Estudio de diferentes parametrizaciones de actividad eléctrica y su evaluación con observaciones del GLM

A lightning forecast is vital for many activities and people's safety. This forecast is not simple because it is a process that occurs at scales that numerical models do not resolve. For this reason, the present work evaluates the performance of five parameterizations applied to the WRF model with convection allowed. Deterministic and ensemble forecasts from the Data Assimilation and Numerical Weather Forecasting System of the Argentinian National Meteorological Service (SAP.SMN) and GLM observations from November 2022 to April 2023 were used to generate and evaluate the relationships. All parameterizations were found to correctly represent different characteristics of the observed lightning during the analyzed period, while the one based on the ice content vertically integrated is which provides the best results. A sensitivity to the parameterization of the microphysics used in the model was also observed, but not with the parameterization of the boundary layer.