Infrared solar spectrum observations taken on 12 January 1955, in Denver, Colorado, with a double-pass NaCl prism have been analyzed for transmission coefficients for the “selective” absorption and for the “continuum” extinction. The analysis was performed over the range 1.0–12.5 μ. The good ness of fit for the average transmission for a random band model and for a regular band model is given for each of 203 data points distributed throughout the spectrum.
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Wavelength Regions Scanned, Spectral Slit-Widths, and Number of Data Points for Data Reduction
Wavelength region (μ)
1.0–2.5
2.9–4.0
4.5–5.4
7.4–13.0
Physical slit-width (μ)
20
150
300
1700
Spectral slit-width in cm−1
26.2–27.2
96.2–52.0
68.8–37.1
71.5–18.6
Number of wavelength data points
51
32
29
91
Table II
Values of the Atmospheric Extinction Coefficients for Various Infrared Wavelengths and the Identification of the Absorbing Constituentsa
λ(μ)
−c1 mm−½
∑(Δy)2c1
−c2 mm−1
∑(Δy)2c3
C5m−1
∑(Δy)2c5
Atmospheric absorbers
1.018
2.39 × 10−2
6.33 × 10−4
3.05 × 10−2
3.94 × 10−3
4.90 × 10−2
4.59 × 10−4
H2O
1.082
3.97
3.66 × 10−3
5.30
1.53
7.57
3.39 × 10−3
H2O
1.094
3.36
1.31
4.43
1.73
6.60
1.42
H2O
1.098
3.19
2.83
4.27
5.58 × 10−4
6.26
2.95
H2O
1.101
3.82
2.09
5.04
2.03 × 10−3
7.35
1.98
H2O
1.128
3.00 × 10−1
6.45 × 10−1
3.86 × 10−2
9.31 × 10−2
2.80 × 10−1
4.89 × 10−2
H2O
1.131
2.72
2.19 × 10−3
3.52
7.34
2.69
3.13
H2O
1.137
2.83
1.29 × 10−4
3.63
9.89
2.76
4.74
H2O
1.144
2.15
2.53 × 10−3
2.79
5.64
2.44
1.27
H2O
1.147
2.34
1.58
3.05
6.90
2.56
2.22
H2O
1.178
6.05 × 10−2
4.66
7.99 × 10−3
3.83 × 10−3
1.08
3.87 × 10−3
H2O
1.189
4.90
6.70
6.56
1.04
9.00 × 10−2
6.42
H2O
1.193
5.32
5.25
7.06
2.32
9.66
4.87
H2O
1.222
3.54
4.06
4.65
1.12
6.81
4.37
CO2, H2O
1.236
2.53
4.20
3.36
1.10
5.04
4.76
H2O
1.264
1.13 × 10−1
7.22
1.45 × 10−2
1.43 × 10−2
1.68 × 10−1
2.19
O2
1.276
6.56 × 10−2
4.66
8.50 × 10−3
5.68 × 10−3
1.14
3.53
O2, H2O
1.288
3.17
5.70
4.20
1.35
6.15 × 10−2
6.24
H2O, O2
1.314
7.09
1.01 × 10−2
9.24
4.79
1.20 × 10−1
8.28
H2O
1.335
1.32 × 10−1
4.60 × 10−3
1.68 × 10−2
3.03 × 10−2
1.87
4.72
H2O
1.384
9.00
4.92
1.03 × 10−1
1.83 × 10−1
3.37
3.72 × 10−1
H2O
1.432
4.26
2.06
5.24 × 10−2
1.73
3.09
1.61
H2O, CO2
1.457
2.72
6.06
3.47
5.90 × 10−2
2.64
2.73 × 10−2
H2O
1.472
2.89
4.74 × 10−3
3.69
6.69 × 10−2
2.70
3.51
H2O
1.542
2.12 × 10−2
3.36
2.84 × 10−3
4.32 × 10−4
4.28 × 10−2
3.82 × 10−3
H2O, CO2
1.572
4.08
3.92
5.31
2.40 × 10−3
7.73
4.20
CO2
1.599
3.18
3.92
4.16
1.75
6.20
4.44
CO2
1.608
4.26
4.31
5.54
2.76
8.02
4.59
CO2
1.626
2.95
5.34
3.93
7.95 × 10−4
5.77
5.84
CH4
1.644
3.46
4.83
4.57
8.40
6.67
5.16
CO2, CH4
1.650
3.43
4.95
4.52
1.29 × 10−3
6.62
5.39
CO2, CH4
1.676
3.49
5.42
4.60
1.34
6.71
5.86
H2O, CH4
1.732
3.50
4.23
4.57
2.37
6.76
4.76
H2O, CH4
1.782
5.43
5.43
6.93
4.44
9.76
5.08
H2O, CH4
1.862
7.80 × 10−1
9.29
8.94 × 10−2
2.26 × 10−1
3.30 × 10−1
3.81 × 10−1
H2O
1.955
2.05
4.74 × 10−4
2.53
9.54 × 10−2
2.38
3.05 × 10−2
H2O, CO2
2.008
3.05
8.73 × 10−3
3.68
1.96 × 10−1
2.82
1.22 × 10−1
CO2, H2O
2.014
1.77
8.57 × 10−5
2.19
6.97 × 10−2
2.21
1.52 × 10−2
CO2, H2O
2.057
1.99
4.13 × 10−4
2.48
7.12
2.33
1.88
CO2, H2O
2.124
6.79 × 10−2
1.32 × 10−3
8.52 × 10−3
1.22
1.18
1.03 × 10−3
H2O, N2O
2.156
7.50
5.59 × 10−4
9.37
1.70
1.28
4.00 × 10−4
H2O, CH4
2.201
7.00
5.31 × 10−3
8.90
6.64 × 10−3
1.19
3.88 × 10−3
CH4, H2O
2.266
6.21
2.14 × 10−2
8.23
3.01 × 10−4
1.06
1.71 × 10−2
CH4, N2O, H2O
2.320
6.60
1.39
8.61
4.81
1.12
1.03
CH4, H2O
2.338
8.55
2.03
1.11 × 10−2
1.67 × 10−3
1.35
1.33
CH4, H2O
2.356
1.10 × 10−1
