Recommended citation: Coll-Hidalgo, P.; Pérez-Alarcón, A.; González-Jardines, P. M.; Góngora-González, C.M.; Díaz-Zurita, A. (2021). Evaluación de esquemas de microfísica del WRF-ARW en el pronóstico de cizalladura del viento a bajo nivel en el aeropuerto internacional José Martí: Casos de estudio de Tormentas Convectivas. In proceedings of Convención Meteorología 2021, Havana, Cuba 6-10 December 2021, pp 220. ISBN: 978-959-7167-662.

Abstact

A sensitivity study is performed with Lin, Morrison 2-moment, WSM5, and WSM6 microphysics schemes for the numerical forecast of the low-level wind shear derived from storms at “José MartíÏnternational Airport using the Weather Research and Forecasting model. As case studies, we select four storms associated with synoptic patterns that cause dangerous conditions at this aerodrome. The simulations are made for several atmosphere low levels. The influence of obstacles of comparable height with the atmospheric low-levels was taken into account to obtain the wind fields with mass consistent correction. In this paper, the evaluation process is focus on precipitation. The schemes did not show bigger diferences among themselves. The best performance for precipitation forecast was obtained with WSM5 in rainy season (May-October) and Lin in dry season (November-April). Also, WSM5 and Lin show advantage in Pearson correlation coefficient between the wind shear speed in the 0-2000 ft layer obtained from the Air Force Weather Agency-diagnostics module and the calculated in this investigation. For LLWS sensitivity, results indicate that each hydrometeor particle concentration predicted by tested microphysics has an influence on vertical wind profiles, particularly, for low-levels. The comparative analysis with Rapid Refresh model analysis data shows that the numerical LLWS forecast is a strongly dependent on spatial resolution, physics options and domain extension. WSM5 and Lin seems the best options for microphysics scheme, although that is not conclusive.