Physics
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsa43a1108s&link_type=abstract
American Geophysical Union, Fall Meeting 2005, abstract #SA43A-1108
Physics
0310 Airglow And Aurora, 0355 Thermosphere: Composition And Chemistry, 0358 Thermosphere: Energy Deposition (3369), 7519 Flares, 7549 Ultraviolet Emissions
Scientific paper
Measurements by the Solar Extreme-ultraviolet Experiment (SEE) and the Global Ultraviolet Imager (GUVI) on the TIMED satellite enable direct comparison of daytime airglow emissions with the solar EUV and X-rays that excite them. During large solar flares, the daytime airglow can additionally serve as a diagnostic of flare energy deposition. The SEE instrument has made the first comprehensive measurements of solar flare enhancements in the EUV, but earlier estimates of the solar soft X-ray enhancement obtained from SEE data yielded unrealistically large changes in airglow, density, and electron content. A new analysis technique developed specifically for flare conditions can now obtain a more accurate flare spectrum in the soft X-ray region. We apply spectra obtained using this method to models of thermospheric airglow emissions, and compare the results to GUVI observations for flare and non-flare conditions.
Bailey Scott M.
Gladstone Randall G.
Qian Liwen
Rodgers Erica M.
Solomon Stanley C.
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