1.87
1.42
4.32
1.62
8.05 × 10−3
CH4, H2O
2.388
1.14
8.76 × 10−3
1.45
1.31 × 10−2
1.68
3.05
H2O, CH4
2.415
1.30
1.02 × 10−2
1.66
1.43
1.81
1.58
H2O, CH4
2.453
1.41
6.84 × 10−3
1.80
2.29
1.91
5.38 × 10−4
II2O
2.494
2.14
1.75 × 10−2
2.51
1.78 × 10−1
2.48
8.87 × 10−2
H2O
2.537
5.33
3.05 × 10−3
6.43
1.93
3.16
2.37 × 10−1
H2O
2.900
5.49 × 10−1
2.58 × 10−3
6.60 × 10−2
1.11 × 10−1
2.99 × 10−1
1.88 × 10−1
HOO, N2O
2.941
3.75
1.82 × 10−2
4.62
5.02 × 10−2
2.73
6.25 × 10−2
H2O
2.954
3.82
4.34 × 10−3
4.64
8.96
2.80
9.54
H2O, N2O
2.973
2.82
1.07 × 10−2
3.46
5.18
2.54
3.24
H2O
3.005
2.97
9.55 × 10−3
3.65
5.76 × 10−2
2.59
3.98
H2O
3.045
3.98
2.79
4.84
9.94
2.82
1.07 × 10−1
H2O
3.056
3.81
7.89
4.58
7.80
2.72
9.28 × 10−2
H2O
3.097
4.62
8.57
5.58
8.16
2.81
1.31 × 10−1
H2O
3.132
2.81
9.37
3.40
5.77
2.49
3.92 × 10−2
H2O, CH4
3.156
1.57
1.10 × 10−2
1.91
2.43
1.94
1.52 × 10−3
H2O, CH4
3.204
5.20
2.91 × 10−4
6.19
1.38 × 10−1
2.92
2.11 × 10−1
H2O, CH4
3.214
4.10
1.43 × 10−3
4.91
1.19
2.78
1.35
H2O, CH4
3.245
3.66
5.09
4.42
9.06 × 10−2
2.69
9.04 × 10−2
H2O, CH4
3.260
3.76
1.74
4.49
1.09 × 101
2.74
1.12 × 10−1
H2O, CH4
3.285
2.97
1.69 × 10−2
3.63
5.14 × 10−2
2.49
3.27 × 10−2
CH4
3.317
4.51
7.66 × 10−4
5.37
1.47 × 10−1
2.85
1.78 × 10−1
CH4, H2O
3.344
3.17
1.37 × 10−2
3.87
5.72 × 10−2
2.55
4.46 × 10−2
H2O, CH4
3.403
2.22 × 10−1
1.54
2.72 × 10−2
3.92
2.26 × 10−1
9.99 × 10−3
CH4, H2O
3.450
1.24
1.78
1.53
1.42
1.68
1.27
CH4, H2O
3.507
6.14 × 10−2
4.86 × 10−3
7.44 × 10−3
1.01
1.06
1.66
CH4, HDO
3.538
8.87
2.68
1.06 × 10−2
2.24
1.40
5.14 × 10−4
CH4, HDO, H2O
3.573
8.09
3.10 × 10−2
1.00
3.01
1.27
1.89 × 10−2
HDO, CH4, N2O
3.633
3.54
8.72 × 10−3
3.82 × 10−3
3.20 × 10−2
6.85 × 10−2
1.01
CH4, HDO
3.673
6.48
3.93
7.33
4.13
1.12 × 10−1
7.70 × 10−3
HDO, CH4
3.696
3.00
1.67 × 102
3.09
4.09
5.93 × 10−2
1.80 × 10−2
HDO, CH4
3.712
3.80
1.36
4.02
4.38
7.28
1.63
CH4, HDO
3.765
3.63
1.45
3.82
4.40
7.00
1.72
HDO, CH4
3.812
4.01
1.47
4.26
4.72
7.64
1.76
H2DO, CH4
3.888
1.50 × 10−1
2.94 × 10−3
1.73 × 10−2
8.52
1.93 × 10−1
2.50
NO
3.923
1.30
5.97
1.49
8.89
1.80
2.53
N2O, CH4
3.948
1.37
3.60 × 10−4
1.59
6.07
1.83
1.37
N2O, CH4
4.045
2.90
5.75 × 10−2
3.49
1.80 × 10−1
2.42
1.08 × 10−1
N2O
4.494
7.87 × 10−1
1.36 × 10−8
1.36 × 10−1
6.64 × 10−2
4.39 × 10−1
1.21 × 10−1
N2O, CO2
4.515
7.58
4.92
1.28
9.34
4.41
1.38
N2O, CO
4.656
6.99 × 10−2
2.41
1.25 × 10−2
1.47 × 10−3
1.27
2.60 × 10−3
N2O, H2O, CO
4.681
9.86
1.64
1.74
5.61
1.68
1.19
N2O, H2O, CO, O3
4.727
2.29 × 10−1
7.27 × 10−4
4.00
3.03 × 10−2
2.92
2.05
CO2, OO, H2O, CO
4.743
1.94
1.45
3.38
2.98
2.68
1.54
CO2, O3, CO, H2O
4.783
2.41
4.99
4.22
3.40
3.01
3.29
O3, H2O, CO2, CO
4.812
2.96 × 10−1
1.29
5.16 × 10−2
4.61
3.33 × 10−1
1.03 × 10−2
CO2, O3, H2O, CO
4.846
3.23
3.65
5.64
4.54
3.44
1.22
CO2, H2O, CO, O3
4.879
1.95
2.52 × 10−3
3.44
1.78 × 10−2
2.66
8.61 × 10−6
CO2, H2O, CO
4.893
2.51
2.23
4.42
2.62
3.05
1.56 × 10−3
CO2, H2O, CO
4.918
8.70 × 10−2
1.97
1.54
3.61 × 10−3
1.52
1.77
CO2, H2O, CO
4.955
2.54 × 10−1
4.05 × 10−5
4.40
4.83 × 10−2
3.12
8.59
H2O, CO2
4.979
1.75
2.32 × 10−3
3.08
1.53
2.49
4.43 × 10−5
H2O, CO2
4.991
1.19
3.47
2.11
5.39 × 10−3
1.92
2.00 × 10−3
H2O, CO2
5.019
3.74
1.80 × 10−4
6.46
6.59 × 10−2
3.67
2.96 × 10−2
H2O
5.055
1.27
3.69 × 10−3
2.22
6.42 × 10−3
2.01
1.74 × 10−3
H2O, CO2
5.113
3.36
1.12
5.79
4.17 × 10−2
3.46
1.18 × 10−2
H2O, CO2
5.131
3.35
3.44
5.82
3.15
3.43
7.19 × 10−3
H2O, CO2
5.142
5.94
2.01 × 10−4
1.01 × 10−1
6.98
4.11
7.95 × 10−2
H2O, CO2
5.183
3.78
1.19 × 10−2
6.63 × 10−2
1.70
3.51
4.02 × 10−3
H2O, CO2
5.208
7.48
2.27 × 10−3
1.25 × 10−1
8.14
4.31
1.31 × 10−1
H2O, CO2
5.236
9.53
1.21 × 10−4
1.64
3.21
4.32
1.23
CO2, H2O
5.257
7.21
2.59 × 10−2
1.28
3.16 × 10−3
3.98
2.80 × 10−2
H2O, CO2
5.282
9.57
5.93 × 10−6
1.64
3.56 × 10−2
4.34
1.29 × 10−1
H2O, CO2
5.304
5.94
5.03 × 10−3
1.04
2.82
4.00
4.28 × 10−2
H2O, CO2
5.335
9.74
1.90 × 10−4
1.65
4.13 × 10−2
4.37
1.43 × 10−1
H2O
5.382
6.63
1.34
1.13
6.32
4.19
9.38 × 10−2
H2O
5.436
1.02 × 100
1.12 × 10−3
1.68
5.00
4.41
1.62 × 10−1
H2O
7.407
1.07 × 100
5.69 × 10−5
1.75 × 10−1
4.26 × 10−3
4.18 × 10−1
2.18 × 10−1
CH4, H2O, HDO
7.442
7.59 × 10−1
1.53 × 10−2
1.28
1.16 × 10−4
3.97
1.06
H2O, CH4
7.468
8.06
6.18 × 10−3
1.35
8.58 × 10−4
4.04
1.40
H2O, CH4
7.535
4.57
4.35 × 10−2
7.77 × 10−2
2.11 × 10−3
3.61
2.18 × 10−2
H2O, CH4
7.593
8.82
7.01 × 10−3
1.48 × 10−1
1.03 × 10−4
4.05
1.45 × 10−1
H2O, CH4, N2O
7.628
7.17
8.53
1.20
9.94
3.99
1.19
N2O, H2O, CH4
7.663
9.70
5.24
1.63
6.23 × 10−5
4.08
1.60
CH4, N2O, H2O
7.710
6.87
2.56 × 10−2
1.17
1.22 × 10−3
3.89
7.64 × 10−2
CH4, N2O, H2O
7.784
5.99
3.18
1.02
1.41
3.81
5.50
CH4, N2O, H2O
7.829
5.32
2.63
9.00 × 10−2
7.19 × 10−5
3.76
5.05
N2O, CH4, H2O
7.874
7.08
5.24 × 10−3
1.18 × 10−1
3.02 × 10−3
4.01
1.31 × 10−1
N2O, CH4, H2O
7.924
5.89
4.44
9.76 × 10−2
7.16
3.94
1.12
CH4, N2O, H2O
7.994
2.14
1.68 × 10−2
3.58
1.18
2.84
2.80 × 10−3
CH4, N2O, H2O
8.037
2.42
9.95 × 10−3
4.03
5.23
3.03
1.12 × 10−2
CH4, N2O, H2O
8.108
1.40
1.22 × 10−4
2.25
2.30 × 10−2
2.28
1.57
CH4, N2O, H2O
8.163
2.56
1.11 × 10−4
4.12
3.72 × 10−2
3.18
5.05
CH4, H2O, HDO
8.221
2.48
1.75
3.99
3.78
3.14
4.89
CH4, H2O, HDO
8.258
2.52
1.46 × 10−3
3.95
5.18
3.15
6.33
H2O, CH4, N2O
8.307
1.71
9.76
2.63
7.00
2.60
5.88
N2O, CH4, H2O
8.347
1.87
7.73
2.88
6.78
2.73
6.04
N2O, CH4, H2O
8.390
1.67
7.52
2.57
6.23
2.55
5.13
N2O, CH4, H2O
8.426
1.90
3.87
2.95
5.49
2.74
4.95
N2O, CH4, H2O
8.467
1.51
4.41
2.34
4.86
2.40
3.64
N2O, CH4, H2O
8.518
1.80 × 10−1
2.29
2.82 × 10−2
4.66
2.66 × 10−1
3.95 × 10−2
N2O, H2O, CH4
8.556
1.23
5.47
1.90
4.42
2.10
2.99
N2O, H2O, CH4, O3
8.584
1.29
3.32
2.00
3.90
2.17
2.62
N2O, H2O, O3
8.629
9.72 × 10−2
4.84
1.50
3.44
1.77
2.10
N2O, O3
8.693
1.22 × 10−1
1.07
1.91
2.79
2.08
1.70
N2O, O3, H2O
8.755
7.05 × 10−2
5.16
1.08
2.64
1.38
1.53
N2O, O3, H2O
8.803
1.11 × 10−1
1.56
1.73
2.74
1.95
1.61
N2O, O3, H2O
8.878
4.67 × 10−2
7.21
6.94 × 10−3
2.22
9.67 × 10−2
1.37
O3, N2O, H2O
8.921
6.39
3.70
9.78
2.09
1.27 × 10−1
1.15
O3, H2O
8.960
3.79
4.62
5.66
1.47
8.05 × 10−2
8.72 × 10−3
O3, H2O
9.014
4.10
2.94
6.23
1.24
8.68
6.74
O3, H2O
9.039
3.92
2.58
5.95
1.12
8.34
5.97
O3, H2O
9.060
3.28
1.75 × 10−3
4.98
7.84 × 10−3
7.09
4.02
O3, H2O
9.080
3.75
4.61 × 10−4
5.84
5.55
8.05
2.18
O3, H2O
9.128
1.56
2.12 × 10−3
2.25
4.76
3.48
3.09
O3, H2O
9.166
2.85
2.22 × 10−4
4.38
3.27
6.28
1.11
O3, CO2, H2O
9.256
3.96
2.52 × 10−5
6.21
2.69
8.48
4.71 × 10−4
O3, CO2, H2O
9.308
2.91
6.54 × 10−3
4.14
1.52 × 10−2
6.27
9.92 × 10−3
O3, CO2, H2O
9.330
2.77
7.52
3.89
1.61
5.97
1.09 × 10−2
O3, CO2, H2O
9.518
8.31 × 10−1
4.54
1.34 × 10−1
2.36 × 10−3
3.97 × 10−1
1.60 × 10−1
O3, CO2, H2O
9.585
2.24
2.90 × 10−4
3.51 × 10−2
2.79 × 10−2
2.94
3.03 × 10−2
O3, CO2, H2O
9.628
5.76
4.98
9.08
2.27
3.89
1.44 × 10−1
O3, CO2, H2O
9.718
5.01
8.04 × 10−3
8.05
7.94 × 10−3
3.74
8.26 × 10−2
O3, H2O, CO2
9.816
3.60 × 10−1
2.14 × 10−4
5.66 × 10−2
3.45 × 10−2
3.53 × 10−1
7.91 × 10−2
O3, H2O
9.882
2.13
2.21 × 10−2
3.15
1.16 × 10−1
2.91
1.09 × 10−1
O3, H2O
9.984
4.75 × 10−2
3.36 × 10−4
7.38 × 10−3
2.46 × 10−3
9.90 × 10−2
2.18 × 10−4
O3, H2O
10.058
1.13
1.35
1.68
8.75 × 10−4
2.61
3.38
O3, H2O
10.163
1.72 × 10−5
1.73 × 10−9
2.47 × 10−6
4.80 × 10−9
4.06 × 10−5
2.61 × 10−9
O3, C2O, H2O
10.232
7.48 × 10−3
8.36 × 10−5
1.19 × 10−3
9.97 × 10−6
1.78 × 10−2
2.27 × 10−5
CO2, H2O, O3
10.334
1.72 × 10−5
1.73 × 10−9
2.47 × 10−6
4.80 × 10−9
4.06 × 10−5
2.61 × 10−9
CO2, H2O
10.367
1.72
1.73 × 10−9
2.47
4.80 × 10−9
4.06
2.61
CO2, H2O
10.470
1.72
1.73
2.47
4.80
4.06
2.61
CO2, H2O
10.533
6.57 × 10−3
3.68 × 10−5
9.82 × 10−4
2.77 × 10−4
1.54 × 10−2
9.73 × 10−5
CO2, H2O
10.622
1.72 × 10−5
1.73 × 10−9
2.47 × 10−8
4.80 × 10−9
4.06 × 10−5
2.61 × 10−9
CO2, H2O
10.831
8.67 × 10−4
1.66 × 10−4
7.71 × 10−5
1.97 × 10−1
1.80 × 10−3
1.78 × 10−4
CO2, H2O
10.872
1.70 × 10−5
1.80 × 10−9
2.39 × 10−8
4.93 × 10−9
4.00 × 10−5
2.68 × 10−9
CO2, H2O
10.985
3.90 × 10−3
7.71 × 10−4
4.71 × 10−4
1.13 × 10−3
8.68 × 10−3
8.94 × 10−4
H2O, CO2
11.082
1.70 × 10−5
1.80 × 10−9
2.39 × 10−6
4.95 × 10−9
4.00 × 10−5
2.68 × 10−9
H2O
11.152
9.02 × 10−4
1.80 × 10−4
8.00 × 10−5
2.14 × 10−4
1.87 × 10−3
1.93 × 10−4
H2O
11.254
2.50 × 10−2
2.30
3.70 × 10−3
2.93 × 10−3
5.54 × 10−2
9.62
H2O
11.275
5.29 × 10−3
2.22 × 10−3
5.95 × 10−4
3.01
1.14
2.50 × 10−3
H2O
11.297
5.01
4.11 × 10−4
8.43
1.33 × 10−4
1.22
3.02 × 10−4
H2O
11.335
1.84
7.46
1.62
8.86
3.78 × 10−3
7.99
H2O
11.366
1.11 × 10−2
1.34 × 10−3
1.51 × 10−3
2.93 × 10−3
2.51 × 10−2
1.86 × 10−3
H2O
11.408
1.42 × 10−3
4.45 × 10−4
1.25 × 10−4
5.28 × 10−4
2.92 × 10−3
4.76 × 10−4
H2O
11.457
1.19 × 10−2
1.16 × 10−3
1.61 × 10−3
2.82 × 10−3
2.67 × 10−2
1.68 × 10−3
H2O
11.498
1.52 × 10−4
4.69 × 10−6
1.38 × 10−5
5.65 × 10−6
3.22 × 10−4
5.04 × 10−6
H2O
11.538
7.82 × 10−3
3.06 × 10−4
1.09 × 10−3
9.20 × 10−4
1.80 × 10−2
4.84 × 10−4
H2O
11.582
3.32 × 10−4
2.46 × 10−5
2.90 × 10−5
2.93 × 10−5
6.94 × 10−4
2.63 × 10−5
H2O
11.627
1.66
5.70 × 10−6
1.50
6.86 × 10−6
3.52
6.11 × 10−6
H2O
11.712
5.37 × 10−2
8.94 × 10−4
8.12 × 10−3
2.36 × 10−3
1.09 × 10−1
7.13 × 10−8
H2O
11.731
1.71
1.88
2.48
1.73
3.88 × 10−2
5.81 × 10−4
H2O
11.751
1.68
1.94
2.43
1.70
3.80
5.80
H2O
11.805
1.68 × 10−5
1.89 × 10−9
2.31 × 10−6
5.09 × 10−9
3.95 × 10−5
2.75 × 10−9
H2O
11.886
1.45 × 10−2
5.94 × 10−4
2.05 × 10−3
2.30 × 10−3
3.29 × 10−2
1.09 × 10−3
H2O
11.951
1.68 × 10−5
1.89 × 10−9
2.31 × 10−6
5.09 × 10−9
3.95 × 10−5
2.75 × 10−9
H2O
12.063
2.11 × 10−2
2.98 × 10−5
3.11 × 10−3
1.56 × 10−3
4.74 × 10−2
3.45 × 10−4
H2O, CO2
12.084
7.55 × 10−3
7.45 × 10−4
9.89 × 10−4
1.58
1.72
9.97
H2O
12.106
5.53
2.56 × 10−3
5.98
3.48
1.20
2.87 × 10−3
H2O
12.142
9.08 × 10−4
2.04 × 10−4
7.52 × 10−5
2.42 × 10−4
1.88 × 10−3
2.18 × 10−4
H2O, CO2
12.261
5.04 × 10−2
5.69 × 10−5
7.32 × 10−3
7.00 × 10−3
1.03 × 10−1
1.86 × 10−3
H2O
12.307
4.90 × 10−3
5.05 × 10−3
4.20 × 10−4
6.05
9.94 × 10−3
5.42
CO2
12.353
5.03 × 10−2
6.11 × 10−6
7.36 × 10−3
5.40
1.03 × 10−1
1.09
H2O, CO2
12.384
2.02
1.52 × 10−3
2.77
5.16
4.49 × 10−2
2.64
CO2
12.428
8.40
4.52 × 10−6
1.22 × 10−2
1.37 × 10−2
1.56 × 10−1
4.59
H2O, CO2
12.465
3.45
8.16 × 10−4
4.90 × 10−3
6.89 × 10−3
7.40 × 10−2
2.64
H2O, CO2
12.502
2.06 × 10−1
7.91 × 10−3
3.09 × 10−2
1.10 × 10−2
2.68 × 10−1
9.61
H2O, CO2
12.542
1.82
9.11
2.73
7.68 × 10−3
2.52
4.61
H2O, CO2
The extinction coefficients are defined for the following absorption laws: strong random band model In
= −c1w½, weak random band model In
= −(c3w − c4w2), and strong regular band model
= 1 − c5m1/2. The goodness of fit of the various models is given in terms of the surn of the squares of the deviation of the transmission from the straight line fit, ∑(Δy)2. w is precipitable water vapor along the path in mm; m, which is dimensionless, is proportional to the quantity of absorbing material and is defined in the text.
