A review of the suspended sediment budget at the confluence of the Paraná and Paraguay Rivers

Autores
Amsler, Mario Luis; Drago, Edmundo Carlos E.
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Abstract. In this paper the sediment budget at the confluence of the Paraná-Paraguay rivers, is updated on the base of new suspended sediment concentrations data, measured during the nineties at carefullly located cross-sections after the construction of several large reservoirs. With these data, it was possible to estimate that  the suspended sediment load transported by the Upper Paraná River had decreased by 60% due the influence of the dams. This decrease occurred in spite of the influence of climate change across the Upper Paraná and Paraguay basin, which increased the precipitation and surface runoff. As a consequence of these anthropogenic and natural processes, the Bermejo River (the main source of wash load to the system) accounts for an increasing proportion of the sediment transport along the middle and lower reaches of the Paraná River. The Paraná River currently transport about 120 x 106 t year-1 of wash load, with nearly 90% of this being supplied by the Bermejo. The contribution of the Bermejo is now about 35% larger than its contribution during 1970s, when it accounted for approximately 60% of the sediment load of the Paraná River. These changes that have occurred over the last 30 years have enhanced the natural asymmetrical distribution of solid and water discharges in the Paraná River basin.
Fil: Amsler, Mario Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Drago, Edmundo Carlos E.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Materia
SEDIMENT LOAD
PARANA BASIN
WASH LOAD
RESERVOIRS
CLIMATE CHANGE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/103207

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spelling A review of the suspended sediment budget at the confluence of the Paraná and Paraguay RiversAmsler, Mario LuisDrago, Edmundo Carlos E.SEDIMENT LOADPARANA BASINWASH LOADRESERVOIRSCLIMATE CHANGEhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Abstract. In this paper the sediment budget at the confluence of the Paraná-Paraguay rivers, is updated on the base of new suspended sediment concentrations data, measured during the nineties at carefullly located cross-sections after the construction of several large reservoirs. With these data, it was possible to estimate that  the suspended sediment load transported by the Upper Paraná River had decreased by 60% due the influence of the dams. This decrease occurred in spite of the influence of climate change across the Upper Paraná and Paraguay basin, which increased the precipitation and surface runoff. As a consequence of these anthropogenic and natural processes, the Bermejo River (the main source of wash load to the system) accounts for an increasing proportion of the sediment transport along the middle and lower reaches of the Paraná River. The Paraná River currently transport about 120 x 106 t year-1 of wash load, with nearly 90% of this being supplied by the Bermejo. The contribution of the Bermejo is now about 35% larger than its contribution during 1970s, when it accounted for approximately 60% of the sediment load of the Paraná River. These changes that have occurred over the last 30 years have enhanced the natural asymmetrical distribution of solid and water discharges in the Paraná River basin.Fil: Amsler, Mario Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Drago, Edmundo Carlos E.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaJohn Wiley & Sons Ltd2009-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/103207Amsler, Mario Luis; Drago, Edmundo Carlos E.; A review of the suspended sediment budget at the confluence of the Paraná and Paraguay Rivers; John Wiley & Sons Ltd; Hydrological Processes; 23; 22; 10-2009; 3230-32350885-6087CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/hyp.7390info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:39:36Zoai:ri.conicet.gov.ar:11336/103207instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:39:36.469CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A review of the suspended sediment budget at the confluence of the Paraná and Paraguay Rivers
title A review of the suspended sediment budget at the confluence of the Paraná and Paraguay Rivers
spellingShingle A review of the suspended sediment budget at the confluence of the Paraná and Paraguay Rivers
Amsler, Mario Luis
SEDIMENT LOAD
PARANA BASIN
WASH LOAD
RESERVOIRS
CLIMATE CHANGE
title_short A review of the suspended sediment budget at the confluence of the Paraná and Paraguay Rivers
title_full A review of the suspended sediment budget at the confluence of the Paraná and Paraguay Rivers
title_fullStr A review of the suspended sediment budget at the confluence of the Paraná and Paraguay Rivers
title_full_unstemmed A review of the suspended sediment budget at the confluence of the Paraná and Paraguay Rivers
title_sort A review of the suspended sediment budget at the confluence of the Paraná and Paraguay Rivers
dc.creator.none.fl_str_mv Amsler, Mario Luis
Drago, Edmundo Carlos E.
