Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
Online ISSN : 2185-467X
ISSN-L : 2185-467X
Annual Journal of Hydraulic Engineering, JSCE, Vol.62
MONITORING UNSTEADY STREAMFLOW-STAGE HYSTERESIS BEHAVIOR OF A GRAVEL-BED RIVER
Mohamad Basel AL SAWAFKiyosi KAWANISIMochammad Meddy DANIAL
Author information
JOURNAL FREE ACCESS

2018 Volume 74 Issue 4 Pages I_313-I_318

Details
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.
Content from these authors
© 2018 Japan Society of Civil Engineers
Previous article Next article
feedback
Top