Tables (2)
Table I
Wavelength Regions Scanned, Spectral Slit-Widths, and Number of Data Points for Data Reduction
Wavelength region (μ)
1.0–2.5
2.9–4.0
4.5–5.4
7.4–13.0
Physical slit-width (μ)
20
150
300
1700
Spectral slit-width in cm−1
26.2–27.2
96.2–52.0
68.8–37.1
71.5–18.6
Number of wavelength data points
51
32
29
91
Table II
Values of the Atmospheric Extinction Coefficients for Various Infrared Wavelengths and the Identification of the Absorbing Constituentsa
λ(μ)
−c1 mm−½
∑(Δy)2c1
−c2 mm−1
∑(Δy)2c3
C5m−1
∑(Δy)2c5
Atmospheric absorbers
1.018
2.39 × 10−2
6.33 × 10−4
3.05 × 10−2
3.94 × 10−3
4.90 × 10−2
4.59 × 10−4
H2O
1.082
3.97
3.66 × 10−3
5.30
1.53
7.57
3.39 × 10−3
H2O
1.094
3.36
1.31
4.43
1.73
6.60
1.42
H2O
1.098
3.19
2.83
4.27
5.58 × 10−4
6.26
2.95
H2O
1.101
3.82
2.09
5.04
2.03 × 10−3
7.35
1.98
H2O
1.128
3.00 × 10−1
6.45 × 10−1
3.86 × 10−2
9.31 × 10−2
2.80 × 10−1
4.89 × 10−2
H2O
1.131
2.72
2.19 × 10−3
3.52
7.34
2.69
3.13
H2O
1.137
2.83
1.29 × 10−4
3.63
9.89
2.76
4.74
H2O
1.144
2.15
2.53 × 10−3
2.79
5.64
2.44
1.27
H2O
1.147
2.34
1.58
3.05
6.90
2.56
2.22
H2O
1.178
6.05 × 10−2
4.66
7.99 × 10−3
3.83 × 10−3
1.08
3.87 × 10−3
H2O
1.189
4.90
6.70
6.56
1.04
9.00 × 10−2
6.42
H2O
1.193
5.32
5.25
7.06
2.32
9.66
4.87
H2O
1.222
3.54
4.06
4.65
1.12
6.81
4.37
CO2, H2O
1.236
2.53
4.20
3.36
1.10
5.04
4.76
H2O
1.264
1.13 × 10−1
7.22
1.45 × 10−2
1.43 × 10−2
1.68 × 10−1
2.19
O2
1.276
6.56 × 10−2
4.66
8.50 × 10−3
5.68 × 10−3
1.14
3.53
O2, H2O
1.288
3.17
5.70
4.20
1.35
6.15 × 10−2
6.24
H2O, O2
1.314
7.09
1.01 × 10−2
9.24
4.79
1.20 × 10−1
8.28
H2O
1.335
1.32 × 10−1
4.60 × 10−3
1.68 × 10−2
3.03 × 10−2
1.87
4.72
H2O
1.384
9.00
4.92
1.03 × 10−1
1.83 × 10−1
3.37
3.72 × 10−1
H2O
1.432
4.26
2.06
5.24 × 10−2
1.73
3.09
1.61
H2O, CO2
1.457
2.72
6.06
3.47
5.90 × 10−2
2.64
2.73 × 10−2
H2O
1.472
2.89
4.74 × 10−3
3.69
6.69 × 10−2
2.70
3.51
H2O
1.542
2.12 × 10−2
3.36
2.84 × 10−3
4.32 × 10−4
4.28 × 10−2
3.82 × 10−3
H2O, CO2
1.572
4.08
3.92
5.31
2.40 × 10−3
7.73
4.20
CO2
1.599
3.18
3.92
4.16
1.75
6.20
4.44
CO2
1.608
4.26
4.31
5.54
2.76
8.02
4.59
CO2
1.626
2.95
5.34
3.93
7.95 × 10−4
5.77
5.84
CH4
1.644
3.46
4.83
4.57
8.40
6.67
5.16
CO2, CH4
1.650
3.43
4.95
4.52
1.29 × 10−3
6.62
5.39
CO2, CH4
1.676
3.49
5.42
4.60
1.34
6.71
5.86
H2O, CH4
1.732
3.50
4.23
4.57
2.37
6.76
4.76
H2O, CH4
1.782
5.43
5.43
6.93
4.44
9.76
5.08
H2O, CH4
1.862
7.80 × 10−1
9.29
8.94 × 10−2
2.26 × 10−1
3.30 × 10−1
3.81 × 10−1
H2O
1.955
2.05
4.74 × 10−4
2.53
9.54 × 10−2
2.38
3.05 × 10−2
H2O, CO2
2.008
3.05
8.73 × 10−3
3.68
1.96 × 10−1
2.82
1.22 × 10−1
CO2, H2O
2.014
1.77
8.57 × 10−5
2.19
6.97 × 10−2
2.21
1.52 × 10−2
CO2, H2O
2.057
1.99
4.13 × 10−4
2.48
7.12
2.33
1.88
CO2, H2O
2.124
6.79 × 10−2
1.32 × 10−3
8.52 × 10−3
1.22
1.18
1.03 × 10−3
H2O, N2O
2.156
7.50
5.59 × 10−4
9.37
1.70
1.28
4.00 × 10−4
H2O, CH4
2.201
7.00
5.31 × 10−3
8.90
6.64 × 10−3
1.19
3.88 × 10−3
CH4, H2O
2.266
6.21
2.14 × 10−2
8.23
3.01 × 10−4
1.06
1.71 × 10−2
CH4, N2O, H2O
2.320
6.60
1.39
8.61
4.81
1.12
1.03
CH4, H2O
2.338
8.55
2.03
1.11 × 10−2
1.67 × 10−3
1.35
1.33
CH4, H2O
2.356
1.10 × 10−1
1.87
1.42
4.32
1.62
8.05 × 10−3
CH4, H2O
2.388
1.14
8.76 × 10−3
1.45
1.31 × 10−2
1.68
3.05
H2O, CH4
2.415
1.30
1.02 × 10−2
1.66
1.43
1.81
1.58
H2O, CH4
2.453
1.41
6.84 × 10−3
1.80
2.29
1.91
5.38 × 10−4
II2O
2.494
2.14
1.75 × 10−2
2.51
1.78 × 10−1
2.48
8.87 × 10−2
H2O
2.537
5.33
3.05 × 10−3
6.43
1.93
3.16
2.37 × 10−1
H2O
2.900
5.49 × 10−1
2.58 × 10−3
6.60 × 10−2
