<div class="csl-bib-body">
<div class="csl-entry">Höllrigl, J., Blanckaert, K., Hurther, D., Fromant, G., & Storck, F. R. (2024, April 15). <i>Hydro-acoustic multi-frequency measurements of suspended sediment flux in rivers</i> [Conference Presentation]. EGU General Assembly 2024, Wien, Austria. https://doi.org/10.5194/egusphere-egu24-18899</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/209478
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dc.description.abstract
Currently, the estimation of suspended sediment concentration (SSC) fluxes in rivers relies on river discharge and an average SSC, the latter is commonly determined through optical turbidity measurements at a single point in the river cross-section. This approach has limitations, such as the SSC data being extrapolated from a one-point measurement and indirectly determined depending on regular sampling and laboratory analysis, which is cost-intensive.
Hydro-acoustic echosounders are an alternative to derive SSC across an entire profile, for accurate conversion from backscatter intensity to SSC knowledge of particle size is a requirement. In this approach, we present a method utilizing multi-frequency hydro-acoustic echosounding in addition to velocity measurements via an ADCP. Operating on various acoustic frequencies allows for the direct estimation of mean particle size from backscatter data at different frequencies over a water profile. River in-situ measurements as well as laboratory experiments have been conducted in different concentration as well as particle size distribution regimes.
en
dc.description.sponsorship
Bundesamt für Umwelt BAFU
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dc.language.iso
en
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dc.subject
hydro-acoustic
en
dc.subject
suspended sediment concentration
en
dc.subject
acoustic inversion
en
dc.subject
multi-frequency echo sounder
en
dc.title
Hydro-acoustic multi-frequency measurements of suspended sediment flux in rivers
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
Centre National de la Recherche Scientifique, France
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dc.relation.grantno
Nr.06.0074.PZ/B85F18BC
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dc.type.category
Conference Presentation
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tuw.project.title
Development of a methodology for hydro-acoustic measurements of the suspended sediment flux in BAFUs sediment monitoring stations
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tuw.researchTopic.id
M2
-
tuw.researchTopic.id
E4
-
tuw.researchTopic.id
I8
-
tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.name
Environmental Monitoring and Climate Adaptation
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tuw.researchTopic.name
Sensor Systems
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tuw.researchTopic.value
10
-
tuw.researchTopic.value
70
-
tuw.researchTopic.value
20
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tuw.publication.orgunit
E222-01 - Forschungsbereich Wasserbau und Umwelthydraulik
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tuw.publisher.doi
10.5194/egusphere-egu24-18899
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tuw.author.orcid
0000-0002-6630-3683
-
tuw.author.orcid
0000-0002-7667-1826
-
tuw.author.orcid
0000-0003-4348-3041
-
tuw.author.orcid
0000-0002-2706-3808
-
tuw.event.name
EGU General Assembly 2024
en
tuw.event.startdate
14-04-2024
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tuw.event.enddate
19-04-2024
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tuw.event.online
Hybrid
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tuw.event.type
Event for scientific audience
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tuw.event.place
Wien
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tuw.event.country
AT
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tuw.event.presenter
Höllrigl, Jakob
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wb.sciencebranch
Bauingenieurwesen
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wb.sciencebranch
Umwelttechnik
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wb.sciencebranch
Hydrologie
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wb.sciencebranch.oefos
2011
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wb.sciencebranch.oefos
2071
-
wb.sciencebranch.oefos
1053
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wb.sciencebranch.value
30
-
wb.sciencebranch.value
20
-
wb.sciencebranch.value
50
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item.languageiso639-1
en
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item.openairetype
conference paper not in proceedings
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item.grantfulltext
none
-
item.fulltext
no Fulltext
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item.cerifentitytype
Publications
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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crisitem.author.dept
E222-01 - Forschungsbereich Wasserbau
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crisitem.author.dept
E222-01 - Forschungsbereich Wasserbau
-
crisitem.author.dept
Centre National de la Recherche Scientifique
-
crisitem.author.orcid
0000-0002-6630-3683
-
crisitem.author.orcid
0000-0002-7667-1826
-
crisitem.author.orcid
0000-0003-4348-3041
-
crisitem.author.orcid
0000-0002-2706-3808
-
crisitem.author.parentorg
E222 - Institut für Wasserbau und Ingenieurhydrologie
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crisitem.author.parentorg
E222 - Institut für Wasserbau und Ingenieurhydrologie
