a - Flux for day, night, or both were
unavailable.
Day-Night Longwave Flux Differences
[PC=Partly
cloudy, MC=Mostly cloudy, Ovcst=Overcast]
| Flux differences,
W/m^2, for bin- |
| 1 | 2 | 3 | 4 | 5 |
6 | 7 | 8 | 9 | 10 |
| At colatitude, deg. of- |
| Scene |
0 to 18 | 18 to 36 | 36 to 54 | 54 to 72 |
72 to 90 | 90 to 108 | 108 to 126 | 126 to
144 | 144 to 162 | 162 to 180 |
| Winter (Northern Hemisphere) |
| Ocean | (a ) |
(a ) | 8.30 | 1.71 | -0.53 |
-1.27 | 0.41 | 1.30 | 1.10 | (a ) |
| Land | (a ) | (
a ) | 19.88 | 28.73 | 35.88 | 21.27 |
42.81 | (a ) | (a ) | (a ) |
| Snow | (a ) |
7.25 | 7.40 | (a ) | (a ) |
(a ) | (a ) | (a ) | -11.73 |
(a ) |
| Desert | (a ) |
(a ) | (a ) | 39.61 | 42.71 |
(a ) | 58.20 | (a ) | (a
) | (a ) |
| PC over ocean | (a
) | 5.12 | 2.94 | 2.25 | -0.05 |
0.14 | 3.10 | 2.82 | 0.67 | (a ) |
| PC over land | (a ) |
(a ) | 18.46 | 29.23 | 18.02 |
9.76 | 25.17 | 23.11 | (a ) |
(a ) |
| MC over ocean | (a
) | 3.00 | 2.40 | -3.53 | -11.88 |
-10.93 | -1.99 | 2.69 | 1.68 | (a
) |
| MC over land | (a ) |
(a ) | 9.62 | 2.16 | 1.85 |
7.64 | 5.63 | 4.30 | (a ) |
(a ) |
| Ovcst over ocean |
(a ) | -2.69 | -1.39 | -4.98 |
-21.50 | -28.43 | -18.50 | -7.79 | -3.83 |
(a ) |
| Ovcst over land | (a ) |
(a ) | -3.02 | -11.11 | 7.53 |
11.91 | -1.42 | (a ) | (a ) |
(a ) |
| Spring (Northern Hemisphere) |
| Ocean | (a ) |
(a ) | 5.75 | -0.91 | -0.92 |
0.39 | 0.63 | 8.14 | (a ) |
(a ) |
| Land | (a ) |
28.83 | 40.77 | 40.76 | 36.83 | 19.16 |
27.23 | (a ) | (a ) |
(a ) |
| Snow | 4.10 | -1.69 |
(a ) | (a ) | (a ) |
(a ) | (a ) | (a ) | 6.00 |
(a ) |
| Desert | (a ) |
(a ) | 51.79 | 51.93 | (a ) |
(a ) | (a ) | (a ) | (a
) | (a ) |
| PC over ocean | (a
) | 1.30 | 3.24 | 2.22 | 1.17 |
1.52 | 2.19 | 2.72 | 2.37 | (a ) |
| PC over land |
(a ) | 18.57 | 27.67 | 39.01 |
12.74 | 2.85 | 8.76 | (a ) |
(a) | (a ) |
| MC over ocean |
(a ) | 2.57 | 2.18 | -5.51 |
-13.17 | -8.73 | -0.91 | 1.90 |
3.71 | (a ) |
| MC over land |
(a ) | 3.75 | 0.41 | 2.91 |
-1.63 | -11.25 | -12.71 | (a ) |
(a ) | (a ) |
| Ovcst over ocean | 1.72 |
-2.09 | -5.01 | -16.52 | -28.56 |
-19.95 | -9.70 | -4.38 | 0.46 |
(a ) |
| Ovcst over land |
(a ) | 3.73 | -0.80 | 3.37 |
7.04 | -15.04 | -41.67 | (a ) |
(a ) | (a ) |
| Summer (Northern Hemisphere) |
| Ocean | (a ) |
3.08 | 7.19 | 0.46 | -1.05 | 0.44 |
2.22 | 4.50 | (a ) | (a ) |
| Land | (a ) |
23.08 | 37.08 | 34.55 | 21.16 | 28.86 |
38.38 | (a ) | (a ) | (a ) |
| Snow | -2.82 |
(a ) | (a ) | (a ) |
(a ) | (a ) | (a ) |
(a ) | (a ) | (a ) |
| Desert | (a ) |
(a ) | 53.78 | 47.57 | 36.47 |
28.21 | 42.52 | (a ) | (a ) |
(a ) |
| PC over ocean | 10.43 |
2.52 | 8.22 | 2.93 | -0.42 | 1.41 |
2.02 | 2.46 | 5.06 | (a ) |
| PC over land | (a
) | 16.20 | 25.84 | 44.95 | 12.81 |
15.61 | 21.41 | (a ) | (a ) |
(a ) |
| MC over ocean | 9.18 |
6.03 | 8.60 | -2.05 | -11.18 |
-4.69 | -0.49 | 1.88 | 4.88 | (a ) |
| MC over land |
(a ) | 4.64 | 5.75 | 5.19 |
6.95 | 11.71 | 2.64 | (a ) |
(a ) | (a ) |
| Ovcst over ocean | 4.64 |
-2.97 | -7.26 | -24.13 | -22.74 |
-12.67 | -3.55 | -1.23 | -0.30 |
(a ) |
| Ovcst over land | (a
) | 1.59 | 0.40 | 9.04 | 13.42 |
13.83 | 27.61 | (a ) | (a ) |
(a ) |
| Fall (Northern Hemisphere) |
| Ocean | (a ) |
(a ) | 0.03 | (a ) |
0.90 | 1.22 | -0.50 | 3.98 | 4.18 |
(a ) |
| Land | (a ) |
21.38 | 32.57 | 26.04 | 28.40 | 36.18 |
45.23 | (a ) | (a ) | (a ) |
| Snow | 26.04 |
4.77 | 9.02 | (a ) | (a ) |
(a ) | (a ) | (a ) |
1.76 | 27.76 |
| Desert | (a ) |
(a ) | 45.31 | 42.55 | 42.96 |
(a ) | 60.04 | (a ) | (a ) |
(a ) |
| PC over ocean | 5.07 |
2.61 | 3.60 | 1.29 | -0.74 | 2.27 |
2.57 | 1.65 | 2.89 | (a ) |
| PC over land | (a
) | 11.98 | 23.25 | 35.88 | 13.57 |
17.54 | 27.58 | (a ) | (a ) |
(a ) |
| MC over ocean | 8.19 |
4.54 | 3.48 | -4.71 | -12.29 | -6.13 |
-1.08 | 1.83 | 3.69 | (a ) |
| MC over land | (a
) | 4.24 | 5.23 | 3.83 | 5.98 |
11.88 | 9.62 | 7.12 | (a ) |
(a ) |
| Ovcst over ocean | 7.48 |
1.75 | -3.67 | -13.76 | -28.55 |
-20.87 | -12.01 | -6.70 | -2.50 |
(a ) |
| Ovcst over land |
(a ) | 1.63 | -3.49 | -6.36 |
11.05 | 18.27 | -2.12 | (a ) |
(a ) | (a ) |