Abstract: At main international airports, air traffic safety and economic issues related to poor visibility conditions are crucial. Meteorologists face the challenge of supplying airport authorities with accurate forecasts of fog ...

Abstract: A 1D model adapted for forecasting the formation and development of fog, and forced with mesoscale parameters derived from a 3D limited-area model, was used to simulate three fog event observations made during the Lille ...

Abstract: To improve the forecast of dense radiative fogs, a method has been developed using a one-dimensional model of the nocturnal boundary layer forced by the mesoscale fields provided by a 3D limited-area operational model. The ...

Abstract: At Paris? international airport, named Roissy Charles de Gaulle (CdG), air traffic safety and management as well as economic issues related to poor visibility conditions are crucial. Meteorologists face the challenge of ...

Abstract: Because poor visibility conditions have a considerable influence on airport traffic, a need exists for accurate and updated fog and low-cloud forecasts. Couche Brouillard Eau Liquide (COBEL)-Interactions between Soil, ...

Abstract: sing a fog event approach, the local meteorological and synoptic characteristics of fogs that formed over the Grand Casablanca (GCB) region during a 9-yr period (2001?09) are investigated. A climatological study of fog, ...

Abstract: The feasibility of the recently proposed concept of adaptive observations is tested on a typical case of poorly forecast North Atlantic cyclogenesis. Only numerical tools are employed, no special observations. Although ...

Abstract: A case study of an eastern Atlantic cyclogenesis event is conducted. The focus is on the impact of aircraft data on both the analysis and forecast of the event. The case takes place between 1 and 3 February 1994 and involves ...

Abstract: A specific event, called a low-visibility procedure (LVP), has been defined when visibility is under 600 m and/or the ceiling is under 60 m at Paris-Charles de Gaulle Airport, Paris, France, to ensure air traffic safety ...

Abstract: Accurate short-term forecasts of low ceiling and visibility are vital to air traffic operation, in order to maximize the use of an airport. The research presented here uses specific local observations and a detailed numerical ...