Bedload flux in southern Brazilian basalt scarp

G. H. Merten; J. P.G. Minella

doi:10.5194/piahs-367-185-2015

Bedload flux in southern Brazilian basalt scarp

G. H. Merten, J. P.G. Minella

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Scopus citations

Abstract

Frequently, to assess the life expectancy of Brazilian reservoirs, bedload flux has been estimated by using formulas (e.g. the Einstein equations) or by assuming that bedload represents a fixed percentage of the suspended load. This study was carried out to characterize the bedload flux on the basalt scarps of southern Brazil. The bedload was measured over the course of 12 stormflows. The results demonstrated that the bedload flux-streamflow relationship was adequately described by a potential mathematical function. Bedload flux selectively transported particles smaller than D50 surface and subsurface bedstream sediments. When considering the bedload flux-streamflow relationship, the flux ranged from a minimum of 0.24 g m^-1 s^-1 for a streamflow of 0.53 m³ s^-1 to a maximum of 44 g m^-1 s^-1 for a streamflow of 1.3 m³ s^-1. The percentage of bedload/suspended load varied between <1% up to 60%, and this variation was strongly associated with peak flow.

Original language	English (US)
Title of host publication	Sediment Dynamics from the Summit to the Sea
Editors	Samuel J. Bentley, Y. Jun Xu, Adrian L. Collins, Mike Stone, Mead A. Allison, Arthur J. Horowitz, Wayne D. Erskine, Valentin Golosov
Publisher	Copernicus GmbH
Pages	185-191
Number of pages	7
ISBN (Electronic)	9781907161452
DOIs	https://doi.org/10.5194/piahs-367-185-2015
State	Published - 2014
Externally published	Yes
Event	International Symposium on Sediment Dynamics: From the Summit to the Sea, ICCE 2014 - New Orleans, United States Duration: Dec 11 2014 → Dec 14 2014

Publication series

Name	IAHS-AISH Proceedings and Reports
Volume	367
ISSN (Print)	0144-7815

Other

Other	International Symposium on Sediment Dynamics: From the Summit to the Sea, ICCE 2014
Country/Territory	United States
City	New Orleans
Period	12/11/14 → 12/14/14

Bibliographical note

Publisher Copyright:
Copyright © 2014 IAHS Press.

Keywords

Brazilian basalt scarps
Maddock classification
bedload
hydropower
reservoir life expectancy
step-pool streams

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Publisher link

10.5194/piahs-367-185-2015

Find It

Find It at U of M Libraries

Cite this

Merten, G. H., & Minella, J. P. G. (2014). Bedload flux in southern Brazilian basalt scarp. In S. J. Bentley, Y. J. Xu, A. L. Collins, M. Stone, M. A. Allison, A. J. Horowitz, W. D. Erskine, & V. Golosov (Eds.), Sediment Dynamics from the Summit to the Sea (pp. 185-191). (IAHS-AISH Proceedings and Reports; Vol. 367). Copernicus GmbH. https://doi.org/10.5194/piahs-367-185-2015

Bedload flux in southern Brazilian basalt scarp. / Merten, G. H.; Minella, J. P.G.
Sediment Dynamics from the Summit to the Sea. ed. / Samuel J. Bentley; Y. Jun Xu; Adrian L. Collins; Mike Stone; Mead A. Allison; Arthur J. Horowitz; Wayne D. Erskine; Valentin Golosov. Copernicus GmbH, 2014. p. 185-191 (IAHS-AISH Proceedings and Reports; Vol. 367).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Merten, GH & Minella, JPG 2014, Bedload flux in southern Brazilian basalt scarp. in SJ Bentley, YJ Xu, AL Collins, M Stone, MA Allison, AJ Horowitz, WD Erskine & V Golosov (eds), Sediment Dynamics from the Summit to the Sea. IAHS-AISH Proceedings and Reports, vol. 367, Copernicus GmbH, pp. 185-191, International Symposium on Sediment Dynamics: From the Summit to the Sea, ICCE 2014, New Orleans, United States, 12/11/14. https://doi.org/10.5194/piahs-367-185-2015

