Improvement of the solar-cycle variation of IRI lower ionosphere models by means of radio wave propagation data

Conference · Sun Jan 01 04:00:00 EST 1984 · Adv. Space Res.; (United States)

OSTI ID:6094168

Singer, W; Bremer, J; Taubenheim, J

Day-time and night-time radiowave absorption data obtained from observations performed in Central Europe are compared with absorption values calculated from the electron density profiles of the International Reference Ionosphere (IRI) using a full-wave method. Discrepancies between the observed and calculated absorption values were found for the diurnal and solar-cycle variation. Solar cycle variation was found to be much greater in the IRI data than in the observational data. To readjust the observational data, a statistical method is presented which is based on the relation between solar-activity electron density and electron density in the D-region of the ionosphere. The modified electron density profiles are presented in the form of a series of graphs. 8 references.

• Research Organization: Zentralinstitut fuer Solar-Terrestrische Physik, Berlin, East Germany
• OSTI ID: 6094168
• Report Number(s): CONF-8308202-
• Conference Information: Journal Name: Adv. Space Res.; (United States) Journal Volume: 4
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DAILY VARIATIONS
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
IONOSPHERE
MATHEMATICAL MODELS
PLANETARY IONOSPHERES
RADIATIONS
RADIOWAVE RADIATION
SOLAR CYCLE
VARIATIONS
WAVE PROPAGATION