Traveling ionospheric disturbances (TIDs) at mid-latitudes - solar cycle phase dependence

Journal Article · Wed Jun 01 00:00:00 EDT 1988 · Radio Sci.; (United States)

DOI:https://doi.org/10.1029/RS023i003p00283· OSTI ID:7066174

Soicher, H

Faraday observations of total electron content (TEC) at Haifa, Israel (32.87 deg N, 35.09 deg E), during periods near the maximum (1980) and minimum (1984) phases of the current solar cycle have yielded information about the structure and variability of the ionosphere during both epochs in general, and about traveling ionospheric disturbances (TIDs) in particular. The TEC is characterized by the large differences in the seasonally dependent absolute values, by the generally occurring spatially confined postsunset secondary maxima during solar maximum which are absent during solar minimum, and by the regularly appearing modulations of the structure due to TIDs. There is a definite seasonal and solar phase dependence in the characteristics of the TIDs. This is expressed in terms of their frequency of occurrence, likely phase of the diurnal variation during which the occurrences take place, their absolute magnitudes, and the time rate of change of these magnitudes. 9 references.

• Research Organization: Communications Electronics Command, Fort Monmouth, NJ (USA)
• OSTI ID: 7066174
• Journal Information: Radio Sci.; (United States), Journal Name: Radio Sci.; (United States) Vol. 23; ISSN RASCA
• 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
DISTURBANCES
EARTH ATMOSPHERE
ELECTRON DENSITY
ELECTRON MOBILITY
F REGION
IONOSPHERE
IONOSPHERIC STORMS
MEDITERRANEAN SEA
MOBILITY
PARTICLE MOBILITY
PLANETARY IONOSPHERES
SATELLITES
SEAS
SEASONAL VARIATIONS
SOLAR CYCLE
SURFACE WATERS
TRAVELLING IONOSPHERIC DISTURBANCE
VARIATIONS