I n s t r u m e n t s

a n d

M e t h o d s

signal.Thispartofthestudywillbeconductedusing
artificially released avalanches.

ACKNOWLEDGEMENTS

Mostsignal processing and data fusion methodsused in
the SARA recognition system have been developed in col-
laborationwiththeCEPHAG-Centred'Etudedes
Phénomènes Aléatoires et Géophysiques (research centre
on random and geophysical phenomena) at Grenoble,es-
pecially with Nadine Martin and François Glangeaud. We
also wish to thank allthe residents of the Vénéon valley
and Saint-Christophe-en-Oisans,whose testimonies have
allowed us to identify many avalanche events.

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