Open Access
Table 3
Autoscaling results of the oblique ionograms data set of 549 ionograms recorded between September 25, 2015 and October 18, 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 | 7 | 1.5 | 51 | 58.6 |
| The operator scaled the MUF | 455 | 98.5 | 36 | 41.4 |
| Total | 462 | – | 87 | – |
| Scaled by OIASA | ||
|---|---|---|
| No. of cases | % | |
| Accurate | 215 | 47.3 |
| Acceptable (including accurate) | 372 | 81.8 |
| Poor | 83 | 18.2 |
| Total | 455 | – |
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