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Reconstruction and analysis of erythemal UV radiation time series from Hradec Králové (Czech Republic) over the past 50 years
Název česky | Rekonstrukce a analýza časové řady erytémového UV slunečního záření z Hradce Králové (Česká republika) během posledních 50 let |
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Autoři | |
Rok publikování | 2018 |
Druh | Článek v odborném periodiku |
Časopis / Zdroj | Atmospheric Chemistry and Physics |
Fakulta / Pracoviště MU | |
Citace | |
www | https://www.atmos-chem-phys.net/18/1805/2018/acp-18-1805-2018.html |
Doi | http://dx.doi.org/10.5194/acp-18-1805-2018 |
Klíčová slova | erythemal UV radiation; ozone; cloud cover; solar radiation; Czech Republic |
Popis | This paper evaluates the variability of erythemal ultraviolet solar radiation from Hradec Králové (Czech Republic) in the period 1964–2013. The EUV radiation time series was reconstructed using a radiative transfer model and additional empirical relationships, with the final root mean square error of 9.9 %. The reconstructed time series documented the increase in EUV radiation doses in the 1980s and the 1990s (up to 15% per decade), which was linked to the steep decline in total ozone (10% per decade). The changes in cloud cover were the major factor affecting the EUV radiation doses especially in the 1960s, 1970s, and at the beginning of the new millennium. The mean annual EUV radiation doses in the decade 2004–2013 declined by 5 %. The number of days with very high EUV radiation doses increased by 22% per decade, the increase was statistically significant in all seasons except autumn. The occurrence of the days with very high EUV doses was influenced mostly by low total ozone column (82% of days), clear-sky or partly cloudy conditions (74% of days) and by increased surface albedo (19% of days). |
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