Brief Description:
The Jacchia Reference Atmospheres were published as reports in 1970, 1971, and
1977. These publications include explanatory text, formulas, and tables. The
density, temperature, and composition are listed in the altitude range 90 km to
2500 km. Variations with season, latitude, and local time are considered.
Auxiliary tables are provided to evaluate geomagnetic, semi-annual, and
seasonal-latitudinal effects. Jacchia's models are based mostly on satellite
drag data. Assuming diffusive equilibrium, the atmospheric profiles are defined
by the exospheric temperature. He contributed the thermospheric part (110 km to
200 km) to the CIRA-72 model. Jacchia (1964) was the first to point out the
coupling between solar wind and atmosphere.
Availability: On microfiche (Jacchia 1964, B08448; Jacchia 1970, NSSDC-ID: MN-30A, B10091; Jacchia 1971, MN-31A, B10091; Jacchia 1977, MN-37A, ftp model archive ).
References:
L. G. Jacchia, Static Diffusion Models of the Upper Atmosphere with Empirical
Temperature Profiles, Smithson. Astrophys. Obs. Spec. Rept. No. 170,
Cambridge, Massachusetts, 1964. (B08448)
L. G. Jacchia, Revised Static Models of the Thermosphere and Exosphere with Empirical Temperature Profiles, Smithson. Astrophys. Obs. Spec. Rept. No. 332, 1971. (B10091)
L. G. Jacchia, Thermospheric Temperature, Density, and Composition: New Models, Smithson. Astrophys. Obs. Spec. Rept. No. 375, 1977.
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NASA Official: Dr. Robert McGuire, Head of the Space Physics Data Facility