Table 6.
The True Positive Rate (TPR), False Positive Rate (FPR) and True Negative Rate (TNR) for different QCs of RODCCS.
| Variables | QC checks | ||||||
|---|---|---|---|---|---|---|---|
| Location | Depth | Constant value | Value range | Vertical gradient | Time reversal | ||
| Salinity (psu) | TPR | 0.00% | 0.32% | 0.32% | 0.00% | 6.67% | 12.43% |
| FPR | 0.00% | 0.87% | 4.83% | 0.00% | 0.22% | 6.32% | |
| TNR | 100.00% | 99.13% | 95.17% | 100.00% | 99.78% | 93.68% | |
| DO (µmol/L) | TPR | 0.00% | 0.35% | 2.10% | 0.00% | 6.88% | 10.27% |
| FPR | 0.00% | 0.89% | 0.73% | 0.00% | 0.62% | 5.66% | |
| TNR | 100.00% | 99.11% | 99.27% | 100.00% | 99.38% | 94.34% | |
| Silicate (µmol/L) | TPR | 0.00% | 1.10% | 5.80% | 0.00% | 0.00% | 12.69% |
| FPR | 0.00% | 0.95% | 2.32% | 0.00% | 0.04% | 5.06% | |
| TNR | 100.00% | 99.05% | 97.68% | 100.00% | 99.96% | 94.94% | |
| Nitrate (µmol/L) | TPR | 0.00% | 0.21% | 6.13% | 0.00% | 1.48% | 10.17% |
| FPR | 0.00% | 1.00% | 2.28% | 0.00% | 1.31% | 6.22% | |
| TNR | 100.00% | 99.00% | 97.72% | 100.00% | 98.69% | 93.78% | |
| Phosphate (µmol/L) | TPR | 0.00% | 0.46% | 10.64% | 0.00% | 0.06% | 10.46% |
| FPR | 0.00% | 0.93% | 10.20% | 0.00% | 0.35% | 5.98% | |
| TNR | 100.00% | 99.07% | 89.80% | 100.00% | 99.65% | 94.02% | |