The Influence of In‐Channel Obstacles on River Sound

Osborne, Wm. Alexander; Hodge, Rebecca; Love, Gordon D.; Hawkin, Peter; Hawkin, Ruth E.

doi:10.1029/2021wr031567

Cited by 3 publications

(1 citation statement)

References 42 publications

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“…Structures of this kind may prove to be an aid to the acoustic monitoring of discharge, and this warrants further study. Further comments on the role of roughness elements and associated hydraulics on acoustic monitoring of river discharge can be found in Osborne et al (2022).…”

Section: Introductionmentioning

confidence: 99%

Acoustic methods in physical geography: Applications and future development

Dunkerley

2022

Progress in Physical Geography: Earth and Environment

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Sound is produced by many geomorphic and hydrological processes, such as rockfalls and landslides, ocean waves, fluvial flood flows and collisions among moving bedload clasts. In these and other areas of study, acoustic methods have found useful application to detect and quantify the operation of important landscape processes. In some, such as the recording of river discharge, the occurrence of rare events such as exfoliation or the presence and movement of dust devils (willy-willies), the use of acoustic methods is still in a relatively early stage of development and testing. The use of acoustic methods in the recording of rainfall occurrence and intensity is also developing and has the capacity to yield data with higher temporal resolution than can be achieved using conventional rain gauges. Novel acoustic methods include the analysis of the sound recorded by security cameras, which potentially form a vast network of observing stations. The frequencies of sound generated by land-surface processes include audible sound, ultrasound and infrasound at frequencies below the human hearing range. All appear to provide opportunities for further development of useful research tools and methodologies.

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Section: Introductionmentioning

confidence: 99%

Acoustic methods in physical geography: Applications and future development

Dunkerley

2022

Progress in Physical Geography: Earth and Environment

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DAS to discharge: using distributed acoustic sensing (DAS) to infer glacier runoff

Manos,

Gräff,

Martin

et al. 2024

J. Glaciol.

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Observations of glacier melt and runoff are of fundamental interest in the study of glaciers and their interactions with their environment. Considerable recent interest has developed around distributed acoustic sensing (DAS), a sensing technique which utilizes Rayleigh backscatter in fiber optic cables to measure the seismo-acoustic wavefield in high spatial and temporal resolution. Here, we present data from a month-long, 9 km DAS deployment extending through the ablation and accumulation zones on Rhonegletscher, Switzerland, during the 2020 melt season. While testing several types of machine learning (ML) models, we establish a regression problem, using the DAS data as the dependent variable, to infer the glacier discharge observed at a proglacial stream gauge. We also compare two predictive models that only depend on meteorological station data. We find that the seismo-acoustic wavefield recorded by DAS can be utilized to infer proglacial discharge. Models using DAS data outperform the two models trained on meteorological data with mean absolute errors of 0.64, 2.25 and 2.72 m3 s−1, respectively. This study demonstrates the ability of in situ glacier DAS to be used for quantifying proglacial discharge and points the way to a new approach to measuring glacier runoff.

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New optical hydrodynamic representation of dispersive two-phase

Şevgin,

Körpinar

2024

Mod. Phys. Lett. B

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In this paper, we construct the photonic dam-break flow problem for [Formula: see text] magnetic fluid in a spherical model. Then, we obtain an optical magnetic transform for the NLSE in hydrodynamical form. By dispersive photonic hydrodynamic representation, normal of surface [Formula: see text] flow is obtained. Thus, we design two-phase [Formula: see text] flow dispersion density in a spherical model. Finally, we have new modeling of dispersive dam break two-phase [Formula: see text] flux.

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The Influence of In‐Channel Obstacles on River Sound

Cited by 3 publications

References 42 publications

Acoustic methods in physical geography: Applications and future development

Acoustic methods in physical geography: Applications and future development

DAS to discharge: using distributed acoustic sensing (DAS) to infer glacier runoff

New optical hydrodynamic representation of dispersive two-phase

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