National Network of Regional Coastal Monitoring Programmes
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Wave Spectra for 19/01/2025 05:00(i) GMT
Note that these are real-time data and are not quality-controlled. Long-range graphs are plotted from a randomised subsample of half-hourly data.
St Mary's Sound
Wave Spectra for 19/01/2025 05:00(i) GMT
Wave Spectra page developed in conjunction with Fugro GB Limited.
Wave Spectra page developed in conjunction with Fugro GB Limited.
| Sea and Swell Summary for (19/01/2025 05:00(i) GMT) | |
|---|---|
| Significant Wave Height (m) | 1.21 |
| Wave zero up crossing period (Spectrum Tz) (s) | 4.2 |
| Wind Wave Significant Wave Height (m) | 1.13 |
| Wind Wave Peak Period (s) | 5.6 |
| Wind Wave Peak Period Direction (°) | 193 |
| Swell Significant Wave Height (m) | 0.44 |
| Swell Peak Period (s) | 8.3 |
| Swell Peak Period Direction (°) | 270 |
| % Swell | 13.2 |
Wave Spectra for date 19/01/2025 05:00(i):
| Frequency (Hz) | Period (s) | Normalised Energy | Energy |
|---|---|---|---|
| 0.04 | 25 | 0.013 | 0.008 |
| 0.06 | 16.7 | 0.014 | 0.009 |
| 0.08 | 12.5 | 0.177 | 0.11 |
| 0.1 | 10 | 0.432 | 0.268 |
| 0.12 | 8.3 | 0.658 | 0.408 |
| 0.13 | 7.7 | 0.405 | 0.252 |
| 0.14 | 7.1 | 0.47 | 0.292 |
| 0.15 | 6.7 | 0.49 | 0.304 |
| 0.16 | 6.3 | 0.686 | 0.426 |
| 0.165 | 6.1 | 0.686 | 0.426 |
| 0.17 | 5.9 | 0.715 | 0.444 |
| 0.175 | 5.7 | 0.959 | 0.596 |
| 0.18 | 5.6 | 1 | 0.621 |
| 0.185 | 5.4 | 0.794 | 0.493 |
| 0.19 | 5.3 | 0.644 | 0.4 |
| 0.195 | 5.1 | 0.592 | 0.368 |
| 0.2 | 5 | 0.58 | 0.36 |
| 0.21 | 4.8 | 0.671 | 0.417 |
| 0.22 | 4.5 | 0.46 | 0.286 |
| 0.23 | 4.3 | 0.568 | 0.353 |
| 0.24 | 4.2 | 0.414 | 0.257 |
| 0.26 | 3.8 | 0.592 | 0.368 |
| 0.28 | 3.6 | 0.45 | 0.28 |
| 0.3 | 3.3 | 0.315 | 0.195 |
| 0.32 | 3.1 | 0.206 | 0.128 |
| 0.4 | 2.5 | 0.078 | 0.048 |
| 0.48 | 2.1 | 0.029 | 0.018 |
