Open Access
Table 1
Autoscaling results of the oblique ionograms data set of 576 ionograms recorded between May 2, 2015 and May 24, 2015. Accurate cases (ǀMUFOISA−MUFOperatorǀ≤0.5 MHz) are a subset of acceptable cases (ǀMUFOISA−MUFOperatorǀ≤1.5 MHz).
| Scaled by OIASA | Discarded by OIASA | |||
|---|---|---|---|---|
| No. of cases | % | No. of cases | % | |
| The Operator did not scale the MUF | 22 | 4.0 | 14 | 77.8 |
| The operator scaled the MUF | 536 | 96.0 | 4 | 22.2 |
| Total | 558 | – | 18 | – |
| Scaled by OIASA and the operator | ||
|---|---|---|
| No. of cases | % | |
| Accurate | 166 | 31.0 |
| Acceptable (including accurate) | 367 | 68.5 |
| Poor | 169 | 31.5 |
| Total | 536 | – |
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