Intercomparison of SEM irradiances and solar indices

Details Intercomparison of SEM irradiances and solar indices Intercomparison of SEM irradiances and solar indices

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.508..197f&link_type=abstract

In: Proceedings of the SOHO 11 Symposium on From Solar Min to Max: Half a Solar Cycle with SOHO, 11-15 March 2002, Davos, Switze

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1

Euv, Irradiance, Sem, Soho

Scientific paper

Measurements from the Solar EUV Monitor (SEM), a component experiment of the Charge, Element, and Isotope System (CELIAS) aboard SOHO are compared with other coincident solar measurements and indices. Earlier studies have shown the strong correspondence between the Mg II core-to-wing ratio and SEM measurements. We extend these studies through comparisons with the F10.7 (cm) radio flux, X-rays, and energetic protons. Energetic protons from solar flares cause nearly all of the "spikes" in the SEM first order flux which is otherwise is correlated with the Mg II core-to-wing ratio index. By constrast, the central order channel correlates best with F10.7 and solar protons contribute only in a minor way. Components correlated with solar X-rays and the Mg II index also contribute to the SEM central order flux.

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