| The authors have been developing an accuracy-evaluation method for flood flow observation with an Acoustic Doppler Current Profiler (ADCP).Several field measurements were conducted under severe ADCP measurement conditions characterized by high velocity and highly-frequent water-surface vibration. This paper described main factors influencing measurement accuracy related to velocity/waterdepth measurements and reviewed previous observation results. To finalize the development of the accuracy-evaluation methods、the authors conducted field measurements under severe conditions with highly sophisticated devices and verified the method with high-quality data sets. Finally it was applied to previous flood observation results obtained in the Shimanto River. |
