Wind waves modeling at small fetches: influence of drag coefficient parameterization

Kuznetsova, A.; Baydakov, G.; Troitskaya, Y.

Авторы: Kuznetsova Alexandra, Baydakov Georgy, Troitskaya Yuliya
Сборник: https://2024.medgu.org/index.php?p=program
Тезисы
Год издания: 2024
Место издания: Barcelona, Spain
Аннотация: To date, a number of numerical spectral models of wind waves are developed, the main ones being WAVEWATCH III, WAM, SWAN. All models show good agreement with the measured data for open ocean conditions. The models are developed for open seas and oceans and demonstrate good forecast results for it. However, also for all models there is a problem of predicting waves at short fetches. The greatest errors in calculations by wave models of the world ocean are observed in the Mediterranean Sea, Black Sea, and in the coastal zone. The fact is that the modeling of surface waves at short fetches should take into account their features associated, first of all, with more intense wind input.We performed calculations of surface waves in the coastal zone and on small reservoirs using a new parameterization of the surface drag coefficient obtained as a result of a series of measurements on the Gorky Reservoir. An analysis of the obtained parameterization is carried out depending on the wave fetch. The advantage of using this parameterization at small fetches is demonstrated.Acknowledgements. The work was supported by FSTP project “Study of processes in the boundary layers of the atmosphere, ocean and terrestrial waters and their parameterization in Earth system models” within the project “Improvement of the global world-level Earth system model for research purposes and scenarios forecasting of climate change”.
Добавил в систему: Кузнецова Александра Михайловна

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