MERCATOR OCEAN JOURNA, 
SEPTEMBER 2021 
Region 1 
EAN ; 0.012 0.011 
Region 7 8 9 ' 10 
OR —z—. | A 0552 2 
EAN } 0.04 | 0.009 !*_ 0.055 0.07 
0.15 
11 
-0.07 
£ 
0.014 
Japıe 1: Bias log10 statistic for Chlorophyll obtained for BS-BIO NRT when considering the observation-model prediction pairs, for the 
different regions (1 to 11) 
1.4 BS-MFC Waves 
Black Sea wave products were included in catalogue at the 
very beginning of the Copernicus Marine Service. Despite 
this short experience, the BS-MFC managed to provide 
state-of-the-art wave modelling solutions (analysis, 
forecast and reanalysis) as other MFCs since 2016. The 
nominal product for BS-WAV NRT [13] provides analysis 
and 10-days forecast every day, as hourly instantaneous, 
with nominal start of the forecast at 12:00UTC for the most 
relevant wave variables, such as: 
significant wave height, wave mean period and wave 
direction, 
stokes drifts, 
wind wave significant height, wind wave mean period 
and direction, 
primary and secondary swell. 
The model is solved on the same grid and uses the same 
atmospheric forcing as the BS-PHY NRT. Since December 
2020, the modelling framework has been newly upgraded 
to the state-of-the art WAM Cycle 6.0, which includes new 
dissipation terms parameterisations of [14,15]. The model 
efficiency has been significantly Improved through: 
-Iimplementations of the new 2D decomposition of the 
model area for the MPI, 
- shallow water wave representations, 
- providing new parameters wave height and crest 
height [16]. 
The BS-WAV NRT system is now offline coupled with BS 
DHY NRT using hourly means surface currents and water 
depths. Figure 6 shows examples for validation of the BS 
WAV NRT and MY products against different satellite data.