Assessing morphologic complexity and diversity in river systems using three dimensional asymmetry indices for bed elements, bedforms and bar units

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dc.contributor.author Rayburg, Scott en_US
dc.contributor.author Neave, Melissa en_US
dc.contributor.editor en_US
dc.date.accessioned 2010-05-28T09:44:07Z
dc.date.available 2010-05-28T09:44:07Z
dc.date.issued 2008 en_US
dc.identifier 2008001015 en_US
dc.identifier.citation Rayburg Scott and Neave Melissa 2008, 'Assessing morphologic complexity and diversity in river systems using three dimensional asymmetry indices for bed elements, bedforms and bar units', John Wiley & Sons, Ltd., vol. 24, no. 10, pp. 1343-1361. en_US
dc.identifier.issn 1535-1459 en_US
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/8573
dc.description.abstract Geomorphologists are becoming increasingly interested in assessing morphologic structure and the diversity and/or complexity in morphologic structure across multiple scales within river systems. Unfortunately, many of our existing tools/variables are unsuitable for this task because they do not work across multiple scales or with changing discharges. Asymmetry is one variable that can be used to either include or exclude variations in flow stage and that can be assessed across multiple scales. Existing asymmetry indices, however, are limited in scope and largely focus on only cross-sectional form. This study examines three existing asymmetry indices in the cross-stream and downstream planes (for cross-sections and riffle or pools, respectively) and develops nine new asymmetry indices that incorporate vertical, cross-stream and downstream asymmetry for bed elements (e.g. riffle crests, pool troughs, riffle entrance slope), bedforms (pools or riffles) and bar units (pool-riffle sequences) to investigate the utility of asymmetry as a measure of morphologic structure and diversity in fluvial systems. These 12 indices are field tested on the Embarras River in East Central Illinois, USA. en_US
dc.language en_US
dc.publisher John Wiley & Sons, Ltd. en_US
dc.relation.isbasedon http://dx.doi.org/10.1002/rra.1096 en_US
dc.title Assessing morphologic complexity and diversity in river systems using three dimensional asymmetry indices for bed elements, bedforms and bar units en_US
dc.parent River Research and Applications en_US
dc.journal.volume 24 en_US
dc.journal.number 10 en_US
dc.publocation London en_US
dc.identifier.startpage 1343 en_US
dc.identifier.endpage 1361 en_US
dc.cauo.name DVCRch.Institute for Water & Environmental Resource Mgmnt en_US
dc.conference Verified OK en_US
dc.for 050200 en_US
dc.personcode 105490 en_US
dc.personcode 0000047980 en_US
dc.percentage 100 en_US
dc.classification.name Environmental Science and Management en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords NA en_US


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