HR: 1340h
AN: SA43A-1108    [Abstracts]
TI: Thermospheric Response to Solar EUV during Quiet and Flare Conditions
AU: * Solomon, S C
EM: stans@ucar.edu
AF: National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO 80307 United States
AU: Qian, L
EM: lqian@ucar.edu
AF: National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO 80307 United States
AU: Gladstone, G R
EM: randy.gladstone@swri.org
AF: Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238 United States
AU: Bailey, S M
EM: sbailey@gi.alaska.edu
AF: University of Alaska, Geophysical Institute, Fairbanks, AK 99775 United States
AU: Rodgers, E M
EM: erica.rodgers@gi.alaska.edu
AF: University of Alaska, Geophysical Institute, Fairbanks, AK 99775 United States
AB: 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.
DE: 0310 Airglow and aurora
DE: 0355 Thermosphere: composition and chemistry
DE: 0358 Thermosphere: energy deposition (3369)
DE: 7519 Flares
DE: 7549 Ultraviolet emissions
SC: SPA-Aeronomy [SA]
MN: Fall Meeting 2005