Estimation of Clear Sky Normal Irradiance over Northern Nigeria Atmosphere
Figure 2.
(a) shows Monthly mean clear sky beam (rad_mb) and diffused radiation (rad_md). (b) shows Monthly mean clear sky transmittances of water vapor (Tw), ozone (Toz), aerosols (Ta) and gas (Ta) in Kano for the period of 14 years(1983-1997).