Physics
Scientific paper
May 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982georl...9..587r&link_type=abstract
Geophysical Research Letters, vol. 9, May 1982, p. 587-590.
Physics
58
Irradiance, Solar Instruments, Solar Mesosphere Explorer, Solar Radiation, Solar Spectra, Ultraviolet Radiation, Diurnal Variations, Solar Rotation, Spectral Resolution, Sunspots
Scientific paper
Beginning on October 13, 1981 a two channel spectrometer aboard the Solar Mesosphere Explorer has been obtaining daily measurements of full disc solar irradiance. These observations cover the spectral interval 120 to 305 nm with approximately .75nm spectral resolution. The relative accuracy of the measurements from day to day over the first three solar rotations is approximately 1%. In this report, a description is presented of analyses of Lyman-alpha, the integrated Schumann-Runge continuum (130-175nm), and the integrated Schumann-Runge bands (175 to 190nm). All three show a clear variability related primarily to the 27-day solar rotation period. Correlations of these three values of solar irradiance to ground-based indices of solar activity, 10.7cm flux and sunspot number, are presented.
Barth Charles A.
Lawrence Mark G.
London Julius
Mount George H.
Rottman Gary J.
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