Monitoring Suspended Sediment Dynamics Using MBES

被引：22

作者：

Simmons, Stephen M.

Parsons, Daniel R.

Best, James L. ^{[1
,2
]}

Orfeo, Oscar ^{[3
]}

Lane, Stuart N. ^{[4
]}

Kostaschuk, Ray ^{[5
]}

Hardy, Richard J. ^{[4
]}

West, Geraint ^{[6
]}

Malzone, Chris ^{[7
]}

Marcus, Jon ^{[8
]}

Pocwiardowski, Pawel

机构：

[1] Univ Illinois, Dept Geol & Geog, Urbana, IL 61801 USA

[2] Univ Illinois, Ven Te Chow Hydrosyst Lab, Urbana, IL 61801 USA

[3] Consejo Nacl Invest Cient & Tecn, CECOAL, RA-3400 Corrientes, Argentina

[4] Univ Durham, Dept Geog, Durham DH1 3LE, England

[5] Univ Guelph, Dept Geog, Guelph, ON N1G 2W1, Canada

[6] Natl Oceanog Ctr, Ocean Engn Div, Southampton SO14 3ZH, Hants, England

[7] Myriax Software Pty Ltd, San Diego, CA 92106 USA

[8] RESON Inc, Res & Dev, Goleta, CA 93117 USA

来源：

JOURNAL OF HYDRAULIC ENGINEERING | 2010年 / 136卷 / 01期

基金：

英国自然环境研究理事会;

关键词：

Multibeam echo sonar; Suspended sediment; Sediment transport; Fluid mixing; Acoustic backscatter; ACOUSTIC MEASUREMENT; OCEAN MEASUREMENTS; MICROSTRUCTURE; BACKSCATTER; SCATTERING; DENSITY; WATER; RIVER;

D O I：

10.1061/(ASCE)HY.1943-7900.0000110

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This technical note describes use of a multibeam echosounder (MBES) to quantity the dynamics of suspended sediment in a large open channel. A methodology is detailed that uses the backscatter magnitude from the MBES water-column data to adjust the magnitude of sonar returns for the various sonar settings, spatially and temporally average the data to account for the random nature of acoustic backscatter from the suspended sediment, and calibrate the processed data with direct samples. A case study of flow at the confluence of the Rio Parana and Rio Paraguay, Argentina, where there is a distinct turbidity difference along the mixing interface of the two flows, is used to demonstrate the unique capabilities of MBES to quantify sediment concentrations and dynamics within the water column.

引用

页码：45 / 49

页数：5

共 28 条

[1] SOUND SCATTERING FROM A FLUID SPHERE [J].