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Natural Hazards

, Volume 15, Issue 1, pp 89–100 | Cite as

Seismic Signals Induced by Snow Avalanche Flow

  • K. Kishimura
  • K. Izumi
Article

Abstract

In this paper some observations and their analysis are presented dealing with the link between seismic signals and avalanche flow. The measurements during the passage of avalanches showed a specific spindle pattern which was quite different from the one of natural earthquakes. The general trend strongly depended on the topographic features of the avalanche path, and as a result we could estimate avalanche velocity. The running power spectrum showed a meaningful shift of the dominant peak from the front to the rear part of the flow.

snow avalanche seismic signals spindle pattern avalanche velocity running power spectrum 

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References

  1. Bak, P. and Chen, K.: 1991, Self-organized criticality, Scientific American, January 1991, p. 46.Google Scholar
  2. Bedard, A. J., Jr., Greene, G. E., Intrieri, J., and Rodriguez, R.: 1988, On the feasibility and Value of Detecting and Characterizing Avalanches remoted by monitoring radiated sub-audible atmospheric sound at long distances, Proc. Multidisciplinary Approach to Snow Engineering, Santa Barbara, California.Google Scholar
  3. Harrison, J. C.: 1976, Seismic signals from avalanches, Chap. 7: Avalanche release and snow characteristics, San Juan Mountains, Colorado, Final Report San Juan Avalanche Project Institute of Arctic and Alpine Research, University of Colorado, Boulder, Colorado, pp. 145-152.Google Scholar
  4. Izumi, K. and Kobayashi, S.: 1986, The movement of a powder snow avalanche as recorded on a seismograph, Annual Report of Saigaiken, Niigata University, No. 8, pp. 99-104 (in Japanese with English abstract).Google Scholar
  5. Kawada, K., Nishimura, K. and Maeno, N.: 1989, Experimental studies on a powder-snow avalanche, Annals of Glaciology 13, 129-134.Google Scholar
  6. Lawrence, W. St. and Williams, T. R.: 1976, Seismic signals associated with avalanches, J. Glaciology 17, 521-526.Google Scholar
  7. Leprettre, B. J. P., Navarre, J.-P. and Taillefer, A.: 1996, First results from a pre-operational system for automatic detection and recognition of seismic signals associated with avalanches, J. Glaciology 42, 352-363.Google Scholar
  8. Nishimura, K., Narita, H., Maeno N. and Kawada, K.: 1989, The internal structure of powder-snow avalanches, Annals of Glaciology 13, 207-210.Google Scholar
  9. Nishimura, K., Maeno, N., Kawada, K. and Izumi, K.: 1993, Structures of snow cloud in dry-snow avalanches, Annals of Glaciology 18, 173-178.Google Scholar
  10. Okada, H.: 1993, Kasairyu hunka no kansoku to yochi, Chikyu 170, 492-505 (in Japanese).Google Scholar
  11. Tsukuda, T. and Mizoue, M.: 1988, Avalanche tremors detected by seismometers, Zishin 41, 47-57 (in Japanese with English abstract).Google Scholar

Copyright information

© Kluwer Academic Publishers 1997

Authors and Affiliations

  • K. Kishimura
    • 1
  • K. Izumi
    • 2
  1. 1.Institute of Low Temperature ScienceHokkaido UniversitySapporoJapan
  2. 2.Research Institute for Hazards in Snowy AreasNiigata UniversityNiigataJapan

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