Table 2.
Assessed maximum effective dose rates at the altitude of 35 kft a.s.l. in a region with P c < 1 GV during GLE events. The columns depict: 1 – GLE number; 2 – GLE date; 3 – maximum effective dose rate due to solar protons; 4 – maximum NM increase with corresponding NM station; 5 – maximum NM increase at the sea level with the corresponding NM station. The station abbreviations and characteristics are given in Table 3. The footnotes in column 1 depict the corresponding bibliographic sources of the derived SEP spectra.
| GLE | Date | Max. E μSv h–1 | Max. NM increase, % | Max. NM increase (sea level) % |
|---|---|---|---|---|
| 51 | 23.02.1956 | ≈900–2980 | 5115 (LEED) | 5115 (LEED) |
| 81,2 | 04.05.1960 | 52 | 331 (SLPM) | 261 (CHUR) |
| 101 | 12.11.1960 | 12 | 156 (MTWS) | 108 (THUL) |
| 111 | 15.11.1960 | 135 | 283 (HEIS) | 283 (HEIS) |
| 131 | 18.07.1961 | 8 | 19 (THUL) | 19 (THUL) |
| 161 | 28.01.1967 | 7 | 25.6 (VSTK) | 21 (WLKS) |
| 191 | 18.11.1969 | 5 | 32.4 (VSTK) | 26.6 (WLKS) |
| 221 | 14.01.1971 | 16 | 38.6 (VSTK) | 31.7 (MCMD) |
| 251 | 07.08.1972 | 3 | 15.5 (SOPO) | 10.8 (MCMD) |
| 291 | 24.09.1977 | 2 | 10.9 (SOPO) | 8.9 (SNAE) |
| 301,3 | 22.11.1977 | 10–45 | 55.3 (SOPO) | 32.8 (GSBY) |
| 311,3,4 | 07.05.1978 | 21–35 | 214 (KERG) | 214 (KERG) |
| 321 | 23.09.1978 | 1.5 | 13.2 (SOPO) | 10.7 (SNAE) |
| 381,5 | 07.12.1982 | 7–15 | 56 (KERG) | 56 (KERG) |
| 391 | 16.02.1984 | 100 | 212 (SOPO) | 98 (GSBY) |
| 411 | 16.08.1989 | 5.5 | 24 (SOPO) | 15.5 (TERA) |
| 421,6 | 29.09.1989 | 22–93 | 397 (CALG) | 374 (THUL) |
| 431 | 19.10.1989 | 32 | 90 (SOPO) | 53 (SNAE) |
| 441,7 | 22.10.1989 | 34–92 | 193 (MCMD) | 193 (MCMD) |
| 451,8 | 24.10.1989 | 90–123 | 205 (SOPO) | 120 (TERA) |
| 471 | 21.05.1990 | 4.8 | 23.6 (THUL) | 23.6 (THUL) |
| 481 | 24.05.1990 | 8.3 | 52.3 (MTWS) | 131.3 (INVK) |
| 511 | 11.06.1991 | 3.4 | 9.2 (SOPO) | 8.0 (MWSN) |
| 521,9 | 15.06.1991 | 6–8 | 48 (SOPO) | 27.5 (KERG) |
| 551,10 | 06.11.1997 | 3.5–9 | 16.6 (SOPO) | 11.4 (OULU) |
| 591,11,12 | 14.07.2000 | 18–43 | 57.8 (SOPO) | 40.4 (THUL) |
| 601,13 | 15.04.2001 | 20–47.5 | 225 (SOPO) | 117.8 (NAIN) |
| 611 | 18.04.2001 | 2.6 | 24.1 (SOPO) | 18.3 (SNAE) |
| 651 | 28.10.2003 | 14.5 | 24.7 (MCMD) | 24.7 (MCMD) |
| 671,14 | 02.11.2003 | 11–24 | 36 (SOPO) | 21.9 (MCMD) |
| 691,15,16,17 | 20.01.2005 | 265–2910 | 4808 (SOPO) | 2649 (TERA) |
| 701,12,16,18 | 13.12.2006 | 45–73 | 92 (OULU) | 92 (OULU) |
| 7119,20 | 17.05.2012 | 5–25 | 17.3 (SOPO) | 16 (APTY) |
| 7221 | 10.09.2017 | 5.4 | 15.1 (DOMC) | 6 (FSMT) |
1(Vashenyuk et al., 2011); 2(Deeley et al., 2002); 3(Debrunner et al., 1984); 4(Lockwood et al., 1990a); 5(Cramp et al., 1997b); 6(Humble et al., 1991); 7(Cramp et al., 1997); 8(Lovell et al., 1998); 9(Smart et al., 1993); 10(Kravtsova and Sdobnov, 2016); 11(Bombardieri et al., 2006); 12(Mishev and Usoskin, 2016); 13(Bombardieri et al., 2007); 14(Kocharov et al., 2017); 15(Bieber et al., 2013); 16(Bütikofer et al., 2009); 17(Bombardieri et al., 2008); 18(Matthiä et al., 2009b); 19(Plainaki et al., 2014); 20(Mishev et al., 2014b, 2017); 21(Mishev et al., 2018).
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