ANALYSIS ON SPATIO-TEMPORAL SOURCES OF LARGE-SCALE FLOODING

• SAYAMA Takahiro

  ICHARM, Public Works Research Institute

• TATEBE Yuya

  ICHARM, Public Works Research Institute

• FUJIOKA Susumu

  ICHARM, Public Works Research Institute

• USHIYAMA Tomoki

  ICHARM, Public Works Research Institute

• TANAKA Shigenobu

  ICHARM, Public Works Research Institute

Bibliographic Information

Other Title

• 大規模洪水氾濫の時空間起源分析に関する研究

Abstract

Spatio-temporal information on the sources of flooding is essential for effective flood control and for a holistic understanding of water quality dynamics. Nevertheless, monitoring such information has been extremely challenging, particularly in the case of large-scale flooding. This paper proposes to estimate the information of flood sources by using a rainfall-runoff-inundation (RRI) model and time-space accounting scheme (T-SAS). The application of the model to the Thailand floods in 2011 demonstrated that 80 % percent of the peak stream flow in mid-October was contributed by the precipitation water in the past three months, and that 35 % of downstream inundated water originated from the local precipitation over the floodplains. We also discussed the effects of dam reservoirs and upstream inundations on the water sources in the study area. The proposed approach is useful to understand the fundamental mechanism of large-scale flooding.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 69 (4), I_463-I_468, 2013

  Japan Society of Civil Engineers

Keywords

• Rainfall-Runoff-Inundation
• T-SAS
• Thailand floods
• tracer
• distributed model

Details

• CRID: 1390001205354335872
• NII Article ID: 130004558300
• DOI: 10.2208/jscejhe.69.i_463
• ISSN: 2185467X
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed