Impacts on the Thermosphere of the Short Term Variability of the Solar EUV and XUV Spectral Irradiance Measured by SDO-EVE

Details Impacts on the Thermosphere of the Short Term Variability of the Solar EUV and XUV Spectral Irradiance Measured by SDO-EVE Impacts on the Thermosphere of the Short Term Variability of the Solar EUV and XUV Spectral Irradiance Measured by SDO-EVE

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsa24a..05e&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SA24A-05

Astronomy and Astrophysics

Astrophysics

[0355] Atmospheric Composition And Structure / Thermosphere: Composition And Chemistry, [7538] Solar Physics, Astrophysics, And Astronomy / Solar Irradiance, [7549] Solar Physics, Astrophysics, And Astronomy / Ultraviolet Emissions

Scientific paper

The Extreme ultraviolet Variability Experiment (EVE) on the Solar Dynamics Observatory (SDO) has been observing the extreme ultraviolet (EUV) and soft X-ray (XUV) spectral irradiance of the Sun shortward regularly since May 2010. The EVE instrument measures from 5 to 105 nm at 0.1 nm resolution, with select broad bands at 0-5 nm, 121.6 nm, and other wavelengths in the EUV, with 10-second or better cadence. While solar activity has been relatively low in the time since the launch of SDO, EVE has quantified heretofore unobserved variability in the EUV and XUV spectral irradiance during both flaring and non-flaring solar conditions. This paper will present that variability and explore the impacts on the thermosphere using a one-dimensional photochemical model and a three dimensional coupled ionosphere thermosphere model.

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