USGS

Venus Mapping White Paper

Open-File Report 95-519

Table 3

Values of horizontal-polarization emissivity and corresponding dielectric constants of plane and rough surfaces at five incidence (emission) angles.

[Left-hand columns are smooth plane-surface estimates, right-hand columns are for rough surfaces. The rows that bracket the planetary mean value of 0.845 are shown in bold-face type]

Emis.
25o
30o
35o
40o
45o
0.50
28.09 34.09
25.73 34.21
23.13 34.43
20.35 34.80
17.49 35.39
0.51
26.56 32.21
24.34 32.33
21.88 32.53
19.26 32.85
16.56 33.38
0.52
25.13 30.46
23.03 30.56
20.71 30.74
18.24 31.03
15.69 31.50
0.53
23.79 28.82
21.81 28.91
19.62 29.07
17.28 29.32
14.87 29.74
0.54
22.53 27.28
20.66 27.36
18.59 27.49
16.38 27.72
14.11 28.09
0.55
21.35 25.83
19.58 25.90
17.62 26.02
15.54 26.22
13.39 26.54
0.56
20.23 24.47
18.56 24.53
16.71 24.63
14.74 24.81
12.71 25.08
0.57
19.18 23.18
17.60 23.24
15.86 23.33
13.99 23.48
12.07 23.71
0.58
18.20 21.97
16.70 22.02
15.05 22.10
13.29 22.23
11.47 22.43
0.59
17.27 20.84
15.85 20.87
14.29 20.94
12.62 21.05
10.90 21.21
0.60
16.39 19.76
15.05 19.79
13.57 19.85
11.99 19.93
10.37 20.07
0.61
15.56 18.74
14.29 18.77
12.89 18.81
11.40 18.88
9.86 18.99
0.62
14.77 17.78
13.58 17.80
12.25 17.84
10.84 17.89
9.39 17.98
0.63
14.03 16.87
12.90 16.89
11.64 16.91
10.31 16.96
8.93 17.02
0.64
13.33 16.01
12.26 16.02
11.07 16.04
9.81 16.07
8.51 16.11
0.65
12.66 15.20
11.65 15.20
10.53 15.21
9.33 15.23
8.10 15.25
0.66
12.03 14.43
11.07 14.43
10.01 14.43
8.88 14.43
7.71 14.44
0.67
11.43 13.69
10.52 13.69
9.52 13.69
8.45 13.68
7.35 13.66
0.68
10.86 13.00
10.00 12.99
9.05 12.98
8.04 12.97
7.00 12.93
0.69
10.32 12.34
9.51 12.33
8.61 12.31
7.66 12.29
6.67 12.24
0.70
9.80 11.71
9.04 11.70
8.19 11.68
7.29 11.64
6.36 11.58
0.71
9.31 11.11
8.59 11.10
7.79 11.07
6.94 11.03
6.06 10.96
0.72
8.85 10.54
8.17 10.52
7.41 10.50
6.61 10.45
5.78 10.37
0.73
8.40 10.00
7.76 9.98
7.05 9.95
6.29 9.90
5.51 9.81
0.74
7.98 9.48
7.37 9.46
6.70 9.43
5.99 9.37
5.25 9.27
0.75
7.58 8.99
7.01 8.97
6.37 8.93
5.70 8.87
5.01 8.76
0.76
7.19 8.52
6.65 8.49
6.06 8.46
5.42 8.39
4.77 8.28
0.77
6.82 8.07
6.32 8.04
5.76 8.00
5.16 7.93
4.55 7.81
0.78
6.47 7.64
6.00 7.61
5.47 7.57
4.91 7.50
4.33 7.37
0.79
6.14 7.23
5.69 7.20
5.20 7.16
4.67 7.08
4.13 6.95
0.80
5.81 6.84
5.40 6.81
4.93 6.76
4.44 6.68
3.93 6.55
0.81
5.51 6.46
5.11 6.43
4.68 6.39
4.22 6.31
3.74 6.17
0.82
5.21 6.10
4.84 6.07
4.44 6.03
4.01 5.94
3.56 5.81
0.83
4.93 5.76
4.59 5.73
4.21 5.68
3.81 5.60
3.39 5.46
0.84
4.66 5.43
4.34 5.40
3.99 5.35
3.61 5.26
3.23 5.13
0.85
4.39 5.11
4.10 5.08
3.77 5.03
3.43 4.95
3.07 4.81
0.86
4.14 4.80
3.87 4.77
3.57 4.73
3.25 4.64
2.92 4.50
0.87
3.90 4.51
3.65 4.48
3.37 4.43
3.07 4.35
2.77 4.21
0.88
3.67 4.23
3.44 4.20
3.18 4.15
2.91 4.07
2.63 3.93
0.89
3.44 3.95
3.23 3.93
3.00 3.88
2.75 3.80
2.49 3.66
0.90
3.23 3.69
3.03 3.66
2.82 3.61
2.59 3.54
2.36 3.41
0.91
3.02 3.43
2.84 3.41
2.65 3.36
2.44 3.28
2.23 3.16
0.92
2.81 3.18
2.65 3.16
2.48 3.12
2.30 3.04
2.10 2.92
0.93
2.61 2.94
2.47 2.92
2.32 2.88
2.15 2.80
1.98 2.69
0.94
2.42 2.70
2.29 2.68
2.16 2.64
2.01 2.57
1.86 2.47
0.95
2.22 2.47
2.12 2.45
2.00 2.41
1.88 2.35
1.75 2.25
0.96
2.03 2.24
1.94 2.22
1.84 2.19
1.74 2.13
1.63 2.04
0.97
1.84 2.00
1.77 1.99
1.69 1.96
1.60 1.91
1.51 1.83
0.98
1.64 1.76
1.58 1.75
1.52 1.72
1.46 1.68
1.39 1.61
0.99
1.41 1.49
1.38 1.48
1.34 1.46
1.29 1.43
1.25 1.38