Aerosols Optical Properties and Their Effect on the UV Solar Irradiance at Uccle, Belgium
This study investigates the influences of aerosols optical properties on the UV solar irradiance reaching the ground. It does so using ground-based spectroradiometric measurements taken over the Uccle atmosphere during July 2006 to May 2010. Calculations with the radiative transfer code UVSPEC (LibRadtran package) are used in order to estimate the aerosol effect in the UV and the single scattering albedo. The results are compared with those from a collocated Cimel instrument, part of the AErosol RObotic NETwork (AERONET). The accuracy of the single scattering albedo estimation depends on the aerosol optical depth (AOD) and the solar zenith angle (SZA) at the time of the measurement and is higher for high AOD.
KeywordsAerosol Optical Depth Radiative Force Solar Zenith Angle Incoming Solar Radiation Single Scattering Albedo
The authors would like to thank the principal investigator of the AERONET site in Brussels, Christian Hermans, for providing the data and the LibRadtran team (www.libradtran.org) for providing the model algorithm.
- IPCC (2007) Intergovernmental panel on climate change: climate change 2007. Working group I report: the physical science basis. Summary for Policymakers, ParisGoogle Scholar