A general algorithm to estimate atmospheric and environmental parameters from solar spectral irradiance was developed. Total ozone amounts retrieved from a high-quality series of global solar ultraviolet irradiance spectra show large correlation (rho=0.99) to the values measured by a MKIV Brewer spectrophotometer. The effective albedo also retrieved by the algorithm was compared to MODIS satellite estimates giving good agreement (correlation index rho=0.63). Moreover, the influence of snow cover on the UV irradiance at ground was assessed. Finally, a new extraterrestrial spectrum was tested and systematic differences between measured and modeled irradiance spectra are discussed.
Solar ultraviolet irradiance measurements in Aosta (Italy): An analysis of short- and middle-term spectral variability / Diemoz, Henri; Luca, Egli; Julian, Grobner; Siani, Anna Maria; Fabrizio, Diotri. - In: AIP CONFERENCE PROCEEDINGS. - ISSN 0094-243X. - ELETTRONICO. - 1531:(2013), pp. 856-859. (Intervento presentato al convegno RADIATION PROCESSES IN THE ATMOSPHERE AND OCEAN (IRS2012) tenutosi a Berlin, GERMANY nel 6–10 August 2012) [10.1063/1.4804905].
Solar ultraviolet irradiance measurements in Aosta (Italy): An analysis of short- and middle-term spectral variability
DIEMOZ, HENRI;SIANI, Anna Maria;
2013
Abstract
A general algorithm to estimate atmospheric and environmental parameters from solar spectral irradiance was developed. Total ozone amounts retrieved from a high-quality series of global solar ultraviolet irradiance spectra show large correlation (rho=0.99) to the values measured by a MKIV Brewer spectrophotometer. The effective albedo also retrieved by the algorithm was compared to MODIS satellite estimates giving good agreement (correlation index rho=0.63). Moreover, the influence of snow cover on the UV irradiance at ground was assessed. Finally, a new extraterrestrial spectrum was tested and systematic differences between measured and modeled irradiance spectra are discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.