author Amsler, Mario Luis
author_facet Amsler, Mario Luis
Drago, Edmundo Carlos E.
author_role author
author2 Drago, Edmundo Carlos E.
author2_role author
dc.subject.none.fl_str_mv SEDIMENT LOAD
PARANA BASIN
WASH LOAD
RESERVOIRS
CLIMATE CHANGE
topic SEDIMENT LOAD
PARANA BASIN
WASH LOAD
RESERVOIRS
CLIMATE CHANGE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Abstract. In this paper the sediment budget at the confluence of the Paraná-Paraguay rivers, is updated on the base of new suspended sediment concentrations data, measured during the nineties at carefullly located cross-sections after the construction of several large reservoirs. With these data, it was possible to estimate that  the suspended sediment load transported by the Upper Paraná River had decreased by 60% due the influence of the dams. This decrease occurred in spite of the influence of climate change across the Upper Paraná and Paraguay basin, which increased the precipitation and surface runoff. As a consequence of these anthropogenic and natural processes, the Bermejo River (the main source of wash load to the system) accounts for an increasing proportion of the sediment transport along the middle and lower reaches of the Paraná River. The Paraná River currently transport about 120 x 106 t year-1 of wash load, with nearly 90% of this being supplied by the Bermejo. The contribution of the Bermejo is now about 35% larger than its contribution during 1970s, when it accounted for approximately 60% of the sediment load of the Paraná River. These changes that have occurred over the last 30 years have enhanced the natural asymmetrical distribution of solid and water discharges in the Paraná River basin.
Fil: Amsler, Mario Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Drago, Edmundo Carlos E.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
description Abstract. In this paper the sediment budget at the confluence of the Paraná-Paraguay rivers, is updated on the base of new suspended sediment concentrations data, measured during the nineties at carefullly located cross-sections after the construction of several large reservoirs. With these data, it was possible to estimate that  the suspended sediment load transported by the Upper Paraná River had decreased by 60% due the influence of the dams. This decrease occurred in spite of the influence of climate change across the Upper Paraná and Paraguay basin, which increased the precipitation and surface runoff. As a consequence of these anthropogenic and natural processes, the Bermejo River (the main source of wash load to the system) accounts for an increasing proportion of the sediment transport along the middle and lower reaches of the Paraná River. The Paraná River currently transport about 120 x 106 t year-1 of wash load, with nearly 90% of this being supplied by the Bermejo. The contribution of the Bermejo is now about 35% larger than its contribution during 1970s, when it accounted for approximately 60% of the sediment load of the Paraná River. These changes that have occurred over the last 30 years have enhanced the natural asymmetrical distribution of solid and water discharges in the Paraná River basin.
publishDate 2009
dc.date.none.fl_str_mv 2009-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/103207
Amsler, Mario Luis; Drago, Edmundo Carlos E.; A review of the suspended sediment budget at the confluence of the Paraná and Paraguay Rivers; John Wiley & Sons Ltd; Hydrological Processes; 23; 22; 10-2009; 3230-3235
0885-6087
CONICET Digital
CONICET
url http://hdl.handle.net/11336/103207
identifier_str_mv Amsler, Mario Luis; Drago, Edmundo Carlos E.; A review of the suspended sediment budget at the confluence of the Paraná and Paraguay Rivers; John Wiley & Sons Ltd; Hydrological Processes; 23; 22; 10-2009; 3230-3235
0885-6087
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/hyp.7390
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons Ltd
publisher.none.fl_str_mv John Wiley & Sons Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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