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Quantitative errors of GPS-derived wave parameters under various sea states.
| Significant wave height | <1 m | 1 ∼ 1.5 m | 1.5 ∼ 2.0 m | >2.0 m | Average |
| bias | 4.5% | 4.0% | 4.5% | 3.6% | 4.2% |
| Mean wave period | 3 ∼ 4 s | 4 ∼ 5 s | 5 ∼ 6 s | >6 s | Average |
| bias | 5.1% | 4.1% | 4.3% | 4.0% | 4.4% |
