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Detailed Reference Information |
Bailey, S.M., Woods, T.N., Barth, C.A. and Solomon, S.C. (1999). Measurements of the solar soft X-ray irradiance from the Student Nitric Oxide Explorer. Geophysical Research Letters 26: doi: 10.1029/1999GL900236. issn: 0094-8276. |
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Beginning on March 11, 1998, the Student Nitric Oxide Explorer (SNOE) satellite has made daily observations of the solar soft x-ray irradiance. These measurements are carried out by a multi-channel photometer system utilizing x-ray sensitive photodiodes with individual thin film filters. Current from the photodiodes is analyzed in terms of a solar reference spectrum in order to determine solar irradiances. The irradiances from 2 to 10 nm vary between 0.15 and 0.40 ergs cm-2 s-1 from March 11 to July 19, 1998 while the solar 10.7 cm fluxes varied between 85 and 140¿10-22 W m-2 Hz-1. A 27-day periodicity is observed with variations in the soft x-ray irradiance on the order of a factor of two. The measured irradiances are shown to be correlated with the solar 10.7 cm flux but only mildly so with the GOES-8 0.1 to 0.8 nm solar fluxes. ¿ 1999 American Geophysical Union |
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BACKGROUND DATA FILES |
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Abstract |
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Keywords
Atmospheric Composition and Structure, Thermosphere—energy deposition, Solar Physics, Astrophysics, and Astronomy, Solar irradiance, Atmospheric Composition and Structure, Middle atmosphere—energy deposition, Solar Physics, Astrophysics, and Astronomy, X rays, gamma rays, and neutrinos |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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