Table 1 Large GIC events measured between December 2005 and March 2008
Number | Date and time (UT) | Max. GIC of 1-s data (A) | Geomagnetic disturbances at Memanbetsu |
|---|---|---|---|
1 | 14 December 2006 at 23:55 | 3.85 | SC storm (max. ∆H = 272 nT) |
2 | 10 November 2006 around 10:04 | 2.23 | Gradual storm (max. ∆H = 143 nT) |
3 | 23 May 2007 at 10:40 | 1.81 | Positive bay |
4 | 30 November 2006 around 09:09 | 1.75 | Gradual storm (max. ∆H = 108 nT) |
5 | 9 July 2006 at 21:39 | 1.59 | Sudden impulse |
6 | 14 April 2006 around 10:15 | 1.58 | Gradual storm (max. ∆H = 157 nT) |
7 | 19 August 2006 around 14:22 | 1.52 | Gradual storm (max. ∆H = 103 nT) |