Modeling the ambient, low latitude F-region ionosphere - A review

Details Modeling the ambient, low latitude F-region ionosphere - A review Modeling the ambient, low latitude F-region ionosphere - A review

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jatp...43..753a&link_type=abstract

(International Symposium on Equatorial Astronomy - II, 6th, Aguadilla, PR, July 17-23, 1980.) Journal of Atmospheric and Terrest

Physics

83

Atmospheric Models, Atmospheric Physics, Equatorial Atmosphere, F Region, Ionospheric Drift, Tropical Regions, Crossed Fields, Ionospheric Electron Density, Ionospheric Ion Density, Magnetic Equator, Plasma Drift, Space Plasmas

Scientific paper

Recent theoretical modeling efforts concerned with the vertical and horizontal effects of E x B drift on the equatorial ionosphere are described. Solving the time-dependent ion continuity equation for plasma densities as a function of altitude, latitude, and local time shows that: (1) incorporation of those F-region vertical E x B drifts typical of solar maximum and minimum equinoctial conditions yields good agreement, between observed and calculated f0F2 values at the magnetic equator, for these two periods; (2) modeling the seasonal anomaly in f0F2 for October 1975 and July 1976 at Kodaikanal requires different vertical E x B drift patterns for the two months, with significant differences between these patterns and the drifts measured at Jicamarca; and (3) incorporation of a realistic E x B drift model that includes post-sunset enhancement in upward drift shows bottomside F-region electron density scale heights to be in agreement with 1900-2400 LT period measured values.

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