✍ Scribed by G. N. Plass
No coin nor oath required. For personal study only.
The upward and downward radiation flux and cooling rate are calculated for the 15μ band of carbon dioxide. Results are obtained for three different carbon‐dioxide concentrations from the surface of the earth to 75 km, and for six frequency intervals covering the band. The infra‐red absorption measurements of Cloud (1952) are used for calculations, on a high‐speed electronic computer, by a method which takes account of the pressure and Doppler broadening, the overlapping of the spectral lines, and the variation of the intensity and half‐width of the spectral lines with temperature and pressure. The numerical integration is performed over intervals that are never larger than 1 km and average values over layers are not used. The cooling rate for the present atmospheric carbon‐dioxide concentration is greater than 1°C/day from 24 km to 70 km and is greater than 4°C/day from 38 km to 55 km. The sum of the ozone and carbon‐dioxide cooling rates is greater than 4°C/day from 33 km to 57 km and agrees reasonably well with the heating due to ozone absorption. The results for different carbon‐dioxide concentrations indicate that the average temperature at the surface of the earth would rise by 3.6°C if the carbon‐dioxide concentration were doubled and would fall by 3.8°C if the carbon‐dioxide concentration were halved, on the assumption that nothing else changed to affect the radiation balance.
📜 SIMILAR VOLUMES
## Abstract The upward and downward radiation flux and the heating and cooling rate in the atmosphere have been determined for the 9.6 μ band of ozone from the absorption measurements of Summerfield. Three different ozone distribution curves as well as three different temperature‐height curves have
## Abstract Observation from outside the atmosphere of the emission from different wavelength regions in the 15μ carbon‐dioxide band, would give information of the vertical temperature distribution between 10 and 50 km altitude. The measurements required are feasible using a Fabry‐Perot interferome