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Titel |
Episode of unusual high solar ultraviolet radiation over central Europe due to dynamical reduced total ozone in May 2005 |
VerfasserIn |
C. Stick, K. Krüger, N. H. Schade, H. Sandmann, A. Macke |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1680-7316
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Digitales Dokument |
URL |
Erschienen |
In: Atmospheric Chemistry and Physics ; 6, no. 7 ; Nr. 6, no. 7 (2006-05-29), S.1771-1776 |
Datensatznummer |
250003887
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Publikation (Nr.) |
copernicus.org/acp-6-1771-2006.pdf |
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Zusammenfassung |
In late May 2005 unusual high levels of solar ultraviolet radiation were
observed over central Europe. In Northern Germany the measured irradiance of
erythemally effective radiation exceeded the climatological mean by more
than about 20%. An extreme low ozone event for the season coincided with
high solar elevation angles and high pressure induced clear sky conditions
leading to the highest value of erythemal UV-radiation ever observed over
this location in May since 1994. This hereafter called "ozone mini-hole"
was caused by an elevation of tropopause height accompanied with a poleward
advection of ozone-poor air from the tropics. The resultant increase in
UV-radiation is of particular significance for human health. Dynamically
induced low ozone episodes that happen in late spring can considerably
enhance the solar UV-radiation in mid latitudes and therefore contribute to
the UV-burden of people living in these regions. |
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