1.11 × 10−1
2.99 × 10−1
1.88 × 10−1
HOO, N2O
2.941
3.75
1.82 × 10−2
4.62
5.02 × 10−2
2.73
6.25 × 10−2
H2O
2.954
3.82
4.34 × 10−3
4.64
8.96
2.80
9.54
H2O, N2O
2.973
2.82
1.07 × 10−2
3.46
5.18
2.54
3.24
H2O
3.005
2.97
9.55 × 10−3
3.65
5.76 × 10−2
2.59
3.98
H2O
3.045
3.98
2.79
4.84
9.94
2.82
1.07 × 10−1
H2O
3.056
3.81
7.89
4.58
7.80
2.72
9.28 × 10−2
H2O
3.097
4.62
8.57
5.58
8.16
2.81
1.31 × 10−1
H2O
3.132
2.81
9.37
3.40
5.77
2.49
3.92 × 10−2
H2O, CH4
3.156
1.57
1.10 × 10−2
1.91
2.43
1.94
1.52 × 10−3
H2O, CH4
3.204
5.20
2.91 × 10−4
6.19
1.38 × 10−1
2.92
2.11 × 10−1
H2O, CH4
3.214
4.10
1.43 × 10−3
4.91
1.19
2.78
1.35
H2O, CH4
3.245
3.66
5.09
4.42
9.06 × 10−2
2.69
9.04 × 10−2
H2O, CH4
3.260
3.76
1.74
4.49
1.09 × 101
2.74
1.12 × 10−1
H2O, CH4
3.285
2.97
1.69 × 10−2
3.63
5.14 × 10−2
2.49
3.27 × 10−2
CH4
3.317
4.51
7.66 × 10−4
5.37
1.47 × 10−1
2.85
1.78 × 10−1
CH4, H2O
3.344
3.17
1.37 × 10−2
3.87
5.72 × 10−2
2.55
4.46 × 10−2
H2O, CH4
3.403
2.22 × 10−1
1.54
2.72 × 10−2
3.92
2.26 × 10−1
9.99 × 10−3
CH4, H2O
3.450
1.24
1.78
1.53
1.42
1.68
1.27
CH4, H2O
3.507
6.14 × 10−2
4.86 × 10−3
7.44 × 10−3
1.01
1.06
1.66
CH4, HDO
3.538
8.87
2.68
1.06 × 10−2
2.24
1.40
5.14 × 10−4
CH4, HDO, H2O
3.573
8.09
3.10 × 10−2
1.00
3.01
1.27
1.89 × 10−2
HDO, CH4, N2O
3.633
3.54
8.72 × 10−3
3.82 × 10−3
3.20 × 10−2
6.85 × 10−2
1.01
CH4, HDO
3.673
6.48
3.93
7.33
4.13
1.12 × 10−1
7.70 × 10−3
HDO, CH4
3.696
3.00
1.67 × 102
3.09
4.09
5.93 × 10−2
1.80 × 10−2
HDO, CH4
3.712
3.80
1.36
4.02
4.38
7.28
1.63
CH4, HDO
3.765
3.63
1.45
3.82
4.40
7.00
1.72
HDO, CH4
3.812
4.01
1.47
4.26
4.72
7.64
1.76
H2DO, CH4
3.888
1.50 × 10−1
2.94 × 10−3
1.73 × 10−2
8.52
1.93 × 10−1
2.50
NO
3.923
1.30
5.97
1.49
8.89
1.80
2.53
N2O, CH4
3.948
1.37
3.60 × 10−4
1.59
6.07
1.83
1.37
N2O, CH4
4.045
2.90
5.75 × 10−2
3.49
1.80 × 10−1
2.42
1.08 × 10−1
N2O
4.494
7.87 × 10−1
1.36 × 10−8
1.36 × 10−1
6.64 × 10−2
4.39 × 10−1
1.21 × 10−1
N2O, CO2
4.515
7.58
4.92
1.28
9.34
4.41
1.38
N2O, CO
4.656
6.99 × 10−2
2.41
1.25 × 10−2
1.47 × 10−3
1.27
2.60 × 10−3
N2O, H2O, CO
4.681
9.86
1.64
1.74
5.61
1.68
1.19
N2O, H2O, CO, O3
4.727
2.29 × 10−1
7.27 × 10−4
4.00
3.03 × 10−2
2.92
2.05
CO2, OO, H2O, CO
4.743
1.94
1.45
3.38
2.98
2.68
1.54
CO2, O3, CO, H2O
4.783
2.41
4.99
4.22
3.40
3.01
3.29
O3, H2O, CO2, CO
4.812
2.96 × 10−1
1.29
5.16 × 10−2
4.61
3.33 × 10−1
1.03 × 10−2
CO2, O3, H2O, CO
4.846
3.23
3.65
5.64
4.54
3.44
1.22
CO2, H2O, CO, O3
4.879
1.95
2.52 × 10−3
3.44
1.78 × 10−2
2.66
8.61 × 10−6
CO2, H2O, CO
4.893
2.51
2.23
4.42
2.62
3.05
1.56 × 10−3
CO2, H2O, CO
4.918
8.70 × 10−2
1.97
1.54
3.61 × 10−3
1.52
1.77
CO2, H2O, CO
4.955
2.54 × 10−1
4.05 × 10−5
4.40
4.83 × 10−2
3.12
8.59
H2O, CO2
4.979
1.75
2.32 × 10−3
3.08
1.53
2.49
4.43 × 10−5
H2O, CO2
4.991
1.19
3.47
2.11
5.39 × 10−3
1.92
2.00 × 10−3
H2O, CO2
5.019
3.74
1.80 × 10−4
6.46
6.59 × 10−2
3.67
2.96 × 10−2
H2O
5.055
1.27
3.69 × 10−3
2.22
6.42 × 10−3
2.01
1.74 × 10−3
H2O, CO2
5.113
3.36
1.12
5.79
4.17 × 10−2
3.46
1.18 × 10−2
H2O, CO2
5.131
3.35
3.44
5.82
3.15
3.43
7.19 × 10−3
H2O, CO2
5.142
5.94
2.01 × 10−4
1.01 × 10−1
6.98
4.11
7.95 × 10−2
H2O, CO2
5.183
3.78
1.19 × 10−2
6.63 × 10−2
1.70
3.51
4.02 × 10−3
H2O, CO2
5.208
7.48
2.27 × 10−3
1.25 × 10−1
8.14
4.31
1.31 × 10−1
H2O, CO2
5.236
9.53
1.21 × 10−4
1.64
3.21
4.32
1.23
CO2, H2O
5.257
7.21
2.59 × 10−2
1.28
3.16 × 10−3
3.98
2.80 × 10−2
H2O, CO2
5.282
9.57
5.93 × 10−6
1.64
3.56 × 10−2
4.34
1.29 × 10−1
H2O, CO2
5.304
5.94
5.03 × 10−3
1.04
2.82
4.00
4.28 × 10−2
