Zahra Sahlaoui

Moroccan meteorology · Meteorological research centre

Extreme Precipitation is a weather hazard that affects the society directly and harmfully. Because of the process involved in the formation of precipitation at several spatial and temporal scales, the forecast of precipitation is still challenging the weather models. The aim of this work is to evaluate the impact of initial condition on the modelli...

The ability of precipitation assimilation is assessed in a convective scale model in order to improve the precipitation forecast for a Mediterranean heavy rain event that took place on November 4, 2017. The proposed assimilation method is based on a two‐step approach. First, one‐dimensional variational (1D‐Var) assimilation is applied on hourly acc...

This study focused on investigating the impact of gauge adjustment on the rainfall estimate from a Moroccan C-band weather radar located in Khouribga City. The radar reflectivity underwent a quality check before deployment to retrieve the rainfall amount. The process consisted of clutter identification and the correction of signal attenuation. Ther...

Several model configurations are used in Morocco for numerical weather prediction (NWP). The aim of this work is to verify the impact of resolution on the quality of models forecast, particularly the precipitation field. Three model configurations are tested with 7.5 km, 5 km and 2.5 km resolution. A rainy event over the North-East of Morocco is st...