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ESurf | Articles | Volume 8, issue 2
Earth Surf. Dynam., 8, 399–411, 2020
https://doi.org/10.5194/esurf-8-399-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Earth Surf. Dynam., 8, 399–411, 2020
https://doi.org/10.5194/esurf-8-399-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 02 Jun 2020

Research article | 02 Jun 2020

Seismo-acoustic energy partitioning of a powder snow avalanche

Emanuele Marchetti et al.

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Cited articles

Adam, V., Chritin, V., Rossi, M., and Van Lancker, E.: Infrasonic monitoring of snow-avalanche activity: what do we know and where do we go from here?, Ann. Glaciol., 26, 324–328, 1998. a
Bedard, A.: Detection of avalanches using atmospheric infrasound, in: Proceedings of the Western Snow Conference, edited by: Shafer, B., Western Snow Conference, April 1989, Colorado State University, Fort Collins, CO, USA, 52–58, 1989. a, b
Biescas, B., Dufour, F., Furdada, G., Khazaradze, G., and Suriñach, E.: Frequency content evolution of snow avalanche seismic signals, Surv. Geophys., 24, 447–464, 2003. a, b
Carrol, C. S., Louge, M. Y., and Turnbull, B.: Frontal dynamics of powder snow avalanches, J. Geophys. Res.-Earth, 118, 913–924, https://doi.org/10.1002/jgrf20068, 2013. a, b, c, d, e
Christen, M., Kowalski, J., and Bartelt, P.: RAMMS: Numerical simulation of dense snow avalanches in three-dimensional terrain, Cold Reg. Sci. Technol., 63, 1–14, https://doi.org/10.1016/j.coldregions.2010.04.005, 2010. a, b
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We present infrasonic and seismic array data of a powder snow avalanche, that was released on 5 February 2016, in the Dischma valley nearby Davos, Switzerland. Combining information derived from both arrays, we show how infrasound and seismic energy are radiated from different sources acting along the path. Moreover, infrasound transmits to the ground and affects the recorded seismic signal. Results highlight the benefits of combined seismo-acoustic array analyses for monitoring and research.
We present infrasonic and seismic array data of a powder snow avalanche, that was released on 5...
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