A new single model configuration (AUSWAVE-G3) will replace the legacy global (AUSWAVE-G) and regional (AUSWAVE-R) systems since
Features of this upgrade include:
Incorporating the latest version of Wavewatch III® (WW3) - version 6.0.7;
Spherical Multiple Cell Grid with two tier refinement
12km and 6km at low latitudes, and
25km and 12km at high latitudes beyond 55oN and 55oS in the zonal (east-west) direction, 12km and 6km remain in the meridional (northsouth) direction);
An increase in spectral resolution from 24 directions and 25 frequency bins to 30 directions and 28 frequency bins;
Interpolation from SMC grids to regular grids at 12.5km for the global domain and 6.25km for the Australian domain;
Newly the runs at 6 and 18 UTC are provided too but with shorter forecast length (up to +156 hours);
Anchor
metno
metno
METNO
Info
icon
false
title
11-11-2021 METNO upgrade
The new version of the WAM code is Cycle 4.7 (before it was Cycle 4.5) has been implemented since 12Z run on
The main differences with respect to the previous version are updated physics, propagation of waves under sea ice, and a correction for the unrealistic growth of the waves in very high winds. Other differences are: a reformulation of the mean wavenumber and mean frequency as well as a new formulation for detecting freak waves. Also, wave refraction by bottom topography is included which was absent in the previous set-up.