Month | Beta (tilt) | NRCan Interactive Maps (2007) | National Atlas of Canada (1984) | Korsun and Stranix (1984) | Modified Liu and Jordan (1963) | |||
---|---|---|---|---|---|---|---|---|
Real sky (MJ/m2/day) | Real sky (MJ/m2/day) | Clear sky (MJ/m2/day) | Clear sky (MJ/m2/day) | Real sky (MJ/m2/day) | ||||
B + D | B + D | Total | B + D | Total | ||||
April | Horizontal (0°) | 15 to 18 | 17 to 18 | 23.3 | 32.6 | 32.6 | 16.3 | 16.3 |
Vertical (90°) | 9 to 12 | 11 to 12 | 13.6 | 18.2 | 21.59 | 8.89 | 10.6 | |
June | Horizontal (0°) | 21 to 24 | 22 to 23 | 30.8 | 40.7 | 40.7 | 21.9 | 21.9 |
Vertical (90°) | 9 to 12 | 8 to 9 | 7.41 | 11.2 | 15.3 | 7.53 | 9.72 | |
October | Horizontal (0°) | 9 to 12 | 9 to 10 | 12.3 | 20.2 | 20.2 | 9.31 | 9.31 |
Vertical (90°) | 9 to 12 | 11 to 12 | 17.8 | 24.9 | 26.9 | 9.00 | 9.93 | |
December | Horizontal (0°) | 3 to 6 | 4 to 5 | 5.44 | 10.5 | 10.47 | 4.43 | 4.43 |
Vertical (90°) | 6 to 9 | 7 to 8 | 14.2 | 23.7 | 26.2 | 6.67 | 7.76 | |
Annual | Horizontal (0°) | 12 to 15 | 13 to 14 | 17.8 | 25.9 | 25.9 | 13.5 | 13.5 |
Vertical (90°) | 9 to 12 | 10 to 11 | 13.7 | 19.9 | 23.4 | 8.76 | 10.53 |