Evaluation of six ionospheric models as predictors of TEC

Technical Report · Thu May 03 04:00:00 EDT 1990

OSTI ID:6193185

Brown, L D; Daniell, R E; Fox, M W; Klobuchar, J A; Doherty, P H

The authors have gathered TEC data from a wide range of latitudes and longitudes for a complete range of solar activity. This data was used to evaluate the performance of six ionospheric models as predictors of Total Electron Content (TFC). The TEC parameter is important in correcting modern DOD space systems, which propagate radio signals from the earth to satellites, for the time delay effects of the ionosphere. The TEC data were obtained from polarimeter receivers located in North America, the Pacific, and the East Coast of Asia. The ionospheric models evaluated are: (1) the International Reference Ionosphere (IRI); (2) the Bent model; (3) the Ionospheric Conductivity and Electron Density (ICED) model; (4) the Penn State model; (5) the Fully Analytic Ionospheric Model (FAIM, a modification of the Chiu model); and (6) the Damen-Hartranft model. They will present extensive comparisons between monthly mean TEC at all local times and model TEC obtained by integrating electron density profiles produced by the six models. These comparisons demonstrate that even thought most of the models do very well at representing f0F2, none of them do very well with TEC, probably because of inaccurate representation of the topside scale height. They suggest that one approach to obtaining better representations of TEC is the use of f0E2 from coefficients coupled with a new slab thickness developed at Boston University.

• Research Organization: Boston Univ., MA (United States). Center for Space Physics
• OSTI ID: 6193185
• Report Number(s): AD-P-006301/6/XAB
• Country of Publication: United States
• Language: English

Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPARATIVE EVALUATIONS
CRITICAL FREQUENCY
EARTH ATMOSPHERE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
EVALUATION
IONOSPHERE
MATHEMATICAL MODELS
NATIONAL ORGANIZATIONS
PERFORMANCE
PHYSICAL PROPERTIES
PLANETARY IONOSPHERES
RADIATIONS
RADIOWAVE RADIATION
SOLAR ACTIVITY
TIME DELAY
US DOD
US ORGANIZATIONS