@inproceedings{d8ccc1b19fc34fa8bedbc2819e4e8820,

title = "Bedload flux in southern Brazilian basalt scarp",

abstract = "Frequently, to assess the life expectancy of Brazilian reservoirs, bedload flux has been estimated by using formulas (e.g. the Einstein equations) or by assuming that bedload represents a fixed percentage of the suspended load. This study was carried out to characterize the bedload flux on the basalt scarps of southern Brazil. The bedload was measured over the course of 12 stormflows. The results demonstrated that the bedload flux-streamflow relationship was adequately described by a potential mathematical function. Bedload flux selectively transported particles smaller than D50 surface and subsurface bedstream sediments. When considering the bedload flux-streamflow relationship, the flux ranged from a minimum of 0.24 g m-1 s-1 for a streamflow of 0.53 m3 s-1 to a maximum of 44 g m-1 s-1 for a streamflow of 1.3 m3 s-1. The percentage of bedload/suspended load varied between <1% up to 60%, and this variation was strongly associated with peak flow.",

keywords = "Brazilian basalt scarps, Maddock classification, bedload, hydropower, reservoir life expectancy, step-pool streams",

author = "Merten, {G. H.} and Minella, {J. P.G.}",

note = "Publisher Copyright: Copyright {\textcopyright} 2014 IAHS Press.; International Symposium on Sediment Dynamics: From the Summit to the Sea, ICCE 2014 ; Conference date: 11-12-2014 Through 14-12-2014",

year = "2014",

doi = "10.5194/piahs-367-185-2015",

language = "English (US)",

series = "IAHS-AISH Proceedings and Reports",

publisher = "Copernicus GmbH",

pages = "185--191",

editor = "Bentley, {Samuel J.} and Xu, {Y. Jun} and Collins, {Adrian L.} and Mike Stone and Allison, {Mead A.} and Horowitz, {Arthur J.} and Erskine, {Wayne D.} and Valentin Golosov",

booktitle = "Sediment Dynamics from the Summit to the Sea",

address = "Germany",

}

TY - GEN

T1 - Bedload flux in southern Brazilian basalt scarp

AU - Merten, G. H.

AU - Minella, J. P.G.

PY - 2014

Y1 - 2014

N2 - Frequently, to assess the life expectancy of Brazilian reservoirs, bedload flux has been estimated by using formulas (e.g. the Einstein equations) or by assuming that bedload represents a fixed percentage of the suspended load. This study was carried out to characterize the bedload flux on the basalt scarps of southern Brazil. The bedload was measured over the course of 12 stormflows. The results demonstrated that the bedload flux-streamflow relationship was adequately described by a potential mathematical function. Bedload flux selectively transported particles smaller than D50 surface and subsurface bedstream sediments. When considering the bedload flux-streamflow relationship, the flux ranged from a minimum of 0.24 g m-1 s-1 for a streamflow of 0.53 m3 s-1 to a maximum of 44 g m-1 s-1 for a streamflow of 1.3 m3 s-1. The percentage of bedload/suspended load varied between <1% up to 60%, and this variation was strongly associated with peak flow.

AB - Frequently, to assess the life expectancy of Brazilian reservoirs, bedload flux has been estimated by using formulas (e.g. the Einstein equations) or by assuming that bedload represents a fixed percentage of the suspended load. This study was carried out to characterize the bedload flux on the basalt scarps of southern Brazil. The bedload was measured over the course of 12 stormflows. The results demonstrated that the bedload flux-streamflow relationship was adequately described by a potential mathematical function. Bedload flux selectively transported particles smaller than D50 surface and subsurface bedstream sediments. When considering the bedload flux-streamflow relationship, the flux ranged from a minimum of 0.24 g m-1 s-1 for a streamflow of 0.53 m3 s-1 to a maximum of 44 g m-1 s-1 for a streamflow of 1.3 m3 s-1. The percentage of bedload/suspended load varied between <1% up to 60%, and this variation was strongly associated with peak flow.

KW - Brazilian basalt scarps

KW - Maddock classification

KW - bedload

KW - hydropower

KW - reservoir life expectancy

KW - step-pool streams

UR - http://www.scopus.com/inward/record.url?scp=84944705278&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84944705278&partnerID=8YFLogxK

U2 - 10.5194/piahs-367-185-2015

DO - 10.5194/piahs-367-185-2015

M3 - Conference contribution

AN - SCOPUS:84944705278

T3 - IAHS-AISH Proceedings and Reports

SP - 185

EP - 191

BT - Sediment Dynamics from the Summit to the Sea

A2 - Bentley, Samuel J.

A2 - Xu, Y. Jun

A2 - Collins, Adrian L.

A2 - Stone, Mike

A2 - Allison, Mead A.

A2 - Horowitz, Arthur J.

A2 - Erskine, Wayne D.

A2 - Golosov, Valentin

PB - Copernicus GmbH

T2 - International Symposium on Sediment Dynamics: From the Summit to the Sea, ICCE 2014

Y2 - 11 December 2014 through 14 December 2014

ER -

Bedload flux in southern Brazilian basalt scarp

Abstract

Publication series

Other

Bibliographical note

Keywords

UN SDGs

Publisher link

Find It

Other files and links

Fingerprint

Cite this