Accession Number : ADA290135

Title :   Correlation and Gradient Characteristics of Ionospheric Parameters in Europe.

Descriptive Note : Interim rept. no. 1, Sep-Nov 94,

Corporate Author : TEL-AVIV UNIV (ISRAEL)

Personal Author(s) : Heyman, Ehud ; Tsedilina, Elene E.

PDF Url : ADA290135

Report Date : 29 NOV 1994

Pagination or Media Count : 9

Abstract : The differences in critical frequencies of the ionosphere between measured values on the European continent and the model parameters of 'International Reference Ionosphere of 1990' were considered. In general, absolute relative differences of foF2 are of the order of 10 percent. They increase for twilight and night periods up to 20 or 30 percent. Relative differences for foE are less than 5 percent for day-time periods and usually are larger for twilight periods.

Descriptors :   *STANDARDS, *IONOSPHERIC MODELS, *IONOSPHERIC DISTURBANCES, *IONOSPHERIC PROPAGATION, ISRAEL, MODELS, PARAMETERS, NIGHT, FREQUENCY RESPONSE, DIURNAL VARIATIONS, GRADIENTS, TWILIGHT.

Subject Categories : Atmospheric Physics
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE