Open Access
Table 8.
Overall Short term effects.
| NO | Year | Max Ap and date | No. of days with Ap ≥ 100 | Failure days with Ap ≥ 100 | Lowest Dst and date | No. of days with Dst ≤ –100 | Failure days with Dst ≤ –100 |
|---|---|---|---|---|---|---|---|
| 1 | 1989 | 249/13.03 | 5 | 1 | –225/14.3 | 11 | 1 |
| 2 | 1990 | 124/10.04 | 2 | 0 | –153/10.04 | 5 | 1 |
| 3 | 1991 | 196/05.06 | 11 | 3 | –194/25.03 | 12 | 2 |
| 4 | 1992 | 179/10.05 | 1 | 0 | –176/09.02 | 9 | 1 |
| 5 | 1993 | 91/13.09 | 0 | 0 (but one failure during max Ap day) | –115/05.04 | 2 | 1 |
| 6 | 1994 | 100/17.04 | 1 | 0 | –105/17.04 | 1 | 0 |
| 7 | 1995 | 100/07.04 | 1 | 1 (with two incidents) | –82/07.04 | 0 | 0 (but one failure during lowest Dst day) |
| 8 | 1996 | 38/21.3,29.8,19.10,22.10 | 0 | 0 | –57/23.10 | 0 | 0 |
| 9 | 1997 | 59/23.11 | 0 | 0 (but one failure during max Ap day) | –88/23.11 | 0 | 0 (but one recorded failure during lowest Dst day) |
| 10 | 1998 | 144/27.08 | 3 | 0 | –129/27.08 | 4 | 0 |
| 11 | 1999 | 91/22.10 | 0 | 0 | –134/22.10 | 1 | 0 |
| 12 | 2000 | 164/15.07 | 3 | 0 | –173/16.07 | 5 | 1 |
| 13 | 2001 | 192/31.03 | 3 | 0 (but one failure on 01.04) | –211/31.03 | 11 | 1 |
| 14 | 2002 | 78/23.05 | 0 | 0 | –120/02.10 | 5 | 0 |
| 15 | 2003 | 204/29.10 | 6 | 0 | –221/30.10 | 4 | 0 |
| 16 | 2004 | 186/27.07 | 5 | 0 (but one failure on 29.07) | –210/08.11 | 5 | 0 (but three failures 2–3 days after solar storms) |
| 17 | 2005 | 102/24.08 | 2 | 1 | –103/15.05 | 1 | 0 |
| 18 | 2006 | 94/15.12 | 0 | 0 | –116/15.12 | 1 | 0 |
| 19 | 2007 | 34/23.05 | 0 | 0 | –39/24.03 | 0 | 0 |
| 20 | 2008 | 36/27.03 | 0 | 0 | –47/09.03 | 0 | 0 |
| 21 | 2009 | 24/22.07 | 0 | 0 | |||
| 22 | 2010 | 55/05.04 | 0 | 0 |
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