Open Access
Table 2
The number of epochs considered in SEAs for various reference series.
| Reference series | Threshold | # of epochs |
|---|---|---|
| IntDst | −50 nT | 138 |
| IntDst | −40 nT | 172 |
| IntDst | −30 nT | 221 |
| IntDst | −25 nT | 222 |
| Int(d(SYM-H)/dt) | −50 nT | 154 |
| Int(d(SYM-H)/dt) | −40 nT | 191 |
| Int(d(SYM-H)/dt) | −30 nT | 218 |
| Int(d(SYM-H)/dt) | −25 nT | 231 |
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