High-water Level River Discharge Measurement Method in Japan

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Problem of Pressure-type Flood Current Meter 1. Cost is expensive (about ¥100,000,000$850,000) 2. Possibility of miss by flowing objects or when current velocity is fast (more 4m/s)
Measurement using ADCP(by radiocontrolled boat) • Characteristics 1. Used for turbulence 3D structure of turbulence in river flow 2. Measure vertical water velocity profile precisely 3. We can use it if current velocity is not so fast (less than 34m/s)
Page 1 and 2: Flood River Discharge Measurement M
Page 3 and 4: Feature of River in Japan • Catc
Page 5 and 6: Feature of Flood River Discharge Me
Page 7 and 8: Measurement using Floats • Charac
Page 9 and 10: Technical Problem of Measurement us
Page 11 and 12: Hypothesis on Disturbed flow in the
Page 13 and 14: The observation by ADCP (19/12/2000
Page 15 and 16: Other flood River Discharge Measure
Page 17 and 18: Assortment of Non-Contact Surface C
Page 19 and 20: Problem of Non-Contact Surface Velo
Page 21 and 22: Problem of Non-Contact Surface Velo
Page 23: Pressure-type Flood Current Meter
Page 27 and 28: Conclusion • Float observation is

High-water Level River Discharge Measurement Method in Japan

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