This data set includes several global empirical models of the ionospheric electron temperature. Two models (equinox and solstice) at 3000 km altitude based on ISIS 1 satellite data (1969-1970), three models (equinox, December solstice, June solstice) at 1400 km based on ISIS 2 data (1971-1972), two models (equinox, June solstice) each at 300 km and 400 km based on AE-C data (4/75-12/76, 2/77-6/78). A special form of spherical harmonics analysis is applied to the satellite data resulting in 81 coefficients per model. The coefficients describe the electron temperature variations as a function of dip latitude and local time up to order 8. These models are used in the International Reference Ionosphere (Bilitza et al., 1985).
Availability: Included in the International Reference Ionosphere.
L. H. Brace and R. F. Theis, Global Empirical Models of Ionospheric Electron Temperature in the Upper F-Region and Plasmasphere Based on in situ Measurements from the Atmosphere Explorer-C, ISIS 1, and ISIS 2 Satellites, J. Atmos. Terr. Phys., 43, 1317, 1981.
D. Bilitza, L. H. Brace, and R. F. Theis, Modeling of Ionospheric Temperature Profiles, Adv. Space Res. 5, #7, 53, 1985.