Numerical modelling of wave-current interactions in the Sea of Marmara during a wind storm event (Feb 2009)
Jacopo Chiggiato
NURC - Nato Undersea Research Centre
(Abstract received 08/13/2009 for session E)
ABSTRACT
The talk describes a NURC modeling effort for the TSS08-TSS09 trials in the Marmara Sea (small and deep basin interconnecting the Mediterranean Sea and the Black Sea). The two way coupled ROMS/SWAN model is used to simulate wave-current interactions during a wind storm event in February 2009. Several realistic model experiments have been carried out providing a sensitivity analysis of physics and parameterizations associated to wave-current interaction implemented in ROMS/SWAN. These implementations in particular are the Mellor (2003) equation for the inclusion of radiation stress and stokes drift in the momentum balance equation, the impact of wave age dependency in the momentum stress parameterization and the inclusion of wave breaking as TKE injection as surface boundary condition of the Generic Length Scale turbulence model. Model performance is eventually assessed using skill scores based on lagrangian drifters as well as other available observations.
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