MONITORING UNSTEADY STREAMFLOW-STAGE HYSTERESIS BEHAVIOR OF A GRAVEL-BED RIVER

• Mohamad Basel AL SAWAF

  Dept. of Civil and Environmental Eng., Hiroshima University

• KAWANISI Kiyosi

  Dept. of Civil and Environmental Eng., Hiroshima University

• DANIAL Mochammad Meddy

  Dept. of Civil and Environmental Eng., Hiroshima University

Abstract

 The aim of this contribution is to monitor unsteady behavior of streamflow, as well as, loops of streamflow-stage in a relatively small mountainous river. In order to determine river discharge, two methods were used: (i) the continuous slope area method (CSA), and (ii) the Index Velocity Rating Curve discharge data obtained by means of a novel fluvial acoustic tomography system (FATS) which developed by Hiroshima University. The findings showed that during a single hydological event, the temporal variations in water slope has two peaks, and water slope-stage has a positive hysteresis behavior. In addition, streamflow-stage hysteresis loops estimated by FATS are informative more than streamflow-stages estimated by the CSA method. Additionally, it was confirmed that stramflow-stage hysteresis loop increases with large-scale rainfall events.

Journal

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

  Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 74 (4), I_313-I_318, 2018

  Japan Society of Civil Engineers

Keywords

• streamflow
• FATS
• RC
• continuous slope area method
• surface water-slope
• hysteresis

Details

• CRID: 1390001288143265536
• NII Article ID: 130007628238
• NII Article ID: 40021504310
• NII Book ID: AN10426673
• ISSN: 18808751
• ISSN: 2185467X
• ISSN: 09167374
• DOI: 10.2208/jscejhe.74.i_313
• NDL BIB ID: 028903266
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028903266
• Web Site: https://www.jstage.jst.go.jp/article/jscejhe/74/4/74_I_313/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed