Time Series of the Total Measured & Calculated Solar Flux
800
Measured Total Solar
Calculated Total Solar
700
600
500
400
300
200
100
0
267
268
269
270
271
272
273
274
275
276
277
Fractional DOY
Figure 2.1 Comparison of the measured and calculated total solar flux for a 10-day
period for Grayling I. Only the values of the solar flux when the zenith angle is less than
90 degrees are plotted.
Tim e Series of the Direct M easured & C alculated Solar Flux
800
M e a s u re d D ire c t S o la r
C a lc u la te d D irec t S o la r
Measured Total Solar
700
Calculated Total Solar
600
500
400
300
200
100
0
267
268
269
270
271
272
273
274
275
276
277
Fractional DOY
Figure 2.2 Same as Figure 2.1 but for the direct component of the solar flux.
8