Comparison of TIE-GCM ΣO/N2 Column Ratios with Measurements of the SSUSI Instrument
Abstract
The column-integrated ratio of atomic oxygen to molecular nitrogen (ΣO/N2) in the thermosphere is currently monitored during the daytime by several satellite instruments. Among these is the Special Sensor Ultraviolet Spectrographic Imager (SSUSI) currently operational on DMSP F-16, -17, and -18, and scheduled for two additional launches in upcoming years. These measurements constitute a significant portion of all data currently available for characterizing the thermosphere. With this in mind, we present a comparison of these measurements with the Thermosphere-Ionosphere-Electrodynamics General Circulation Model (TIE-GCM) in an effort to illuminate the discrepancies between measured and modeled behavior. Based on the insights gained from this study, we offer a method for adjusting the energy and forcing inputs of TIE-GCM in an effort to achieve improved agreement.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2012
- Bibcode:
- 2012AGUFMSA23A2151S
- Keywords:
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- 0355 ATMOSPHERIC COMPOSITION AND STRUCTURE / Thermosphere: composition and chemistry;
- 0358 ATMOSPHERIC COMPOSITION AND STRUCTURE / Thermosphere: energy deposition;
- 7959 SPACE WEATHER / Models;
- 7999 SPACE WEATHER / General or miscellaneous