H2O, CO2
5.335
9.74
1.90 × 10−4
1.65
4.13 × 10−2
4.37
1.43 × 10−1
H2O
5.382
6.63
1.34
1.13
6.32
4.19
9.38 × 10−2
H2O
5.436
1.02 × 100
1.12 × 10−3
1.68
5.00
4.41
1.62 × 10−1
H2O
7.407
1.07 × 100
5.69 × 10−5
1.75 × 10−1
4.26 × 10−3
4.18 × 10−1
2.18 × 10−1
CH4, H2O, HDO
7.442
7.59 × 10−1
1.53 × 10−2
1.28
1.16 × 10−4
3.97
1.06
H2O, CH4
7.468
8.06
6.18 × 10−3
1.35
8.58 × 10−4
4.04
1.40
H2O, CH4
7.535
4.57
4.35 × 10−2
7.77 × 10−2
2.11 × 10−3
3.61
2.18 × 10−2
H2O, CH4
7.593
8.82
7.01 × 10−3
1.48 × 10−1
1.03 × 10−4
4.05
1.45 × 10−1
H2O, CH4, N2O
7.628
7.17
8.53
1.20
9.94
3.99
1.19
N2O, H2O, CH4
7.663
9.70
5.24
1.63
6.23 × 10−5
4.08
1.60
CH4, N2O, H2O
7.710
6.87
2.56 × 10−2
1.17
1.22 × 10−3
3.89
7.64 × 10−2
CH4, N2O, H2O
7.784
5.99
3.18
1.02
1.41
3.81
5.50
CH4, N2O, H2O
7.829
5.32
2.63
9.00 × 10−2
7.19 × 10−5
3.76
5.05
N2O, CH4, H2O
7.874
7.08
5.24 × 10−3
1.18 × 10−1
3.02 × 10−3
4.01
1.31 × 10−1
N2O, CH4, H2O
7.924
5.89
4.44
9.76 × 10−2
7.16
3.94
1.12
CH4, N2O, H2O
7.994
2.14
1.68 × 10−2
3.58
1.18
2.84
2.80 × 10−3
CH4, N2O, H2O
8.037
2.42
9.95 × 10−3
4.03
5.23
3.03
1.12 × 10−2
CH4, N2O, H2O
8.108
1.40
1.22 × 10−4
2.25
2.30 × 10−2
2.28
1.57
CH4, N2O, H2O
8.163
2.56
1.11 × 10−4
4.12
3.72 × 10−2
3.18
5.05
CH4, H2O, HDO
8.221
2.48
1.75
3.99
3.78
3.14
4.89
CH4, H2O, HDO
8.258
2.52
1.46 × 10−3
3.95
5.18
3.15
6.33
H2O, CH4, N2O
8.307
1.71
9.76
2.63
7.00
2.60
5.88
N2O, CH4, H2O
8.347
1.87
7.73
2.88
6.78
2.73
6.04
N2O, CH4, H2O
8.390
1.67
7.52
2.57
6.23
2.55
5.13
N2O, CH4, H2O
8.426
1.90
3.87
2.95
5.49
2.74
4.95
N2O, CH4, H2O
8.467
1.51
4.41
2.34
4.86
2.40
3.64
N2O, CH4, H2O
8.518
1.80 × 10−1
2.29
2.82 × 10−2
4.66
2.66 × 10−1
3.95 × 10−2
N2O, H2O, CH4
8.556
1.23
5.47
1.90
4.42
2.10
2.99
N2O, H2O, CH4, O3
8.584
1.29
3.32
2.00
3.90
2.17
2.62
N2O, H2O, O3
8.629
9.72 × 10−2
4.84
1.50
3.44
1.77
2.10
N2O, O3
8.693
1.22 × 10−1
1.07
1.91
2.79
2.08
1.70
N2O, O3, H2O
8.755
7.05 × 10−2
5.16
1.08
2.64
1.38
1.53
N2O, O3, H2O
8.803
1.11 × 10−1
1.56
1.73
2.74
1.95
1.61
N2O, O3, H2O
8.878
4.67 × 10−2
7.21
6.94 × 10−3
2.22
9.67 × 10−2
1.37
O3, N2O, H2O
8.921
6.39
3.70
9.78
2.09
1.27 × 10−1
1.15
O3, H2O
8.960
3.79
4.62
5.66
1.47
8.05 × 10−2
8.72 × 10−3
O3, H2O
9.014
4.10
2.94
6.23
1.24
8.68
6.74
O3, H2O
9.039
3.92
2.58
5.95
1.12
8.34
5.97
O3, H2O
9.060
3.28
1.75 × 10−3
4.98
7.84 × 10−3
7.09
4.02
O3, H2O
9.080
3.75
4.61 × 10−4
5.84
5.55
8.05
2.18
O3, H2O
9.128
1.56
2.12 × 10−3
2.25
4.76
3.48
3.09
O3, H2O
9.166
2.85
2.22 × 10−4
4.38
3.27
6.28
1.11
O3, CO2, H2O
9.256
3.96
2.52 × 10−5
6.21
2.69
8.48
4.71 × 10−4
O3, CO2, H2O
9.308
2.91
6.54 × 10−3
4.14
1.52 × 10−2
6.27
9.92 × 10−3
O3, CO2, H2O
9.330
2.77
7.52
3.89
1.61
5.97
1.09 × 10−2
O3, CO2, H2O
9.518
8.31 × 10−1
4.54
1.34 × 10−1
2.36 × 10−3
3.97 × 10−1
1.60 × 10−1
O3, CO2, H2O
9.585
2.24
2.90 × 10−4
3.51 × 10−2
2.79 × 10−2
2.94
3.03 × 10−2
O3, CO2, H2O
9.628
5.76
4.98
9.08
2.27
3.89
1.44 × 10−1
O3, CO2, H2O
9.718
5.01
8.04 × 10−3
8.05
7.94 × 10−3
3.74
8.26 × 10−2
O3, H2O, CO2
9.816
3.60 × 10−1
2.14 × 10−4
5.66 × 10−2
3.45 × 10−2
3.53 × 10−1
7.91 × 10−2
O3, H2O
9.882
2.13
2.21 × 10−2
3.15
1.16 × 10−1
2.91
1.09 × 10−1
O3, H2O
9.984
4.75 × 10−2
3.36 × 10−4
7.38 × 10−3
2.46 × 10−3
9.90 × 10−2
2.18 × 10−4
O3, H2O
10.058
1.13
1.35
1.68
8.75 × 10−4
2.61
3.38
O3, H2O
10.163
1.72 × 10−5
1.73 × 10−9
2.47 × 10−6
4.80 × 10−9
4.06 × 10−5
2.61 × 10−9
O3, C2O, H2O
10.232
7.48 × 10−3
8.36 × 10−5
1.19 × 10−3
9.97 × 10−6
1.78 × 10−2
2.27 × 10−5
CO2, H2O, O3
