Patterns of anabranching channels: the ultimate end-member adjustment of mega rivers
- Autores
- Latrubesse, Edgardo Manuel
- Año de publicación
- 2008
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Large fluvial systems adjust to a combination of controls to form distinctive channels, which represent a dominant factor in the evolution of floodplain geomorphology and sedimentology. Fluvial geomorphology has commonly classified river channels into meandering, straight and braiding patterns, which are seen to represent a continuum of channel geometry. Anabranching patterns, rivers with multiple channels, however, are characteristic of many rivers. The identification of a combination of variables that discriminates specific channel patterns has been a significant focus of research in fluvial geomorphology. The development of this body of knowledge, however, has been established from medium and small rivers, and laboratory flume studies. Very few of these research ideas developed from analysis of large fluvial systems. This paper assesses the pattern of channel adjustment of large fluvial systems by employing hydraulic geometry, discharge, w/d, slope, grain size, stream power, specific stream power, and Froude number (Qmean > 1000 m3/s). The study demonstrates that methods currently used to discriminate channel patterns are not useful when applied to very large rivers. Further, with the exception of the Lower Mississippi, alluvial rivers with mean annual discharges greater than ~ 17,000 m3/s, here classified as mega rivers, do not generate single thread meandering or typical braided patterns. These mega rivers develop anabranching patterns. © 2008 Elsevier B.V. All rights reserved.
Fil: Latrubesse, Edgardo Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina - Materia
-
Amazon River
Anabranching
Channel Patterns
Hydraulic Geometry
Large Rivers - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/74485
Ver los metadatos del registro completo
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Patterns of anabranching channels: the ultimate end-member adjustment of mega riversLatrubesse, Edgardo ManuelAmazon RiverAnabranchingChannel PatternsHydraulic GeometryLarge Rivershttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Large fluvial systems adjust to a combination of controls to form distinctive channels, which represent a dominant factor in the evolution of floodplain geomorphology and sedimentology. Fluvial geomorphology has commonly classified river channels into meandering, straight and braiding patterns, which are seen to represent a continuum of channel geometry. Anabranching patterns, rivers with multiple channels, however, are characteristic of many rivers. The identification of a combination of variables that discriminates specific channel patterns has been a significant focus of research in fluvial geomorphology. The development of this body of knowledge, however, has been established from medium and small rivers, and laboratory flume studies. Very few of these research ideas developed from analysis of large fluvial systems. This paper assesses the pattern of channel adjustment of large fluvial systems by employing hydraulic geometry, discharge, w/d, slope, grain size, stream power, specific stream power, and Froude number (Qmean > 1000 m3/s). The study demonstrates that methods currently used to discriminate channel patterns are not useful when applied to very large rivers. Further, with the exception of the Lower Mississippi, alluvial rivers with mean annual discharges greater than ~ 17,000 m3/s, here classified as mega rivers, do not generate single thread meandering or typical braided patterns. These mega rivers develop anabranching patterns. © 2008 Elsevier B.V. All rights reserved.Fil: Latrubesse, Edgardo Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaElsevier Science2008-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/74485Latrubesse, Edgardo Manuel; Patterns of anabranching channels: the ultimate end-member adjustment of mega rivers; Elsevier Science; Geomorphology; 101; 1-2; 10-2008; 130-1450169-555XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.geomorph.2008.05.035info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0169555X08002389info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:00:36Zoai:ri.conicet.gov.ar:11336/74485instacron: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:34982025-09-29 10:00:36.587CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Patterns of anabranching channels: the ultimate end-member adjustment of mega rivers |
title |
Patterns of anabranching channels: the ultimate end-member adjustment of mega rivers |
spellingShingle |
Patterns of anabranching channels: the ultimate end-member adjustment of mega rivers Latrubesse, Edgardo Manuel Amazon River Anabranching Channel Patterns Hydraulic Geometry Large Rivers |
title_short |
