IDEAS home Printed from https://ideas.repec.org/a/spr/nathaz/v39y2006i2p159-177.html
   My bibliography  Save this article

Hydraulic and numerical study on the generation of a subaqueous landslide-induced tsunami along the coast

Author

Listed:
  • Yoshinori Shigihara
  • Daichi Goto
  • Fumihiko Imamura
  • Yuichi Kitamura
  • Takayuki Matsubara
  • Kazuaki Takaoka
  • Kazuhiko Ban

Abstract

By carrying out the hydraulic experiments in a one-dimensional open channel and two-dimensional basin, we clarified the process of how a landslide on a uniform slope causes the generation of a tsunami. The effect of the interactive force that occurs between the debris flow layer and the tsunami is significant in the generation of a tsunami. The continuous flow of the debris into the water makes the wave period of the tsunami short. The present experiments apply numerical simulation using the two-layer model with shear stress models on the bottom and interface, and the results are compared. The simulated debris flow shows good agreement with the measured results and ensures the rushing process into the water. We propose that the model use a Manning coefficient of 0.01 for the smooth slope and 0.015 for the rough slope, and a horizontal viscosity of 0.01 m 2 /s for the landslide; an interactive force of 0.2 for each layer is recommended. The dispersion effect should be included in the numerical model for the propagation from the shore. Copyright Springer Science+Business Media B.V. 2006

Suggested Citation

  • Yoshinori Shigihara & Daichi Goto & Fumihiko Imamura & Yuichi Kitamura & Takayuki Matsubara & Kazuaki Takaoka & Kazuhiko Ban, 2006. "Hydraulic and numerical study on the generation of a subaqueous landslide-induced tsunami along the coast," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 39(2), pages 159-177, October.
    • Handle: RePEc:spr:nathaz:v:39:y:2006:i:2:p:159-177
    DOI: 10.1007/s11069-006-0021-y
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1007/s11069-006-0021-y
    Download Restriction: Access to full text is restricted to subscribers.
    File URL: https://libkey.io/10.1007/s11069-006-0021-y?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:spr:nathaz:v:39:y:2006:i:2:p:159-177. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.