Seasonal and diurnal variations in UV-B and UV-A irradiances at and below the sea surface at Helgoland (North Sea) over a 6-year period

Dring, M. J. ; Wagner, A. ; Franklin, Linda ; Kuhlenkamp, R. ; Luning, R. (2001). Seasonal and diurnal variations in UV-B and UV-A irradiances at and below the sea surface at Helgoland (North Sea) over a 6-year period . Helgoland Marine Research, 55 , 3-11.