Example of a results file
This is an annotated example of a results
file for the light regime.
ALP04A1.jpg <-- file name
days time Dhpot Dheff Dnpot Dneff Bhpot Bhtopo Bheff Bnpot Bneff tB azimut altitude
days: start and end day of the year (121-151 corresponds to May, 244-273 to September)
time: start and end time of the day
Dhpot: potential (unmasked) diffuse radiation on a horizontal surface
Dheff: effective (masked) diffuse radiation on a horizontal surface
Dnpot, Dneff: the same for an inclined surface
Bhpot, Bheff, Bnpot, Bneff: the same for direct (beam) radiation
tB: time of direct (beam) radiation in minutes (when at least half of the solar disk is visible)
azimut, altitude: average position of the sun (°) if above the horizon
121 151 00:00 01:00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
121 151 01:00 02:00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
121 151 02:00 03:00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
121 151 03:00 04:00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
121 151 04:00 05:00 8.2 0.9 8.2 0.9 0.0 0.0 0.0 0.0 0.0 0 60.4 2.8
121 151 05:00 06:00 63.3 7.1 63.3 7.1 3.6 3.6 0.0 3.6 0.0 0 69.0 10.4
121 151 06:00 07:00 121.8 13.7 121.8 13.7 41.9 41.9 0.6 41.9 0.6 11 79.3 20.2
121 151 07:00 08:00 168.3 18.9 168.3 18.9 131.1 131.1 12.1 131.1 12.1 121 89.9 30.3
121 151 08:00 09:00 201.6 22.7 201.6 22.7 244.3 244.3 9.4 244.3 9.4 38 101.7 40.5
121 151 09:00 10:00 222.9 25.1 222.9 25.1 352.9 352.9 5.4 352.9 5.4 22 116.1 50.1
121 151 10:00 11:00 234.8 26.4 234.8 26.4 436.2 436.2 11.9 436.2 11.9 12 135.5 58.4
121 151 11:00 12:00 239.9 27.0 239.9 27.0 481.3 481.3 4.7 481.3 4.7 12 162.4 63.7
121 151 12:00 13:00 240.0 27.0 240.0 27.0 481.6 481.6 188.5 481.6 188.5 743 194.0 64.0
(...)
244 273 13:00 14:00 209.5 23.6 209.5 23.6 280.6 280.6 20.4 280.6 20.4 88 205.0 37.4
244 273 14:00 15:00 191.6 21.6 191.6 21.6 205.4 205.4 30.1 205.4 30.1 213 221.9 31.8
244 273 15:00 16:00 161.3 18.1 161.3 18.1 114.2 114.2 0.0 114.2 0.0 0 236.5 24.1
244 273 16:00 17:00 116.2 13.1 116.2 13.1 36.6 36.6 0.0 36.6 0.0 0 249.2 15.0
244 273 17:00 18:00 55.6 6.3 55.6 6.3 3.0 3.0 0.0 3.0 0.0 0 260.7 5.2
244 273 18:00 19:00 4.9 0.5 4.9 0.5 0.0 0.0 0.0 0.0 0.0 0 266.3 0.1
244 273 19:00 20:00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
244 273 20:00 21:00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
244 273 21:00 22:00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
244 273 22:00 23:00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
244 273 23:00 24:00 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
here come the averages for the whole period (ending here day 273 = end of September)
121 273 00:00 24:00 100.8 11.3 100.8 11.3 130.7 130.7 14.3 130.7 14.3 7231 180.0 34.1
note that the duration of direct radiation (in minutes) is summed, not averaged
DLI 11.25% <-- diffuse light index (also called diffuse non-interceptance)
BLI 10.96% <-- beam (direct) light index
GLI 11.09% <-- global light index (also called gap light index)
note that these indexes are for the given period, here May to September