Patterns of anabranching channels: the ultimate end-member adjustment of mega rivers |
title_full |
Patterns of anabranching channels: the ultimate end-member adjustment of mega rivers |
title_fullStr |
Patterns of anabranching channels: the ultimate end-member adjustment of mega rivers |
title_full_unstemmed |
Patterns of anabranching channels: the ultimate end-member adjustment of mega rivers |
title_sort |
Patterns of anabranching channels: the ultimate end-member adjustment of mega rivers |
dc.creator.none.fl_str_mv |
Latrubesse, Edgardo Manuel |
author |
Latrubesse, Edgardo Manuel |
author_facet |
Latrubesse, Edgardo Manuel |
author_role |
author |
dc.subject.none.fl_str_mv |
Amazon River Anabranching Channel Patterns Hydraulic Geometry Large Rivers |
topic |
Amazon River Anabranching Channel Patterns Hydraulic Geometry Large Rivers |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Large fluvial systems adjust to a combination of controls to form distinctive channels, which represent a dominant factor in the evolution of floodplain geomorphology and sedimentology. Fluvial geomorphology has commonly classified river channels into meandering, straight and braiding patterns, which are seen to represent a continuum of channel geometry. Anabranching patterns, rivers with multiple channels, however, are characteristic of many rivers. The identification of a combination of variables that discriminates specific channel patterns has been a significant focus of research in fluvial geomorphology. The development of this body of knowledge, however, has been established from medium and small rivers, and laboratory flume studies. Very few of these research ideas developed from analysis of large fluvial systems. This paper assesses the pattern of channel adjustment of large fluvial systems by employing hydraulic geometry, discharge, w/d, slope, grain size, stream power, specific stream power, and Froude number (Qmean > 1000 m3/s). The study demonstrates that methods currently used to discriminate channel patterns are not useful when applied to very large rivers. Further, with the exception of the Lower Mississippi, alluvial rivers with mean annual discharges greater than ~ 17,000 m3/s, here classified as mega rivers, do not generate single thread meandering or typical braided patterns. These mega rivers develop anabranching patterns. © 2008 Elsevier B.V. All rights reserved. Fil: Latrubesse, Edgardo Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina |
description |
Large fluvial systems adjust to a combination of controls to form distinctive channels, which represent a dominant factor in the evolution of floodplain geomorphology and sedimentology. Fluvial geomorphology has commonly classified river channels into meandering, straight and braiding patterns, which are seen to represent a continuum of channel geometry. Anabranching patterns, rivers with multiple channels, however, are characteristic of many rivers. The identification of a combination of variables that discriminates specific channel patterns has been a significant focus of research in fluvial geomorphology. The development of this body of knowledge, however, has been established from medium and small rivers, and laboratory flume studies. Very few of these research ideas developed from analysis of large fluvial systems. This paper assesses the pattern of channel adjustment of large fluvial systems by employing hydraulic geometry, discharge, w/d, slope, grain size, stream power, specific stream power, and Froude number (Qmean > 1000 m3/s). The study demonstrates that methods currently used to discriminate channel patterns are not useful when applied to very large rivers. Further, with the exception of the Lower Mississippi, alluvial rivers with mean annual discharges greater than ~ 17,000 m3/s, here classified as mega rivers, do not generate single thread meandering or typical braided patterns. These mega rivers develop anabranching patterns. © 2008 Elsevier B.V. All rights reserved. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-10 |
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/11336/74485 Latrubesse, Edgardo Manuel; Patterns of anabranching channels: the ultimate end-member adjustment of mega rivers; Elsevier Science; Geomorphology; 101; 1-2; 10-2008; 130-145 0169-555X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/74485 |
identifier_str_mv |
Latrubesse, Edgardo Manuel; Patterns of anabranching channels: the ultimate end-member adjustment of mega rivers; Elsevier Science; Geomorphology; 101; 1-2; 10-2008; 130-145 0169-555X CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.geomorph.2008.05.035 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0169555X08002389 |
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 |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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13.070432 |