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If ARFANG is able to be a betteravalanche observerthan
ski patrol men (who do not work at night and who cannot
see anything during foggy days...),then we can expect to
improvetheNXLOGperformance.Thesetwosystems
should therefore make a very efficient chain.
CONCLUSION
ARFANGdemonstratedthefeasabilityofautomatically
measuringavalancheactivityoveranextendedarea by
acoustical means.The next step istouse it in the actual
situation, connectedto the forecasting system NXLOG and
to evaluate such a chain.
ACKNOWLEDGMENTS
ARFANG and NXLOG have been developed with the fol-
lowing partners
- Natural Hazards Section of the Canton du Valais
- Ski resorts, especially Anzère and Alpe d'Huez
- DefenceTechnologyand ProcurementAgency of Swit-
zerland.
REFERENCES
Bolognesi R., BuserO., Good W., 1994
Local avalanche forecasting in Switzerland : strategy and tools.
Proceedings of the International Snow Science Workshop 1994,
Snowbird, UT, USA.
Bolognesi R., Büser O., 1995
Mergingdataanalysis and symbolic calculation intoadiag-
nosticsystemfornatural hazards,TheEmergencyManage-
ment and Engineering Conference, Nice, France.
Rossi M., Chritin V., mai 1995
Microphonespourladétectiond'infrasonsenmontagne,
Journée d'étude sur les transducteurs en milieu hostile, Groupe
ElectroAcoustique de la Société Française d'Acoustique, Paris,
France.
Chritin V., Rossi M., 1995
Détection acoustique des avalanches, Site La Sionne - Anzère,
Valais,Suisse,Proc.SymposiumInternationalScienceset
Montagnes, Vol. p. , A.N.E.N.A., France.
Bolognesi R., 1996
Patternrecognition pourlaprévision des avalanches.Neige
et Avalanches nº75, A.N.E.N.A., Grenoble,France.
Bolognesi R., Chritin R., Chritin V., 1996
Avalanche control, video 6', LEMA-EPF Lausanne, I.F.E.N.A.,
Dav os, Switzerland.
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