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Table 3
Estimates of the SEP-induced ion-pair production rate maxima (in units of ions (cm3 s)−1) and their corresponding altitudes (in units of km) of both historical extreme SEP events, the Carrington and AD775 events based on the spectral shapes of the February, 1956, August 1972, and October 1989 events.
| Altitude | Ionization | QSEP/QGCR | ||
|---|---|---|---|---|
| (km) | (cm−3 s−1) | (h = 64 km) | ||
| Carrington | Feb 1956 | 80 | 1.23 × 106 | 4.86 × 103 |
| Aug 1972 | 86 | 1.16 × 106 | 11.85 | |
| Oct 1989 | 94 | 1.52 × 106 | 262.71 | |
| AD775 | Feb 1956 | 80 | 3.49 × 106 | 1.39 × 104 |
| Aug 1972 | 86 | 7.2 × 108 | 7.46 × 103 | |
| Oct 1989 | 94 | 2.98 × 107 | 5.14 × 103 | |
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