Italy is one of the European nations characterized by the highest levels of ultraviolet radiation (UV) therefore it was important for both the resident population and the numerous tourists to know the risk level deriving from UV exposure. Based on these considerations starting from 2004 at the Institute of Biometorology of National Reasearch Council (IBIMET-CNR), in cooperation with the LaMMA Consortium, a continuous UV monitoring activity was started. The UV monitoring station was located in Sesto Fiorentino (43° 82' N, 11° 20' E, 40 m a.s.l.), a suburb of Florence, Tuscany (Central Italy). The radiometer used was the UVB-501 (Solar Light CO., Philadelphia, USA) with spectral response close to the erythemal action spectrum, periodically compared with a reference instruments (of the same type as the operational one) calibrated during international inter-comparison campaigns. Continuous measurements of erythemally effective UV radiation (also converted in UV Index) and averaged over 15-min intervals were performed starting from 2004 and stored in a database. On the basis of these 14 years of data an UV Index climatology was obtained. During the last few decades, weather circulation type classifications (CTCs) have been widely used to gain insight into processes at the synoptic scale, but also for studying the relationship between atmospheric circulation and surface climate variability. As at LaMMA, were evaluate the best performing CTCs based on COST733 software for the stratification of daily ground-level precipitation and surface air temperature across Italy, in this study we have done a very preliminary investigation on possible relationships between UV and such CTCs; especially in certain periods of the year a relationship between specific weather circulation and UV was present.
UV radiation in Florence, Italy, (2004-2017) and its relationship with weather circulation types.
Grifoni D;Messeri G;Iannuccilli M;Tei C;Sabatini F;Betti G;Fibbi L;Gozzini B;Zipoli G
2018
Abstract
Italy is one of the European nations characterized by the highest levels of ultraviolet radiation (UV) therefore it was important for both the resident population and the numerous tourists to know the risk level deriving from UV exposure. Based on these considerations starting from 2004 at the Institute of Biometorology of National Reasearch Council (IBIMET-CNR), in cooperation with the LaMMA Consortium, a continuous UV monitoring activity was started. The UV monitoring station was located in Sesto Fiorentino (43° 82' N, 11° 20' E, 40 m a.s.l.), a suburb of Florence, Tuscany (Central Italy). The radiometer used was the UVB-501 (Solar Light CO., Philadelphia, USA) with spectral response close to the erythemal action spectrum, periodically compared with a reference instruments (of the same type as the operational one) calibrated during international inter-comparison campaigns. Continuous measurements of erythemally effective UV radiation (also converted in UV Index) and averaged over 15-min intervals were performed starting from 2004 and stored in a database. On the basis of these 14 years of data an UV Index climatology was obtained. During the last few decades, weather circulation type classifications (CTCs) have been widely used to gain insight into processes at the synoptic scale, but also for studying the relationship between atmospheric circulation and surface climate variability. As at LaMMA, were evaluate the best performing CTCs based on COST733 software for the stratification of daily ground-level precipitation and surface air temperature across Italy, in this study we have done a very preliminary investigation on possible relationships between UV and such CTCs; especially in certain periods of the year a relationship between specific weather circulation and UV was present.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
