Episode of unusual high solar ultraviolet radiation over central Europe due to dynamical reduced total ozone in May 2005
| Autor: | Kirstin Krüger, Andreas Macke, H. Sandmann, Nils Schade, C. Stick |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Atmospheric Science
Ozone 010504 meteorology & atmospheric sciences Advection Irradiance Elevation Tropics 010502 geochemistry & geophysics Atmospheric sciences 01 natural sciences Solar ultraviolet radiation lcsh:QC1-999 lcsh:Chemistry chemistry.chemical_compound chemistry lcsh:QD1-999 13. Climate action Middle latitudes Climatology Environmental science Tropopause lcsh:Physics 0105 earth and related environmental sciences |
| Zdroj: | Atmospheric Chemistry and Physics, Vol 6, Iss 7, Pp 1771-1776 (2006) |
| ISSN: | 1680-7324 1680-7316 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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