CAOSP abstracts, Volume: 29, No.: 2, year: 1999

Abstract: We present the Fe XIV 530.3 nm (green line) coronal index (CI) of solar activity for 1998. A systematic increase of CI was observed from January to October 1998. Toward the end of the year the rate of increase slowed remarkably. A comparison of CI with similar indices of solar activity (2800 MHz radio flux, the Wolf sunspot number and the SUSIM Mg II index) shows a good correlation.

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