 ds123.1 GRIB Parameter TableThe following 23 parameters from ECMWF Parameter Code Table 140 are included in this dataset: | Parameter Code | Short Name | Description | Units |
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| 220 | MP1 | Mean wave period based on first moment | s |
| 221 | MP2 | Mean wave period based on second moment | s |
| 222 | WDW | Wave spectral directional width | |
| 223 | P1WW | Mean wave period based on first moment for wind waves | s |
| 224 | P2WW | Mean wave period based on second moment for wind waves | s |
| 225 | DWWW | Wave spectral directional width for wind waves | |
| 226 | P1PS | Mean wave period based on first moment for swell | s |
| 227 | P2PS | Mean wave period based on second moment for swell | s |
| 228 | DWPS | Wave spectral directional width for swell | |
| 229 | SWH | Significant wave height | m |
| 230 | MWD | Mean wave direction | deg |
| 231 | PP1D | Peak period of 1D spectra | s |
| 232 | MWP | Mean wave period | s |
| 233 | CDWW | Coefficient of drag with waves | |
| 234 | SHWW | Significant height of wind waves | m |
| 235 | MDWW | Mean direction of wind waves | deg |
| 236 | MPWW | Mean period of wind waves | s |
| 237 | SHPS | Significant height of primary swell | m |
| 238 | MDPS | Mean direction of primary swell | deg |
| 239 | MPPS | Mean period of primary swell | s |
| 244 | MSQS | Mean square slope of waves | |
| 245 | WIND | 10 metre wind speed | m s-1 |
| 251 | 2DFD | 2D wave spectra (single) | m2 s rad-1 |
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