On the characterisation of seismic signals generated by snow avalanches for monitoring purposes

Seismic signals from artificially released avalanches were studied in an attempt to characterize them for avalanche-monitoring purposes. The seismic signals generated by different sizes and types of avalanches were recorded and analyzed in the time and frequency domains. Synchronized recordings of t...

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Detalles Bibliográficos
Autores: Suriñach Cornet, Emma, Furdada i Bellavista, Glòria, Sabot, F., Biescas Górriz, Berta, Vilaplana, Joan Manuel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2001
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/163317
Acceso en línea:https://hdl.handle.net/2445/163317
Access Level:acceso abierto
Palabra clave:Allaus
Sismologia
Sismòmetres
Avalanches
Seismology
Seismometers
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spelling On the characterisation of seismic signals generated by snow avalanches for monitoring purposesSuriñach Cornet, EmmaFurdada i Bellavista, GlòriaSabot, F.Biescas Górriz, BertaVilaplana, Joan ManuelAllausSismologiaSismòmetresAvalanchesSeismologySeismometersSeismic signals from artificially released avalanches were studied in an attempt to characterize them for avalanche-monitoring purposes. The seismic signals generated by different sizes and types of avalanches were recorded and analyzed in the time and frequency domains. Synchronized recordings of the corresponding seismic signals and the video images of the evolution of the avalanches were obtained together with a detailed cartography. Characteristic signatures in the frequency and time domains were found to depend on the characteristics of the avalanche path and measuring location, but to be mostly independent of avalanche size. The source of the different parts of the recorded seismic signals was determined. A relationship was observed between the avalanche size and the amplitude of the signals. Given the presence of local site effects, a prior seismic characterization of the avalanche path in relation to the recording sites is necessary for monitoring purposes. Moreover" it was found that sliding slabs in the early phase of acceleration produce little seismic energy, resulting in a time lapse between the observable start of the avalanche and the arrival of the detectable seismic waves at the receiving station.International Glaciological Society.2020202020012020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion7 p.application/pdfhttps://hdl.handle.net/2445/163317Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.3189/172756401781819634Annals of Glaciology, 2001, vol. 32, p. 268-274https://doi.org/10.3189/172756401781819634(c) International Glaciological Society., 2001info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1633172026-05-29T05:05:01Z
dc.title.none.fl_str_mv On the characterisation of seismic signals generated by snow avalanches for monitoring purposes
title On the characterisation of seismic signals generated by snow avalanches for monitoring purposes
spellingShingle On the characterisation of seismic signals generated by snow avalanches for monitoring purposes
Suriñach Cornet, Emma
Allaus
Sismologia
Sismòmetres
Avalanches
Seismology
Seismometers
title_short On the characterisation of seismic signals generated by snow avalanches for monitoring purposes
title_full On the characterisation of seismic signals generated by snow avalanches for monitoring purposes
title_fullStr On the characterisation of seismic signals generated by snow avalanches for monitoring purposes
title_full_unstemmed On the characterisation of seismic signals generated by snow avalanches for monitoring purposes
title_sort On the characterisation of seismic signals generated by snow avalanches for monitoring purposes
dc.creator.none.fl_str_mv Suriñach Cornet, Emma
Furdada i Bellavista, Glòria
Sabot, F.
Biescas Górriz, Berta
Vilaplana, Joan Manuel
author Suriñach Cornet, Emma
author_facet Suriñach Cornet, Emma
Furdada i Bellavista, Glòria
Sabot, F.
Biescas Górriz, Berta
Vilaplana, Joan Manuel
author_role author
author2 Furdada i Bellavista, Glòria
Sabot, F.
Biescas Górriz, Berta
Vilaplana, Joan Manuel
author2_role author
author
author
author
dc.subject.none.fl_str_mv Allaus
Sismologia
Sismòmetres
Avalanches
Seismology
Seismometers
topic Allaus
Sismologia
Sismòmetres
Avalanches
Seismology
Seismometers
description Seismic signals from artificially released avalanches were studied in an attempt to characterize them for avalanche-monitoring purposes. The seismic signals generated by different sizes and types of avalanches were recorded and analyzed in the time and frequency domains. Synchronized recordings of the corresponding seismic signals and the video images of the evolution of the avalanches were obtained together with a detailed cartography. Characteristic signatures in the frequency and time domains were found to depend on the characteristics of the avalanche path and measuring location, but to be mostly independent of avalanche size. The source of the different parts of the recorded seismic signals was determined. A relationship was observed between the avalanche size and the amplitude of the signals. Given the presence of local site effects, a prior seismic characterization of the avalanche path in relation to the recording sites is necessary for monitoring purposes. Moreover" it was found that sliding slabs in the early phase of acceleration produce little seismic energy, resulting in a time lapse between the observable start of the avalanche and the arrival of the detectable seismic waves at the receiving station.
publishDate 2001
dc.date.none.fl_str_mv 2001
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/163317
url https://hdl.handle.net/2445/163317
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3189/172756401781819634
Annals of Glaciology, 2001, vol. 32, p. 268-274
https://doi.org/10.3189/172756401781819634
dc.rights.none.fl_str_mv (c) International Glaciological Society., 2001
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) International Glaciological Society., 2001
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 7 p.
application/pdf
dc.publisher.none.fl_str_mv International Glaciological Society.
publisher.none.fl_str_mv International Glaciological Society.
dc.source.none.fl_str_mv Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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