Table 1 Geomagnetic storms (minimum Dst < −100 nT) in the rising–maximum phases of cycle 24 with their characteristics
From: Geomagnetic storms of cycle 24 and their solar sources
No. | Date | Min. Dst (nT) | Type | Solar sources | Speed at 1AU (km/s) |
|---|---|---|---|---|---|
1 | 2011/08/05 17:50–2011/08/06 15:00 | −115*1 | SC | Full halo CME (sheath) | 611 |
2 | 2011/09/26 12:35–2011/09/28 17:00 | −118*1 | SC | Full halo CME (sheath) | 704 |
3 | 2011/10/24 18:31–2011/10/25 21:00 | −147*1 | SC | Full halo CME (sheath, MC) | 534 |
4 | 2012/03/08 11:03–2012/03/10 19:00 | −145*2 | SC | Full halo CME (sheath, MC) multiple | 737 |
5 | 2012/04/23 03:20–2012/04/26 16:00 | −120*2 | SC | Partial halo CME (sheath, MC) | 394/720 |
6 | 2012/07/14 18:10–2012/07/17 12:00 | −139*2 | SC | Full halo CME (sheath, MC) | 667 |
7 | 2012/09/30 11:32/23:05–2012/10/01 16:00 | −122*2 | SC | Full halo CMEs (sheath, MC) multiple | 410 |
8 | 2012/10/08 05:16–2012/10/09 24:00 | −109*2 | SC | Partial halo CME (sheath, MC) multiple | 447/526 |
9 | 2012/11/12 23:12–2012/11/14 19:00 | −108*2 | SC | Partial halo CME (sheath, MC) multiple | 467 |
10 | 2013/03/17 06:00–2013/03/18 12:00 | −132*2 | SC | Full halo CME (sheath, MC) multiple | 725 |
11 | 2013/05/31 16:17–2013/06/02 21:00 | −119*2 | SC | (MC?) coronal hole | 402/774 |
12 | 2014/02/18 13:54–2014/02/19 23:00 | −116*2 | GC | Partial halo CME (MC) multiple | 530 |
13 | 2015/03/17 04:45–2015/03/21 15:00 | −223*2 | SC | Partial halo CME (sheath, MC) coronal hole? | 683 |
14 | 2015/06/22 18:33–2015/06/24 12:00 | −204*3 | SC | Full halo CME (sheath, MC) multiple | 742 |
15 | 2015/10/07 04:24–2015/10/10 02:00 | −124*3 | GC | (MC) coronal hole | 460/775 |
16 | 2015/12/19 16:17–2015/12/22 02:00 | −155*3 | SC | Full halo CME (MC) | 497 |
17 | 2015/12/31 00:49–2016/01/01 16:00 | −110*3 | SC | Partial halo CME (MC) | 485 |