Evaluation of the WRF-ARW model during an extreme rainfall event: Subtropical storm Guará

نویسندگان

چکیده

This study simulates an unusual extreme rainfall event that occurred in Salvador city, Bahia, Brazil, on December 9, 2017, which was named subtropical storm Guará and had precipitation of approximately 24 mm within less than 1 h. Numerical simulations were conducted using the Weather Research Forecasting (WRF) model over three domains with horizontal resolutions 3, km. Different combinations seven microphysics, cumulus, planetary boundary layer schemes evaluated based their ability to simulate hourly during this event. Statistical indices (MB = –0.69; RMSE 4.11; MAGE 1.74; r 0.55; IOA 0.66; FAC2 0.58) time series plots showed most suitable configurations for weather Mellor-Yamada-Janjić, Grell-Freitas, Lin formulations layer, microphysics schemes, respectively. The results compared data measured at meteorological stations located city. WRF simulated well arrival occurrence a tropical coastal region, considering region already has intense convective characteristics is constantly influenced by sea breezes, could interfere compromise performance simulations.

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ژورنال

عنوان ژورنال: Atmosfera

سال: 2022

ISSN: ['0187-6236', '2395-8812']

DOI: https://doi.org/10.20937/atm.52977