10.334
1.72 × 10−5
1.73 × 10−9
2.47 × 10−6
4.80 × 10−9
4.06 × 10−5
2.61 × 10−9
CO2, H2O
10.367
1.72
1.73 × 10−9
2.47
4.80 × 10−9
4.06
2.61
CO2, H2O
10.470
1.72
1.73
2.47
4.80
4.06
2.61
CO2, H2O
10.533
6.57 × 10−3
3.68 × 10−5
9.82 × 10−4
2.77 × 10−4
1.54 × 10−2
9.73 × 10−5
CO2, H2O
10.622
1.72 × 10−5
1.73 × 10−9
2.47 × 10−8
4.80 × 10−9
4.06 × 10−5
2.61 × 10−9
CO2, H2O
10.831
8.67 × 10−4
1.66 × 10−4
7.71 × 10−5
1.97 × 10−1
1.80 × 10−3
1.78 × 10−4
CO2, H2O
10.872
1.70 × 10−5
1.80 × 10−9
2.39 × 10−8
4.93 × 10−9
4.00 × 10−5
2.68 × 10−9
CO2, H2O
10.985
3.90 × 10−3
7.71 × 10−4
4.71 × 10−4
1.13 × 10−3
8.68 × 10−3
8.94 × 10−4
H2O, CO2
11.082
1.70 × 10−5
1.80 × 10−9
2.39 × 10−6
4.95 × 10−9
4.00 × 10−5
2.68 × 10−9
H2O
11.152
9.02 × 10−4
1.80 × 10−4
8.00 × 10−5
2.14 × 10−4
1.87 × 10−3
1.93 × 10−4
H2O
11.254
2.50 × 10−2
2.30
3.70 × 10−3
2.93 × 10−3
5.54 × 10−2
9.62
H2O
11.275
5.29 × 10−3
2.22 × 10−3
5.95 × 10−4
3.01
1.14
2.50 × 10−3
H2O
11.297
5.01
4.11 × 10−4
8.43
1.33 × 10−4
1.22
3.02 × 10−4
H2O
11.335
1.84
7.46
1.62
8.86
3.78 × 10−3
7.99
H2O
11.366
1.11 × 10−2
1.34 × 10−3
1.51 × 10−3
2.93 × 10−3
2.51 × 10−2
1.86 × 10−3
H2O
11.408
1.42 × 10−3
4.45 × 10−4
1.25 × 10−4
5.28 × 10−4
2.92 × 10−3
4.76 × 10−4
H2O
11.457
1.19 × 10−2
1.16 × 10−3
1.61 × 10−3
2.82 × 10−3
2.67 × 10−2
1.68 × 10−3
H2O
11.498
1.52 × 10−4
4.69 × 10−6
1.38 × 10−5
5.65 × 10−6
3.22 × 10−4
5.04 × 10−6
H2O
11.538
7.82 × 10−3
3.06 × 10−4
1.09 × 10−3
9.20 × 10−4
1.80 × 10−2
4.84 × 10−4
H2O
11.582
3.32 × 10−4
2.46 × 10−5
2.90 × 10−5
2.93 × 10−5
6.94 × 10−4
2.63 × 10−5
H2O
11.627
1.66
5.70 × 10−6
1.50
6.86 × 10−6
3.52
6.11 × 10−6
H2O
11.712
5.37 × 10−2
8.94 × 10−4
8.12 × 10−3
2.36 × 10−3
1.09 × 10−1
7.13 × 10−8
H2O
11.731
1.71
1.88
2.48
1.73
3.88 × 10−2
5.81 × 10−4
H2O
11.751
1.68
1.94
2.43
1.70
3.80
5.80
H2O
11.805
1.68 × 10−5
1.89 × 10−9
2.31 × 10−6
5.09 × 10−9
3.95 × 10−5
2.75 × 10−9
H2O
11.886
1.45 × 10−2
5.94 × 10−4
2.05 × 10−3
2.30 × 10−3
3.29 × 10−2
1.09 × 10−3
H2O
11.951
1.68 × 10−5
1.89 × 10−9
2.31 × 10−6
5.09 × 10−9
3.95 × 10−5
2.75 × 10−9
H2O
12.063
2.11 × 10−2
2.98 × 10−5
3.11 × 10−3
1.56 × 10−3
4.74 × 10−2
3.45 × 10−4
H2O, CO2
12.084
7.55 × 10−3
7.45 × 10−4
9.89 × 10−4
1.58
1.72
9.97
H2O
12.106
5.53
2.56 × 10−3
5.98
3.48
1.20
2.87 × 10−3
H2O
12.142
9.08 × 10−4
2.04 × 10−4
7.52 × 10−5
2.42 × 10−4
1.88 × 10−3
2.18 × 10−4
H2O, CO2
12.261
5.04 × 10−2
5.69 × 10−5
7.32 × 10−3
7.00 × 10−3
1.03 × 10−1
1.86 × 10−3
H2O
12.307
4.90 × 10−3
5.05 × 10−3
4.20 × 10−4
6.05
9.94 × 10−3
5.42
CO2
12.353
5.03 × 10−2
6.11 × 10−6
7.36 × 10−3
5.40
1.03 × 10−1
1.09
H2O, CO2
12.384
2.02
1.52 × 10−3
2.77
5.16
4.49 × 10−2
2.64
CO2
12.428
8.40
4.52 × 10−6
1.22 × 10−2
1.37 × 10−2
1.56 × 10−1
4.59
H2O, CO2
12.465
3.45
8.16 × 10−4
4.90 × 10−3
6.89 × 10−3
7.40 × 10−2
2.64
H2O, CO2
12.502
2.06 × 10−1
7.91 × 10−3
3.09 × 10−2
1.10 × 10−2
2.68 × 10−1
9.61
H2O, CO2
12.542
1.82
9.11
2.73
7.68 × 10−3
2.52
4.61
H2O, CO2
The extinction coefficients are defined for the following absorption laws: strong random band model In
= −c1w½, weak random band model In
= −(c3w − c4w2), and strong regular band model
= 1 − c5m1/2. The goodness of fit of the various models is given in terms of the surn of the squares of the deviation of the transmission from the straight line fit, ∑(Δy)2. w is precipitable water vapor along the path in mm; m, which is dimensionless, is proportional to the quantity of absorbing material and is defined in the text.