Models of the variability of atmospheric properties
Document ID: 310
Humphrey, C. H.1
Philbrick, C. Russell2
1 Visidyne Inc., Burlington, MA, U.S.A.
2 USAF, Geophysics Laboratory, Hanscom AFB, Bedford, MA, U.S.A.
Abstract
As discussed in Chapter 2, predictions of the infra red racliance are made principally on the basis of theoretical models that utilize observations of the atmospheric temperatures and species concentrations. Extensive measurements of these properties of atmosphere have been carried out over the past ten years using ground-based, rocket and satellite borne instruments. From these measurements a number of models have been developed to describe the behavior of the smooth atmospheric profiles that result from variations in the solar heating, magnetic activity, and motion of the earth.
In this chapter thesc models and measurements that support these models are reviewed briefly. Special emphasis is given to the Jacchia 77 (J77) model as this model has been selected as the basis for updating the high altitude infrared model to include the effects of atmospheric variability. This review will enable us to draw some inferences concerning the variability of the atmospheric infrared radiance that can result from the variations in species concentrations and temperature. In Chapter 4 initial efforts to include some of the variations represented by these models in the calculation of the infrared radiance are presented.
| Citation: | "Models of the variability of atmospheric properties", Humphrey, C. H., C. R. Philbrick, Atmospheric Infrared Radiance Variability, U.S. Air Force, 1981, pp. 25 - 52, Environmental Research Papers, No. 748, Bibliographic Code: 1981visi.rept...25H |