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dc.contributor.author
Latrubesse, Edgardo Manuel
dc.date.available
2019-04-16T17:58:38Z
dc.date.issued
2008-10
dc.identifier.citation
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
dc.identifier.issn
0169-555X
dc.identifier.uri
http://hdl.handle.net/11336/74485
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Amazon River
dc.subject
Anabranching
dc.subject
Channel Patterns
dc.subject
Hydraulic Geometry
dc.subject
Large Rivers
dc.subject.classification
Geografía Física
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Patterns of anabranching channels: the ultimate end-member adjustment of mega rivers
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-26T20:34:17Z
dc.journal.volume
101
dc.journal.number
1-2
dc.journal.pagination
130-145
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
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
dc.journal.title
Geomorphology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.geomorph.2008.05.035
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0169555X08002389
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