Estimation of Clear Sky Normal Irradiance over Northern Nigeria Atmosphere

Research Journal of Ecology and Environmental Sciences | Vol 1, Issue 2

Figure 5

(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 Minna for the period of 14 years(1983-1997).

Figure 5. (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 Minna for the period of 14 years(1983-1997).