4.6 Article

Development of the Gravel Pressure and Voice Synchronous Observation System and Application in Bedload Transport Measurement

Related references

Note: Only part of the references are listed.
Article Environmental Sciences

Detection of the Bedload Movement with an Acoustic Sensor in the Yangtze River, China

Mi Tian et al.

Summary: The study explores the use of acoustic method for detecting bedload movement by recording sound signals produced by gravel particle impacts. A hydrophone is placed near the riverbed to collect and investigate three categories of raw audio signals: moving gravel particles, ship engines, and flow turbulence. Signal preprocessing using spectral subtraction is performed to reduce background noise, and characteristic parameters are calculated. A novel method is proposed for detecting and extracting bedload motion parameters, and further research will be conducted to investigate bedload transport using the extracted audio signal.

WATER (2023)

Article Engineering, Civil

Passive Acoustic Monitoring of Bed Load with Drifted Hydrophone

Mohamad Nasr et al.

Summary: Recent studies have found that passive acoustic techniques can monitor bed load by measuring the noise generated by particles impacting the riverbed. However, the technique requires calibration due to the different acoustic properties of each environment. A recent field campaign in various rivers showed that by attaching a hydrophone to a floating board close to the noise sources, there is a unique relationship between acoustic power and local bed load flux. This paper presents the measurement protocol and validation based on a new field campaign, demonstrating the successful prediction of bed load flux within a factor of 3 for over 70% of the measurements.

JOURNAL OF HYDRAULIC ENGINEERING (2023)

Article Geosciences, Multidisciplinary

A Physical Model for Acoustic Noise Generated by Bedload Transport in Rivers

M. Nasr et al.

Summary: Monitoring bedload transport is important for studying river morphology evolution and hydraulic structures stability. However, the lack of theoretical background linking recorded acoustic noise to bedload and river characteristics hinders a full understanding of experimental results. A model was developed to estimate the acoustic noise generated by bedload transport, showing varying prediction errors between different rivers, likely due to inaccuracies in predicting particle trajectory and velocity.

JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE (2022)

Article Environmental Sciences

Hydrological Drivers of Bedload Transport in an Alpine Watershed

G. Antoniazza et al.

Summary: Understanding and predicting bedload transport is crucial for watershed management. This study investigates the hydrological drivers of bedload transport using a 5-year continuous time series of streamflow and bedload monitoring in a snow-dominated Alpine watershed. The results highlight the importance of combined rain and snowmelt events in bedload transport.

WATER RESOURCES RESEARCH (2022)

Article Geochemistry & Geophysics

Bedload transport analysis using image processing techniques

Alexander A. Ermilov et al.

Summary: This study introduces a novel image-based method, the Video-based Bedload Tracker (VBT), for quantifying gravel bedload transport. By combining two different techniques, VBT provides detailed statistics of individual particle velocity and size data. The method has been tested and found to be able to set the correct parameter values easily through visual evaluation and literature. The applicability of VBT in the field is discussed, and a statistical filter is provided to account for suspended sediment and air bubbles.

ACTA GEOPHYSICA (2022)

Article Astronomy & Astrophysics

Improving the Calibration of the Swiss Plate Geophone Bedload Monitoring System by Filtering Out Seismic Signals From Extraneous Particle Impacts

Tobias Nicollier et al.

Summary: The spatio-temporal variability of bedload transport processes poses challenges for the Swiss plate geophone (SPG) bedload monitoring system. In this study, controlled flume experiments and impact tests were conducted to investigate the factors influencing the signal response of the SPG system and the potential bias caused by seismic waves generated by impacting particles. Based on the findings, a filter method was developed to eliminate the apparent impacts and improve the accuracy of bedload estimates. The filter was applied to four field calibration datasets, effectively reducing site-to-site differences.

EARTH AND SPACE SCIENCE (2022)

Article Geography, Physical

Comparison of calibration characteristics of different acoustic impactsystems for measuring bedload transport in mountain streams

Dieter Rickenmann et al.

Summary: This article compares the Swiss plate geophone (SPG) system with three alternative surrogate measuring systems. Results show that systems with an accelerometer and a microphone may be influenced by background noise levels, leading to potential calibration issues.

EARTH SURFACE DYNAMICS (2022)

Article Geography, Physical

Field and flume measurements with the impact plate: Effect of bedload grain-size distribution on signal response

Tobias Nicollier et al.

Summary: The study found that the signal response of the Swiss plate geophone system is affected by factors such as channel characteristics, flow velocity, and the grain-size distribution of transported bedload. Increasing flow velocity reduces the signal response, and the grain-size distribution of the transported bedload can lead to biased estimation of the bedload flux.

EARTH SURFACE PROCESSES AND LANDFORMS (2021)

Article Geography, Physical

Relevance of acoustic methods to quantify bedload transport and bedform dynamics in a large sandy-gravel-bed river

Jules Le Guern et al.

Summary: This study evaluated various bedload measurement techniques and found that hydrophone measurement is the most effective and accurate method in a large sandy-gravel-bed river. Further research is needed to determine the parameters controlling self-generated sediment noise, and the calibration procedure used in this study provides a satisfactory estimation of bedload transport rates. Additionally, aDcp and hydrophone measurement techniques are accurate enough to quantify bedload variations associated with dune migration.

EARTH SURFACE DYNAMICS (2021)

Article Geosciences, Multidisciplinary

Estimating Mean Bedload Transport Rates and Their Uncertainty

Christophe Ancey et al.

JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE (2020)

Article Geosciences, Multidisciplinary

Passive Acoustic Measurement of Bedload Transport: Toward a Global Calibration Curve?

T. Geay et al.

JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE (2020)

Article Environmental Sciences

Smartrock Transport in a Mountain Stream: Bedload Hysteresis and Changing Thresholds of Motion

Kealie L. G. Pretzlav et al.

WATER RESOURCES RESEARCH (2020)

Article Engineering, Chemical

Radiotracer and particle tracking methods, modeling and scale-up

Shantanu Roy

AICHE JOURNAL (2017)

Review Engineering, Civil

Bed-Load Transport Measurements with Geophones and Other Passive Acoustic Methods

Dieter Rickenmann

JOURNAL OF HYDRAULIC ENGINEERING (2017)

Review Engineering, Civil

Bed-Load Transport Measurements with Geophones and Other Passive Acoustic Methods

Dieter Rickenmann

JOURNAL OF HYDRAULIC ENGINEERING (2017)

Article Geosciences, Multidisciplinary

Passive acoustic monitoring of bed load discharge in a large gravel bed river

T. Geay et al.

JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE (2017)

Article Geography, Physical

Assessment of a new solution for tracking pebbles in rivers based on active RFID

Mathieu Cassel et al.

EARTH SURFACE PROCESSES AND LANDFORMS (2017)

Article Geography, Physical

Spectral variations of underwater river sounds

T. Geay et al.

EARTH SURFACE PROCESSES AND LANDFORMS (2017)

Article Geosciences, Multidisciplinary

Smartstones: A small 9-axis sensor implanted in stones to track their movements

Oliver Gronz et al.

CATENA (2016)

Article Thermodynamics

Velocity fields of a bed-load layer under a turbulent liquid flow

Marcos Roberto Mendes Penteado et al.

EXPERIMENTAL THERMAL AND FLUID SCIENCE (2016)

Article Environmental Sciences

Listen to the sound of moving sediment in a small gravel-bed river

Andreas Krein et al.

INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH (2016)

Article Engineering, Civil

Two-Dimensional Two-Phase Depth-Integrated Model for Transients over Mobile Bed

Cristiana Di Cristo et al.

JOURNAL OF HYDRAULIC ENGINEERING (2016)

Article Engineering, Civil

Measuring Bed Load Transport Rates by Grain-Size Fraction Using the Swiss Plate Geophone Signal at the Erlenbach

Carlos R. Wyss et al.

JOURNAL OF HYDRAULIC ENGINEERING (2016)

Article Engineering, Civil

Two-Dimensional Two-Phase Depth-Integrated Model for Transients over Mobile Bed

Cristiana Di Cristo et al.

JOURNAL OF HYDRAULIC ENGINEERING (2016)

Article Engineering, Civil

Measuring Bed Load Transport Rates by Grain-Size Fraction Using the Swiss Plate Geophone Signal at the Erlenbach

Carlos R. Wyss et al.

JOURNAL OF HYDRAULIC ENGINEERING (2016)

Article Engineering, Chemical

A Multiple Radioactive Particle Tracking Technique to Investigate Particulate Flows

Majid Rasouli et al.

AICHE JOURNAL (2015)

Article Oceanography

Sediment-generated noise and bed stress in a tidal channel

Christopher Bassett et al.

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS (2013)

Article Geography, Physical

Measuring gravel transport and dispersion in a mountain river using passive radio tracers

D. Nathan Bradley et al.

EARTH SURFACE PROCESSES AND LANDFORMS (2012)

Article Geography, Physical

Investigating the transport dynamics and the properties of bedload material with a hydro-acoustic measuring system

Andreas Krein et al.

EARTH SURFACE PROCESSES AND LANDFORMS (2008)