 |
| Titel |
Reconstruction of erythemal UV-doses for two stations in Austria: a comparison between alpine and urban regions |
| VerfasserIn |
H. E. Rieder, F. Holawe, S. Simic, M. Blumthaler, J. W. Krzyścin, J. E. Wagner, A. W. Schmalwieser, P. Weihs |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1680-7316
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 8, no. 20 ; Nr. 8, no. 20 (2008-10-31), S.6309-6323 |
| Datensatznummer |
250006430
|
| Publikation (Nr.) |
 copernicus.org/acp-8-6309-2008.pdf |
|
|
|
|
|
| Zusammenfassung |
| The aim of this study is the reconstruction of past UV-doses for two
stations in Austria, Hoher Sonnblick and Vienna, using a physical radiation
transfer model. The method uses the modeled UV-dose under clear-sky
conditions, cloud modification factors and a correction factor as input
variables. To identify the influence of temporal resolution of input data
and modification factors, an ensemble of four different modelling approaches
was calculated, each with hourly or daily resolution. This is especially
important because we found no other study describing the influence of the
temporal resolution of input data on model performance. Following the
results of the statistical analysis of the evaluation period the model with
the highest temporal resolution (HMC) was chosen for the reconstruction of
UV-doses. A good agreement between modelled and measured values of
erythemally effective UV-doses was found at both stations. In relation to
the reference period 1976–1985 an increase in the erythemal UV-dose in
Vienna of 11% is visible in the period 1986–1995 and an increase of
17% in the period 1996–2005 can be seen. At Hoher Sonnblick the
corresponding increase is 2% and 9%. For the different seasons the
strongest increase in erythemal UV-dose has been found for winter and spring
season at both stations. Further the influences of total ozone and
cloudiness on changes in erythemal UV-doses were analyzed. This analysis
showed for both stations, that changes in total ozone had a larger influence
on erythemal UV-doses than changes in cloudiness. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|