Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsa13c..07b&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SA13C-07
Physics
[2415] Ionosphere / Equatorial Ionosphere, [2427] Ionosphere / Ionosphere/Atmosphere Interactions, [2437] Ionosphere / Ionospheric Dynamics
Scientific paper
In the topside ionosphere, the high mobility of the plasma along the magnetic field allows field-aligned ion drifts to occur readily as a result of field-aligned gravitational forces, collisional forces, or pressure gradients. Therefore, variations in the field-aligned ion drifts can be used to explore the influence of thermospheric, electrodynamic, and chemical processes on the ionosphere. Longitude variations in the field-aligned ion drifts near the magnetic equator are presented using observations from the Coupled Ion Neutral Dynamics Investigation (CINDI) onboard the Communications/Navigation Outage Forecast System (C/NOFS) satellite. These observations were obtained during the period of extremely low solar activity present in 2008 and 2009, allowing the seasonal and longitudinal variations at solar minimum to reveal the reactive importance of the processes responsible for topside field-aligned plasma drifts.
Burrell A. G.
Heelis Roderick A.
Stoneback R.
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