Exercise 1 Spectral global Irradiance in W/m 2 /nm Spec1 Spec2 Calculate : 1)Total integrated UV irradiance 2)UVA irradiance 3)UVB irradiance 4)UV Index Calc.m Spec2: UV=17.0 W/m 2 UVA=16.8 W/m 2 UVB=0.16 W/m 2 UVIndex=0.95 (0.024 W/m 2 ) Spec1: UV=52.80 W/m 2 UVA=51.4 W/m 2 UVB=1.37 W/m 2 UVIndex=7.2 (0.179 W/m 2 ) % load the two spectra spec1=load('spec1.dat'); spec2=load('spec2.dat'); wl=spec1(:,1); spec=[spec1(:,2) spec2(:,2)]; figure;plot(wl,spec);grid xlabel('Wavelength /nm'); ylabel('Global irradiance /Wm^{-2}nm^{-1}'); legend('Spectrum1','Spectrum 2'); % Exercise 1: Calculate UV-weighted irradiance iuv=wl>=280 & wl=280 & wl315 & wl=280 & wl