This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
SIGMA : System of Icing Geographic identification in Meteorology for Aviation
Technical Paper
2003-01-2085
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Icing is a very dangerous phenomenon in aeronautics. In order to help the forecasters to predict icing conditions, Meteo-France has developed a system for the identification of icing areas, named SIGMA (System of Icing Geographic identification in Meteorology for Aviation). This system is based on the combination of three different sources of data: an icing risk index calculated from Météo-France's numerical weather prediction model, the infra-red data from the geostationary Meteosat spacecraft, and Météo-France's operational centimetric radar network. This system has been verified in two manners. Firstly, an icing PIREP collection campaign was organized with French Air Force during one winter. The output of SIGMA together with the SIGMET messages were compared with the PIREPs. SIGMA showed encouraging detection rates. Then, last winter, a comparison by the forecasters between radiosoundings and the results of SIGMA has confirmed these good results.
Authors
Citation
Le Bot, C., "SIGMA : System of Icing Geographic identification in Meteorology for Aviation," SAE Technical Paper 2003-01-2085, 2003, https://doi.org/10.4271/2003-01-2085.Also In
References
- Bernstein, B 1997 “A regional climatology of freezing precipitation for the contiguous United States. Statistical verification of forecast icing risk indices” Proceedings Tenth Conference on Applied Climatology Reno, Nevada 20-24 October
- Bernstein, B.C. McDonough F. 2002 An Inferred Icing Climatology -Part II: Applying a Version of IIDA to 14-years of Coincident Soundings and Surface Observations 10 th Conference on Aviation, Range and Aerospace Meteorology Portland OR 13-17 May Amer. Meteor. Soc. Boston
- Carrière Jean-Marie Alquier Samuel Le Bot Christine Moulin Eric 1997 « Statistical verification of forecast icing risk indices” Meteorological Applications 4 115 130
- Carrière Jean-Marie Lainard Claude Le Bot Christine Robart Florent 2000 “A climatological study of surface freezing precipitations in Europe” Meteorological Applications 7 229 238
- Le Bot Christine 2000 “SIGMA système d'identification du givrage en météorologie aéronautique” Technical Note Météo-France
- Pobanz Brenda Marwitz John Politovitch Marcia K “Conditions Associated with large-drop regions” Journal of applied Meteorology Nov 1994 33 1366 1372