Weather Research and Forecasting modeling system (WRF)

The WRF model version 4.0.1, with augmented cloud microphysics (Sotiropoulou et al., ACP, 2021 and Georgakaki et al., ACPD, 2021) is used for non-hydrostatic cloud-resolving simulations of the conditions at Mt.Helmos and the surrounding region. The model has been setup to run with three two-way nested domains, with a respective horizontal resolution of 12, 3 and 1 km. The ERA5 reanalysis dataset is used to initialize the model and provide the lateral forcing at the edge of the 12-km resolution domain every 6 hours. Static fields at each model grid point come from default WRF pre-processing system datasets, with a resolution of 30″ for both the topography and the ‘land use’ fields. The MODIS-based dataset is used for land cover. Regarding the physics options chosen to run WRF simulations, we follow the approach outlined in Georgakaki et al., ACPD, 2021.