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| Titel |
Satellite-based analysis of thermosphere response to extreme solar flares |
| VerfasserIn |
S. Krauss, M. Pfleger, H. Lammer |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 32, no. 10 ; Nr. 32, no. 10 (2014-10-28), S.1305-1309 |
| Datensatznummer |
250121123
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| Publikation (Nr.) |
 copernicus.org/angeo-32-1305-2014.pdf |
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| Zusammenfassung |
| We present a refined algorithm to calculate pseudo solar indices, which
enable the reproduction of a solar flare impact on the upper Earth's
atmosphere for the empirical thermosphere model Jacchia-Bowman 2008. In a
first step we compare the estimates of the new algorithm with those from a
previous study by analysing an extreme X17.2 flare in 2003 using TIMED/SEE
EUV observations. In a second step we adapt the method to use SOHO/SEM
measurements within the algorithm and compare the findings with the previous
results. Furthermore, the latter procedure is validated by means of GRACE
density measurements during a X2.0 solar flare in November 2004. In each of
the cases also a comparison with theoretical thermosphere models is
performed, which shows a good agreement and suggests that the algorithm can
support theoretical evolution studies in case no in situ density
measurements during extreme solar events are available. |
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