An analytic/empirical model of the middle and low latitude ionosphere
By: J.M. Forbes ... [et al.].
Series: GL-TR -- 89-0096; Environmental research papers -- no. 1027; AFGL-TR -- 89-0096; Environmental research papers (Hanscom AFB, Mass.) -- no. 1027
Publisher: Ionospheric Physics Division, Geophysics Laboratory
Published: 1989
Place of publication: Hanscom AFB, Mass
Language: eng
Number of pages: 48
Subjects: Ionospheric electron density; Measurement; F region; Ionization of gases
Description: An improved analytic/empirical model of F-layer plasma density is developed by modifying the Chiu (1975) model so as to: (a) better approximate middle latitude F-layer peak heights (hmF2's) as derived from ionosonde data, and (b) better model features such as the post-sunset rise in the F-layer peak height, and the equatorial anomaly maxima in plasma density near + or - 15 geomagnetic latitude. The latter is accomplished by applying analytic low-latitude correction as derived from differences between the Chiu model and the SLIM model of Anderson et al. Results of a numerical model are also presented that demonstrate the importance of these low-latitude plasma structures tot he neutral dynamics of the thermosphere.
Notes: Title from cover.

"31 March 1989."

"Ionospheric Physics Division project 2310."

Includes bibliographical references (p. 15).