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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Special sessions : Contineous monitoring of river discharge in a tidal reach with an h-adcp measurement and numerical s...
Contineous monitoring of river discharge in a tidal reach with an h-adcp measurement and numerical simulation
Author : YASUO NIHEI(1), DAISUKE NEGISHI(2) & JIN KASHIWADA(3)
ABSTRACT
We have developed a new river-discharge monitoring system with an H-ADCP measurement and numerical simulation in
which a DIEX (Dynamic Interpolation and EXtrapolation) method is used to accurately interpolate and extrapolate the
observed velocities in a cross section with satisfying dynamic principles. In the present study, we attempt to apply this
system into the discharge monitoring in the tidal reach of the Naka, Sumida, Ara and Sagami Rivers, Japan. The
measuring accuracy of the H-ADCP is strongly influenced by vertical density stratification and high turbidity conditions,
showing that the range of the data assimilation in the DIEX method must be changed due to these conditions. The
simulated discharge with the present system gives acceptable agreements with the observed results, indicating the
fundamental applicability of the present system into the discharge monitoring in tidal rivers.
File Size : 411,606 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Special sessions
Date Published : 19/08/2015
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