A Case Study of the Ionospheric O+ Upflow Burst

Details A Case Study of the Ionospheric O+ Upflow Burst A Case Study of the Ionospheric O+ Upflow Burst

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsa32a0671l&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SA32A-0671

Physics

2407 Auroral Ionosphere (2704), 2431 Ionosphere/Magnetosphere Interactions (2736), 2435 Ionospheric Disturbances

Scientific paper

The EISCAT Tromsoe radar observed a burst of ionospheric O+ upflow above 500 km during the May 15, 1997 storm, in a region of convection reversal and strong field-aligned current. POLAR satellite observed enhancements of the O+ number density in the same local time sector. Magnetic field mapping using the T96 magnetic field model shows POLAR and EISCAT Tromsoe radar are probably on the same magnetic field line. This may be a case of bursty ionospehric outflows. We examine possible generation mechanisms for the observed ionospheric O+ upflow with the help of the Assimilative Mapping of Ionospheric Electrodynamics procedure and the NCAR Thermosphere-Ionosphere-Electrodynamics General Circulation Model.

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