Analytic/empirical model of the middle- and low-latitude ionosphere. Interim scientific report

Technical Report · Thu Mar 30 23:00:00 EST 1989

OSTI ID:6719630

Forbes, J M; Anderson, D N; Codrescu, M; Batista, P P

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.

• Research Organization: Air Force Geophysics Lab., Hanscom AFB, MA (USA)
• OSTI ID: 6719630
• Report Number(s): AD-A-220004/6/XAB; GL-TR--89-0096
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COUPLING
DIMENSIONS
DOCUMENT TYPES
DYNAMICS
EARTH ATMOSPHERE
ELECTRON DENSITY
ELECTRONIC EQUIPMENT
EQUATOR
EQUIPMENT
F REGION
GEOGRAPHICAL VARIATIONS
HEIGHT
ION DENSITY
IONOSONDES
IONOSPHERE
LATITUDE EFFECT
MATHEMATICAL MODELS
MECHANICS
PLANETARY IONOSPHERES
PLASMA
PLASMA DENSITY
PROGRESS REPORT
RADIO EQUIPMENT
THERMOSPHERE
VARIATIONS