Table I
Data Acquired During Flight 1; ↓ and ↑ Represent Downwelling and Upwelling Fluxes (Uncertainties are one Standard Deviation)
| Altitude (m) | Radiant power (mW) | Sampling time(points/sec) | Sampling rate(sec) | Sample points |
|---|
| 3600 | ↓26.43 ± 0.04 | 2.5 | 30 | 75 |
| ↑2.67 ± 0.01 | 2.5 | 42 | 105 |
| 510 | ↓20.57 ± 0.02 | 2.5 | 48 | 120 |
| ↑2.52 ± 0.01 | 2.5 | 36 | 90 |
Table II
Test to Confirm Small-Scale Random Albedo Variations
| Radiant power (mW) | Elapsed observation time (sec) | Distance traveled (m) | Sample points averaged |
|---|
| 2.535 | 6 | 450 | 15 |
| 2.513 | 12 | 900 | 15 |
| 2.522 | 18 | 1350 | 15 |
| 2.530 | 24 | 1800 | 15 |
| 2.524 | 30 | 2250 | 15 |
| 2.508 | 36 | 2700 | 15 |
Table III
Data Acquired During Flight 2
| Altitude (m) | Radiant power (mW) | Sampling time (points/sec) | Sampling rate (sec) | Sample points |
|---|
| 3600 | ↓27.05 ± 0.02 | 2.5 | 24 | 60 |
| ↑1.67 ± 0.01 | 2.5 | 11 | 28 |
| 300 | ↓123.15 ± 0.02 | 2.5 | 30 | 75 |
| ↑0.63 ± 0.01 | 2.5 | 38 | 94 |
Table IV
Flux Densities, Net Flux Densities, and Divergence of the Flux at Each Altitude During Flights 1 and 2
| Altitude (mbar) | Radiative flux density (W m−2) | Net flux density (W m−2) | Divergence of the flux (W m−2) | Ratio |
|---|
| Flight 1 |
| 649 | ↓1288.8 ± 2.0 | 1158.6 ± 2.1 | | |
| ↑130.2 ± 0.5 | | 278.6 ± 2.4 | 0.216 |
| 954 | ↓1002.9 ± 1.0 | 880.0 ± 1.1 | | |
| ↑122.9 ± 0.5 | | | |
| Flight 2 |
| 649 | ↓1319.1 ± 1.0 | 1237.7 ± 1.1 | | |
| ↑81.4 ± 0.5 | | 139.6 ± 1.6 | 0.106 |
| 978 | ↓1128.8 ± 1.0 | 1098.1 ± 1.1 | | |
| ↑30.7 ± 0.5 | | | |
Table V
Water Vapor Absorptivities for Flight 1; Aν = Absorptivity, Eλ = Spectral Irradiance at Wavelength λ
| Upper level | Lower level |
|---|
|
|
|---|
| Band (μm) (1) | Aν (2) | Eλ Δλ (W m−2) (3) | AνEλ Δλ (W m−2) (4) | Aν (5) | Eλ Δλ (W m−2) (6) | AνEλ Δλ (W m−2) (7) |
|---|
| 0.94 | 0.038 | 104.8 | 3.98 | 0.225 | 104.8 | 23.59 |
| 1.1 | 0.044 | 71.75 | 3.18 | 0.370 | 71.75 | 26.58 |
| 1.38 | 0.212 | 98.68 | 20.92 | 0.635 | 98.68 | 62.67 |
| 1.87 | 0.256 | 52.17 | 13.34 | 0.572 | 52.17 | 29.84 |
| 2.7 | 0.495 | 31.35 | 15.52 | 0.869 | 31.35 | 27.25 |
| 3.2 | 0.139 | 12.50 | 1.74 | 0.756 | 12.50 | 9.46 |
Table VI
Water Vapor Absorptivities for Flight 2
| Upper level | Lower level |
|---|
|
|
|---|
| Band (μm) (1) | Aν (2) | Eλ Δλ (W m−2) (3) | AνEλ Δλ (W m−2) (4) | Aν (5) | Eλ Δλ (W m−2) (6) | AνEλ Δλ (W m−2) (7) |
|---|
| 0.94 | 0.026 | 104.8 | 2.69 | 0.179 | 104.8 | 18.75 |
| 1.1 | 0.029 | 71.75 | 2.07 | 0.279 | 71.75 | 20.03 |
| 1.38 | 0.163 | 98.68 | 16.13 | 0.544 | 98.68 | 53.69 |
| 1.87 | 0.215 | 52.17 | 11.21 | 0.509 | 52.17 | 26.57 |
| 2.7 | 0.444 | 31.35 | 13.92 | 0.796 | 31.35 | 24.95 |
| 3.2 | 0.098 | 12.50 | 1.23 | 0.603 | 12.50 | 7.54 |
Table VII
Total Water Absorption at Each Level and at the Atmospheric Layer Included Between the Upper and Lower Flight Levels for Flights 1 and 2
| Flight (1) | Zenith angle (deg) (2) | Upper level absorption (W m−2) (3) | Lower level absorption (W m−2) (4) | Lower level-upper level absorption (W m−2) (5) |
|---|
| 1 | 29.50 | 51 | 156 | 105 |
| 2 | 32.50 | 40 | 128 | 88 |
Table VIII
Total Absorption, Water Vapor Absorption, and Aerosol Absorption for the Atmospheric Layer Included in Each Flight
| Flight (1) | Measured divergence of the flux (W m−2) (2) | Gaseous absorption (W m−2) (3) | Aerosol absorption (W m−2) (4) |
|---|
| 1 | 278.6 | 105 | 173.6 |
| 2 | 139.6 | 88 | 51.6 |
Table IX
Solar Constant as Determined from our Flux Density Measurements at Each Altitude
| Flight | Level | Solar constant (W m−2) |
|---|
| 1 | Upper level | 1391.8 |
| Lower level | 1384.5 |
| 2 | Upper level | 1411.1 |
| Lower level | 1360.4 |
| Average | | 1387 ± 21 |
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