Skip to main content
×
×
Home

Study of avalanche dynamics by seismic methods, image-processing techniques and numerical models

  • F. Sabot (a1), M. Naaim (a2), F. Granada (a3), E. Suriñach (a1), P. Planet (a3) and G. Furdada (a1)...
Abstract

Seismic signals of avalanches, related video images and numerical models were compared to improve the characterization of avalanche phenomena. Seismic data and video images from two artificially released avalanches were analysed to obtain more information about the origin of the signals. Image processing was used to compare the evolution of one avalanche front and the corresponding seismic signals. A numerical model was also used to simulate an avalanche flow in order to obtain mean- and maximum-velocity profiles. Prior to this, the simulated avalanche was verified using video images. The results indicate that the seismic signals recorded correspond to changes in avalanche type and path slope, interaction with obstacles and to phenomena associated with the stopping stage of the avalanche, suggesting that only part of the avalanche was recorded. These results account for the seismic signals previously obtained automatically in a wide avalanche area.

  • View HTML
    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Study of avalanche dynamics by seismic methods, image-processing techniques and numerical models
      Available formats
      ×
      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      Study of avalanche dynamics by seismic methods, image-processing techniques and numerical models
      Available formats
      ×
      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      Study of avalanche dynamics by seismic methods, image-processing techniques and numerical models
      Available formats
      ×
Copyright
References
Hide All
Gubler, H. 1987. Measurements and modelling of snow avalanche speeds. International Associatiou of Hydrological Publication 162 (Symposium at Davos 1986 — Avalanche Foramtion, Movement and Effects). 405420.
Gubler., H. 1989. Comparison of three models of avalanche dynamics, Ann. Glaciol., 13,8289.
Latombe, B., Ladret, P. Granada, F. and P., Villemain. 1997. An original active contour algorithm applied to snow avalanches. In Sixth International Conference on Image Processing and its Applications, July 14-17, 1997, Trinity College, Dublin, Ireland. Dublin. IEE Conference and Exhibition Services.
Leprettre., B.J.P., Navarre, J.-P. and Taillefer., A. 1996. First results of a pre-operational system for automatic detection and recognition of seismic signals associated with avalanches. J. Glaciol., 42(141), 352363.
Marco, O. 1995. Instrumentation d’un site avalancheux. (Ph.D. thesis. Université Joseph Fourier — Grenoble I.)
Naaim, M. and Ancey., C. 1992. Dense avalanche modelling. In Brugnot, G., ed. European Summer University on Natural Hazards: Snow and Avalanches, Chamonix, France, Proceedings. Saint-Martin-d’Hères. CEMAGREF, 173181.
Nishimura, K. and Maeno., N. 1987. Experiments on snow-avalanche dynamics, International Association of Hydrological Sciences Publication 162 (Symposium at Davos 1986 — Avalanche Formation, Movement and Effects), 395404.
Sabot, F., Martinez, P. Suriñach., E. Olivera, C. and Gavaldà., J. 1995. Détection sismique appliquée à la caractérisation des avalanches. In Sivardière., F., ed. Les apports de la recherche scientifique à la sécurité neige. glace et avalanche. Actes de Colloque, Chamonix 30 mai – 3 juin 1995. Grenoble, Association National pour l’Etude de la Neige et des Avalanches (ANENA), 1924.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Annals of Glaciology
  • ISSN: 0260-3055
  • EISSN: 1727-5644
  • URL: /core/journals/annals-of-glaciology
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed