Time Continuous Measurements of Cusp Upwelling Event Confirmed by Satellite Pass Through Drag Doubling
Abstract
We track for the first time, a complete cusp upwelling event. Time continuous profiles track, from pre-onset time through to a satellite pass measuring the resultant density/drag doubling near 450 km. The photometric optical flash and electron density increase near 180 km marks flux tube opening. Enhanced electron temperature tracks electron heating by soft electrons, onset of the plasma flow jet is observed, consequent growth of ion frictional drag heating is tracked by the consequent Ti enhancement, ion upflow is measured, and most importantly the vertical overhead neutral wind upflow is followed form onset to overshoot and collapse. The PMAF is tracked, and the satellite pass measures the downstream density/drag doubling. The observed relative timing/duration of each step, tracks the theoretical prediction with precision adequate to enable quantitative refinement of the theory. Incorporation of the theory into parameter-selection criteria should significantly enhance the value of future satellite-drag correlation studies.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2016
- Bibcode:
- 2016AGUFMSA53B2453C
- Keywords:
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- 0358 Thermosphere: energy deposition;
- ATMOSPHERIC COMPOSITION AND STRUCTUREDE: 2431 Ionosphere/magnetosphere interactions;
- IONOSPHEREDE: 2437 Ionospheric dynamics;
- IONOSPHEREDE: 7959 Models;
- SPACE WEATHER