Table 1 Semiannual maxima and minima of storm parameters
From: Automatic selection of Dst storms and their seasonal variations in two versions of Dst in 50 years
Storm type | Number of storms | Average DstMin (nT) | Average ⟨DstMP⟩ (nT) | |||
|---|---|---|---|---|---|---|
Kyoto (%) | USGS (%) | Kyoto (%) | USGS (%) | Kyoto (%) | USGS (%) | |
Annual mean | 63 | 49 | −108.9 | −110.7 | −63.5 | −62.8 |
March | 82 (+30) | 70 (+42) | −122.7 (+13) | −128.6 (+16) | −73.9 (+16) | −67.9 (+8) |
October | 78 (+24) | 60 (+22) | −128.1 (+18) | −130.7 (+18) | −74.9 (+18) | −78.4 (+25) |
June | 49 (−22) | 40 (−18) | −90.5 (−17) | −91.1 (−18) | −54.4 (−14) | −53.8 (−14) |
December | 46 (−27) | 32 (−35) | −88.2 (−19) | −87.4 (−21) | −48.2 (−24) | −51.6 (−18) |