Intercomparison of Single-Column Numerical Models for the Prediction of Radiation Fog

• DOI: 10.1175/jam2475.1
• Publication Date: 2007-04-27T15:18:12Z
• Authors: Thierry Bergot; Enric Terradellas; Joan Cuxart; Antoni Mira; Olivier Liechti; Mathias Mueller; Niels Woetmann Ni...
• Keywords: 13. Climate action; Air traffic; Predicción numérica; Numerical weather prediction; 01 natural sciences; Radiation fog; Niebla; 0105 earth and related environmental sciences

Abstract The short-term forecasting of fog is a difficult issue that can have large societal impact. Radiation appears in the surface boundary layer, and its evolution driven by interactions between lower layers atmosphere. Current NWP models poorly forecast life cycle fog, improved are needed before improving prediction fog. Six numerical model simulations compared for two cases from Paris-Charles de Gaulle (Paris-CdG) field experiment. This intercomparison includes both operational research models, which significantly different vertical resolutions physical parameterizations. main goal this to identify capabilities various accurately. An attempt made reasons behind differences among models. reveals considerable exist layer onset, particularly with light winds. lower-resolution crudely nocturnal inversion, strong inversion at top soil further illustrates importance accurate parameterizations dew deposition gravitational settling on