WW3-BRAMS MODEL COUPLING FOR OCEAN WAVES FORECASTING

Renata Sampaio da Rocha Ruiz, Rosio del Pilar Camayo Maita, Haroldo Fraga de Campos Velho, Saulo Freitas, Valdir Innocentini

Abstract


A version of the coupled ocean waves WaveWatch III (WW3) model with mesoscale meteorological model BRAMS is presented. The WW3 is a model for waves forecasting. The BRAMS model is used for numerical weather prediction over South America, with horizontal resolution of 5 km. Both models are executed operationally by the CPTEC-INPE. The boundary conditions for the BRAMS model are provided by the global atmospheric circulation model of the CPTEC-INPE. The simulation with BRAMS for14/Oct/2014 generated a wind field with better agreement with the observations (satellite Metop-A, ASCAT sensor) to the coast of southeastern Brazil) than the field wind generated by the SFM model. The simulation with wind field generated by BRAMS produces higher waves than ones predicted with GFS wind field.


Keywords


Wave model WaveWatch III. Atmospheric model BRAMS. GFS atmospheric model. Model coupling. Mesoscale simulation.



DOI: https://doi.org/10.5902/2179460X20283

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