IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Special sessions : Towards a continuous monitoring method of water and sediment discharge in the mahakam river and dist...
Towards a continuous monitoring method of water and sediment discharge in the mahakam river and distributary channels
Author : MAXIMILIANO SASSI (1), TON HOITINK (2), BART VERMEULEN(2) & HIDAYAT(2,3)
ABSTRACT
Water discharge can be continuously monitored with horizontally deployed acoustic Doppler current profilers (H-ADCPs). H-ADCPs may be used to continuously monitor suspended sediment discharge provided the H-ADCP backscatter signal is transformed to sediment concentration. We explore the ability of H-ADCPs to continuously monitor sediment discharge when combined with repeated surveys with a ship-mounted ADCP. Continuous, fixed station measurements of flow velocity and turbidity were taken with an H-ADCP and an optical backscatter sensor (OBS) in the Mahakam river. At several locations, we collected simultaneous vertical profile measurements with an ADCP, an OBS and a Laser In Situ Scattering and Transmissometer (LISST). Mass concentration from one hundred water samples allowed us to investigate the backscatter response to variation in concentration and in particle size distributions. We introduce a generic calibration approach to quantify sediment discharge in the Mahakam river and bifurcating branches of its delta.
File Size : 586,820 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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