TIMED GUVI and SEE Observations of Solar Irradiance Variations and the Terrestrial Airglow Response

Details TIMED GUVI and SEE Observations of Solar Irradiance Variations and the Terrestrial Airglow Response TIMED GUVI and SEE Observations of Solar Irradiance Variations and the Terrestrial Airglow Response

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsa23a0378w&link_type=abstract

American Geophysical Union, Fall Meeting 2004, abstract #SA23A-0378

Physics

7549 Ultraviolet Emissions, 2427 Ionosphere/Atmosphere Interactions (0335), 2736 Magnetosphere/Ionosphere Interactions, 0341 Middle Atmosphere: Constituent Transport And Chemistry (3334), 0358 Thermosphere: Energy Deposition

Scientific paper

Since the launch of the TIMED mission in 2001, the SEE and GUVI instruments have observed solar radiance changes during numerous solar flares, and measured their short-term impact on the terrestrial airglow, manifested as changes in both resonantly scattered and photoelectron excited emissions. The continuous coverage and higher time resolution of the GUVI airglow observations, in conjunction with the multispectral (5-color) image format, constitute a unique source of information on the time variation of the solar irradiance in different spectral regions. GUVI limb observations provide additional data on heating and composition changes in the thermosphere in response to these energy inputs. We examine changes in the observed airglow between quiet and flare conditions, and attempt to understand the differences between SEE measurements and the radiances inferred from GUVI airglow data.

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