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| Titel |
Enhancement of stratospheric aerosols after solar proton event |
| VerfasserIn |
O. I. Shumilov, E. A. Kasatkina, K. Henriksen, E. V. Vashenyuk |
| 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 ; 14, no. 11 ; Nr. 14, no. 11, S.1119-1123 |
| Datensatznummer |
250012463
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| Publikation (Nr.) |
 copernicus.org/angeo-14-1119-1996.pdf |
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| Zusammenfassung |
| The lidar measurements at Verhnetulomski
observatory (68.6°N, 31.8°E) at Kola peninsula detected a considerable
increase of stratospheric aerosol concentration after the solar proton event of
GLE (ground level event) type on the 16/02/84. This increase was located at
precisely the same altitude range where the energetic solar protons lost their
energy in the atmosphere. The aerosol layer formed precipitated quickly (1–2 km
per day) during 18, 19, and 20 February 1984, and the increase of R(H)
(backscattering ratio) at 17 km altitude reached 40% on 20/02/84. We present the
model calculation of CN (condensation nuclei) altitude distribution on
the basis of an ion-nucleation mechanism, taking into account the experimental
energy distribution of incident solar protons. The meteorological situation
during the event was also investigated. |
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