COMPREHENSIVE FLARE INDEX (CFI)

The indicative of solar flare importance given by the sum of the following five components a) Importance of ionizing radiation as indicated by time- associated Short Wave Fade or Sudden Ionospheric Disturbance; (Scale 0-3) b) Importance of H-Alpha flare; (Scale 0-3) c) Magnitude of 10cm flux; (Characteristic of log of flux in units of 10**-22Watt/m**2/Hz) d) Dynamic spectrum; (Type II = 1, Continuum = 2, Type IV with duration > 10 minutes = 3) e) Magnitude of 200MHz flux; (Characteristic of log of flux in units of 10**-22Watt/m**2/Hz)

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