ECMWF maintains an archive of monthly means data from the wave model archive. Since the resolution and internal representation of the archive may change according to changes in ECMWF's operational practice, data services associated with these data sets include the provision of interpolation to requested resolutions, representation and areas.

The monthly mean wave model archive is subdivided into two data sets:

The data sets are based on quantities analysed or computed within the ECMWF data assimilation scheme or from forecasts based on these analyses.

The Wave archive contains analysis and forecast monthly mean data from the operational global wave model.

The archive is currently maintained using the WMO FM 92-IX Ext GRIB (grid in binary) form of data representation, with ECMWF local versions of GRIB Table 2. All fields of data are global within the archive.

A full extraction service is supported, enabling users to obtain sub-areas of data and data at various resolutions on regular Gaussian or latitude/longitude grids, or as spherical harmonics with selected triangular truncation. All extracted data are delivered using the GRIB representation.

05.09.2008