Please use this identifier to cite or link to this item:
Title: On the complementariness of infrasound and seismic sensors for monitoring snow avalanches
Author: Kogelnig, Arnold
Suriñach Cornet, Emma
Vilajosana Guillén, Ignasi
Hübl, Johannes
Sovilla, B.
Hiller, M.
Dufour, F.
Keywords: Allaus
Prospecció sísmica
Seismic prospecting
Issue Date: 26-Aug-2011
Publisher: European Geosciences Union
Abstract: The paper analyses and compares infrasonic and seismic data from snow avalanches monitored at the Vallée de la Sionne test site in Switzerland from 2009 to 2010. Using a combination of seismic and infrasound sensors, it is possible not only to detect a snow avalanche but also to distinguish between the different flow regimes and to analyse duration, average speed (for sections of the avalanche path) and avalanche size. Different sensitiveness of the seismic and infrasound sensors to the avalanche regimes is shown. Furthermore, the high amplitudes observed in the infrasound signal for one avalanche were modelled assuming that the suspension layer of the avalanche acts as a moving turbulent sound source. Our results show reproducibility for similar avalanches on the same avalanche path.
Note: Reproducció del document publicat a:
It is part of: Natural Hazards and Earth System Sciences, 2011, Vol. 11, p. 2355-2370
Related resource:
ISSN: 1561-8633
Appears in Collections:Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)

Files in This Item:
File Description SizeFormat 
598992.pdf9.97 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons