Revised Static Models of the Thermosphere and Exosphere with Empirical Temperature Profiles

Details Revised Static Models of the Thermosphere and Exosphere with Empirical Temperature Profiles Revised Static Models of the Thermosphere and Exosphere with Empirical Temperature Profiles

May 1971

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1971saosr.332.....j&link_type=abstract

SAO Special Report #332 (1971)

Computer Science

35

Scientific paper

These models are a revision of those published last year by the author. Although an effort had been made in those models to increase the n (O)/n (O2) ratio, new observational evidence showed that the increase had not been large enough. Here we have attempted to meet as closely as possible the composition and density data derived for a height of 150 km by von Zahn on the basis of all the available mass-spectrometer and EUV-absorption data. Mixing is assumed to prevail to a height of 100 km, diffusion above this height. All the recognized variations that can be connected with solar, geomagnetic, temporal, and geographic parameters are represented by empirical equations. Some of these equations have been revised not only in their numerical coefficients but also in their form, as a result of new analyses. Tables showing temperature, density, and composition as a function of height are given for exospheric temperatures ranging from 500° to 1900° at 100°K intervals and for heights from 90 to 2500 km. A summary table at the end gives densities only for the same range of heights and temperatures, but at 50° K intervals in the exospheric temperature. A set of auxiliary tables is provided to help in the evaluation of the diurnal, geomagnetic, semiannual, and seasonal-latitudinal effects (including the helium migration).

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