Abstract : 3N.12
FLYSAFE NG-ISS evaluation using severe weather high resolution simulations

Stéphanie Pradier-Vabre, Stéphane Sénési, Christian Pagé, Olivier Caumont, Agathe Drouin, Véronique Ducrocq, Patrick Josse, Isabelle Bernard-Bouissières, Yann Guillou
stephanie.pradier@cnrm.meteo.fr
GAME/CNRM (Météo-France, CNRS)

FLYSAFE is an Integrated Project of the 6th framework of the European Commission aiming at improving flight safety through the development of a Next Generation Integrated Surveillance System (NGISS). The NGISS will provide information to the pilot on a number of external hazards, with particular emphasis on weather, air traffic and terrain. One of its advantage will be the capability of displaying data about all three hazards on a single screen, facilitating rapid pilot assessment of the situation.

In order to improve the accuracy of warnings provided to aircraft in flight, specialised tools for generating nowcasts of atmospheric hazards are under development: the Weather Information Management Systems (WIMSs). Four types of WIMSs feeding the NGISS were defined, each addressing one hazard: clear air turbulence, thunderstorms (CB), icing (ICE), and wake vortices. These products are generated by on-ground systems from observations and model forecasts. Through the Ground Weather Processors (GWP), they will supply information specifically relevant to each flight on three scales (global, regional and in the so-called Terminal Manoeuvring Area (TMA, area centered on airports)).

Meteo-France activities in the scope of FLYSAFE reside in the development of WIMSs dedicated to icing (TMA scale), to thunderstorms (TMA plus regional scales) and to clear-air turbulence (regional scale), as well as in the development of the GWP. Meteo-France will also deliver simulated weather scenarios in order to evaluate the NGISS with regards to both the atmospheric conditions during the flight and outputs of the CB and ICE WIMSs. With this aim in view, high resolution simulations were performed with the mesoscale model Méso-NH for two cases of heavy precipitations in the vicinity of airports. One of them, presented here, occurred on the 20th of September, 1999 during the Mesoscale Alpine Program (MAP-IOP2B). The site of interest is the Innsbruck airport located in a valley in the Alps heart