Geophysicae |
| Online Access: | http://www.ann-geophys.net/13/608/1995/angeo-13-608-1995.html |
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doaj-b8d6784ce7b74c8385f5598ef28828ce2020-11-25T00:04:45ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-0576136608616A theoretical interpretation of ion composition measured on board the 'Active' satellite in the European sector during April 10−12, 1990 geomagnetic stormJ. SmilauerA. MikhailovV. MikhailovM. FörsterIon composition measurements on board the ACTIVE satellite during the recovery phase of a strong geomagnetic storm of 10-12 April 1990 revealed extremely high concentrations (up to 10<sup>3</sup> cm<sup>-3</sup>) of the NO<sup>+</sup>, O<sup>+</sup><sub>2</sub>, N<sup>+</sup><sub>2</sub> molecular ions in the topside F2-region of the European high-latitude zone. Concentrations of O<sup>+</sup>, N<sup>+</sup>, He<sup>+</sup>, H<sup>+</sup> light ions were slightly decreased relative to prestorm quite conditions. Theoretical calculations were used to analyze the observed variations in ion concentration. Increased neutral temperature and [O<sub>2</sub>], [N<sub>2</sub>] are shown to be the main reasons for the observed ion concentration variations. http://www.ann-geophys.net/13/608/1995/angeo-13-608-1995.html |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
J. Smilauer A. Mikhailov V. Mikhailov M. Förster |
| spellingShingle |
J. Smilauer A. Mikhailov V. Mikhailov M. Förster A theoretical interpretation of ion composition measured on board the 'Active' satellite in the European sector during April 10−12, 1990 geomagnetic storm Annales Geophysicae |
| author_facet |
J. Smilauer A. Mikhailov V. Mikhailov M. Förster |
| author_sort |
J. Smilauer |
| title |
A theoretical interpretation of ion composition measured on board the 'Active' satellite in the European sector during April 10−12, 1990 geomagnetic storm |
| title_short |
A theoretical interpretation of ion composition measured on board the 'Active' satellite in the European sector during April 10−12, 1990 geomagnetic storm |
| title_full |
A theoretical interpretation of ion composition measured on board the 'Active' satellite in the European sector during April 10−12, 1990 geomagnetic storm |
| title_fullStr |
A theoretical interpretation of ion composition measured on board the 'Active' satellite in the European sector during April 10−12, 1990 geomagnetic storm |
| title_full_unstemmed |
A theoretical interpretation of ion composition measured on board the 'Active' satellite in the European sector during April 10−12, 1990 geomagnetic storm |
| title_sort |
theoretical interpretation of ion composition measured on board the 'active' satellite in the european sector during april 10−12, 1990 geomagnetic storm |
| publisher |
Copernicus Publications |
| series |
Annales Geophysicae |
| issn |
0992-7689 1432-0576 |
| description |
Ion composition measurements on board the ACTIVE satellite during the recovery phase of a strong geomagnetic storm of 10-12 April 1990 revealed extremely high concentrations (up to 10<sup>3</sup> cm<sup>-3</sup>) of the NO<sup>+</sup>, O<sup>+</sup><sub>2</sub>, N<sup>+</sup><sub>2</sub> molecular ions in the topside F2-region of the European high-latitude zone. Concentrations of O<sup>+</sup>, N<sup>+</sup>, He<sup>+</sup>, H<sup>+</sup> light ions were slightly decreased relative to prestorm quite conditions. Theoretical calculations were used to analyze the observed variations in ion concentration. Increased neutral temperature and [O<sub>2</sub>], [N<sub>2</sub>] are shown to be the main reasons for the observed ion concentration variations. |
| url |
http://www.ann-geophys.net/13/608/1995/angeo-13-608-1995.html |
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