Consideration of debris flow in Nachi river during Typhoon No.12 in September 2011.

DOI
  • hirano kohin
    National Research Institute for Earth Science and Disaster Prevention

Bibliographic Information

Other Title
  • 平成２３年台風１２号災害における那智川の土石流の洪水氾濫への影響に関する検討

Description

Typhoon No.12 that stuck in September 2011 caused 28 fatalities and enormous damage to property in the Nachi River basin, Nachikatsuura City, Wakayama Prefecture. At least 8 debris flows occurred in residential areas, destroying houses and infrastructure. A large volume of earth and sand poured into the NachiRiver ,leading to the aggradation of the river bed and thus , the flooding Ichinono and Iseki(more than 3m) . Rainfall/water level data and field surveys indicate that these disasters mostly occurred late at night, from 2:30a.m. to shortly after 3:00a.m. on September 4. In this report, the river flow is simulated using computational model iRIC, and a comparison of simulated result and observed data is carried out to clarify the impact of debris flow to river flood.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390001205712686848
  • NII Article ID
    130005050914
  • DOI
    10.11520/jshwr.26.0.178.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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