Acoustic gravel-transport sensor: description and field tests in Little Granite Creek, Wyoming, USA

被引：0

作者：

Downing, J ^{[1
]}

Farley, PJ ^{[1
]}

Bunte, K ^{[1
]}

Swingle, K ^{[1
]}

Ryan, SE ^{[1
]}

Dixon, M ^{[1
]}

机构：

[1] D&A Instrument Co, Port Townsend, WA 98368 USA

来源：

EROSION AND SEDIMENT TRANSPORT MEASUREMENT IN RIVERS: TECHNOLOGICAL AND METHODOLOGICAL ADVANCES | 2003年 / 283期

关键词：

bed load; bed load transport; gravel bed streams; gravel-transport sensor;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Acoustic systems have been developed for the measurement of bed load momentum in gravel bed streams. The transducers are placed in the bed load either by a wading operator (GTS-I) or in a fixed installation embedded in the stream (GTS-II). The signals produced when particles impact the transducer are processed by an electronics unit to provide a continuous record of bed load momentum. A recent comparison of a GTS-II system with bed load traps in a small, mountain stream yielded promising results. Although the data are limited, they show that when the size of the bed load is known, corrections for grain velocity are made, and time-space averaging is sufficient, GTS measurements are roughly comparable to those made with bed load traps.

引用

页码：193 / 200

页数：8