Equatorial ionospheric vertical plasma drift model over the Brazilian region

Details Equatorial ionospheric vertical plasma drift model over the Brazilian region Equatorial ionospheric vertical plasma drift model over the Brazilian region

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jgr...10110887b&link_type=abstract

Journal of Geophysical Research, Volume 101, Issue A5, p. 10887-10892

Physics

27

Ionosphere: Equatorial Ionosphere, Radio Science: Ionospheric Physics, Ionosphere: Electric Fields, Ionosphere: Modeling And Forecasting

Scientific paper

Comparison between equatorial ionospheric F region vertical plasma drift from satellite measurements [Fejer et al., 1995], for the Brazilian longitude sector, and the drifts derived from ionosonde measurements around sunset shows significant differences on the prereversal peak behavior during solstices of high solar activity periods. Using ionosonde measurements around sunset and satellite measurements at other local times, we constructed an ionospheric vertical plasma drift model that is representative of the equatorial region over the Brazilian longitudes, where the magnetic declination is around -20°. The so derived drift model, here called IDM (ionosonde drift model), is used as an input to the Sheffield University plasmasphere-ionosphere model (SUPIM). It is shown that the F layer heights given by SUPIM with IDM are in good agreement with ionosonde measurements over the Brazilian longitudes and that IDM better simulates the F layer heights than the averaged drifts given by the satellite drift model [Fejer et al., 1995].

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