New Generation of Wave Forecast Models, Made in Australia

Prof. Alexander Babanin1

1University of Melbourne, , Australia

This major update of the physics of the third generation models took 15 years to complete and the effort is ongoing. New source terms for wind input, whitecapping dissipation, interaction of waves with adverse winds (negative input), swell attenuation, wave-bottom interactions, wave-ice interactions have been developed and implemented in official releases of WAVEWATCH-III and SWAN models. Physics and parameterisations for the new source functions are based on field experiments and observations, which allowed us to reveal features and processes previously unknown and dynamics not accounted for. A new source functions for nonlinear wave-wave interactions, including quasi-resonant (rogue-wave) interactions, and for wave-current interactions are also under way and will be outlined. For extreme Metocean conditions, physics of the wind input and whitecapping dissipation terms exhibit additional behaviours irrelevant or inactive at moderate weather.

Alexander V. Babanin is Professor in Ocean Engineering at the University of Melbourne, Australia. Qualifications: BSc (Physics), MSc (Physical Oceanography) (Lomonosov Moscow State University, Russia), PhD (Physical Oceanography) (Marine Hydrophysical Institute, Sebastopol, Russia). Worked as a Research Scientist in the Marine Hydrophysical Institute, as an academic In the University of New South Wales, ADFA, Canberra, The University of Adelaide, South Australia, Swinburne University of Technology, Melbourne. Areas of expertise, research and teaching, are wind-generated waves, maritime and coastal engineering, air-sea interactions, ocean turbulence and ocean dynamics, climate, environmental instrumentation and remote sensing of the ocean. These include extreme Metocean conditions, from tropical cyclones to Arctic and Antarctic environments. 280+ career total publications.

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