Ja. Bordewijk et al., TOTAL SOLAR-RADIATION AND THE INFLUENCE OF CLOUDS AND AEROSOLS ON THEBIOLOGICALLY EFFECTIVE UV, Geophysical research letters, 22(16), 1995, pp. 2151-2154
Since clouds and aerosols contribute substantially to the attenuation
of biologically effective UV at ground level it is important to consid
er their role in studies on UV climatology on earth. We describe a met
hod to quantify this attenuation using spectral measurements of UV rad
iation at ground level and measurements of total solar radiation. The
analysis presented gives a very good indication for a non-linear relat
ion between the attenuation of biologically effective UV on the one ha
nd and total solar radiation on the other. An UV-climatology can be ca
lculated using the relations found.