Infrared Cooling of the Atmosphere by the 9.6 Micron Band of Ozone.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO
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Monthly values of the radiative cooling of the atmosphere from 0-70 kilometers by the 9.6 micrometer band of ozone are calculated using a random band model to represent frequency integration combined with a 3-parameter inhomogeneous path approximation. Effects of line shape variability above 30 km are handled by a correction factor calculated from the Voigt integral. Calculations were made on a global basis using data from a three-dimensional 26 level general circulation model above 30 kilometers and observational data below 30 kilometers. Results indicate maximum cooling at 50 km with a maximum value of 5.4 Cday at 60 degrees N in June and at 60 degrees S in December. Slight radiative heating occurs above the tropopause with a maximum value of 0.2 Cday. Values approach zero near the ground and near 70 km. Ozone is concluded to be a major contributor to the radiative budget of the middle and upper stratosphere.
- Atmospheric Physics