The Variability of the Zonal Plasma Drift in the Equatorial F Region

Details The Variability of the Zonal Plasma Drift in the Equatorial F Region The Variability of the Zonal Plasma Drift in the Equatorial F Region

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsa51b1234k&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SA51B-1234

Physics

[2411] Ionosphere / Electric Fields, [2415] Ionosphere / Equatorial Ionosphere, [2437] Ionosphere / Ionospheric Dynamics

Scientific paper

The variability of the equatorial zonal plasma drift with solar flux, season, longitude, latitude, and local time is investigated by analyzing the measurements of the ion velocity from the ROCSAT-1 satellite. Our major objectives are to identify (1) the effect of the zonal shear plasma flow on the plasma bubble morphology and (2) the presence of wave structure in the zonal plasma drift. For these purposes, we compare the latitudinal profile of the zonal plasma drift observed by ROCSAT-1 with the plasma bubble morphology observed by TIMED/GUVI. The longitudinal variation of the zonal plasma drift velocity observed by ROCSAT-1 is compared with the longitudinal wave structures in the F-region plasma density observed by ROCSAT-1, CHAMP, and COSMIC and in the F-region zonal wind velocity observed by CHAMP.

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