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Mediterranean Wave Analysis
Data Sets
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Description :
- period supported - 1 July 1992 to current date;
- fields are uninitialised analyses for 0000 UTC, 0600 UTC, 1200 UTC and 1800 UTC each day;
- each parameter is stored as a field of grid point values, in latitude rows starting at the north and working southwards; within each row values run from west to east;
- data are stored in FM 92 GRIB using sufficient bits to ensure that the values represented can be retrieved to an accuracy consistent with the analysis method used;
The changes to this data set are as follows:
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1 July 1992 |
Data is represented on a 0.5° latitude/longitude grid The area is 46.0° N to 30.0° N, 6.0° W to 36.0° E Fields available are significant wave height, mean wave direction, peak period of 1D spectra, mean wave period |
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30 July 1992 |
Fields added are coefficient of drag with waves, significant height of wind waves, mean direction of wind waves, mean period of wind waves, significant height of primary swell, mean direction of primary swell, mean period of primary swell |
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20 June 1995 |
Data is represented on a 0.25° latitude/longitude grid The area is 66.0° N to 30.0° N, 6.0° W to 42.0° E |
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7 May 1996 |
Field added is mean square slope of waves |
| 26 October 1998 |
Field added is 10 metre wind speed. Field added is 2-D wave spectra which is produced four times per day. Note that proper interpolation is not carried out for this field. Interpolated values are just those from the nearest archive data point. |
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27 October 1998 |
The area is 81.0° N to 9.0° N, 98.0° W to 42.0° E |
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13 July 1999 |
Fields added are altimeter wave height, altimeter corrected wave height, altimeter range relative correction. |
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27 June 2000 |
Fields added are mean wave period first moment, mean wave period second moment, wave spectral directional width, mean wave period first moment wind waves, mean wave period second moment wind waves, wave spectral directional width wind waves, mean wave period first moment for swell, mean wave period second moment for swell, wave spectral directional width for swell |
| 7 October 2003 | Fields added are wave surface kurtosis, Benjamin-Feir index, wave spectral peakedness. |
Warning : |
| There has been a problem with the wave analysis since the introduction of ERS data on 15 August 1993. The size of waves of low magnitude (less than 1 meter) may be too high and the corresponding mean periods too high. This problem is largely confined to enclosed or semi-enclosed seas such as the Mediterranean Sea, Black Sea, Baltic Sea, the Gulf of Mexico and the East China Sea. A correction for this problem was introduced on 14 January 2003 |
 | 13.11.2003 |
 | © ECMWF |
