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dc.contributor.authorCzapiga, M.J.
Smith, V.B.
Nittrouer, J.A.
Mohrig, D.
Parker, G.
dc.date.accessioned 2015-10-30T15:40:40Z
dc.date.available 2015-10-30T15:40:40Z
dc.date.issued 2015
dc.identifier.citation Czapiga, M.J., Smith, V.B., Nittrouer, J.A., et al.. "Internal connectivity of meandering rivers: Statistical generalization of channel hydraulic geometry." Water Resources Research, 51, no. 9 (2015) Wiley: 7485-7500. http://dx.doi.org/10.1002/2014WR016133.
dc.identifier.urihttps://hdl.handle.net/1911/82001
dc.description.abstract The geometry of rivers has been characterized in terms of downstream and at-a-station hydraulic geometry, based on individual cross sections. Such analyses do not, however, provide insight as to how these cross sections are connected. We generalize the concept of hydraulic geometry, using data on bathymetry from four reaches of meandering rivers that include at least five bends. We quantify connectivity in terms of the probability that a connected path exists such that a given attribute remains within specified bounds along it. While the concept is general, here we apply it to vessel navigability. We develop a predictor for navigability in meandering rivers, which requires only the following, relatively easily obtained input: vessel draft, vessel width, bankfull depth, bankfull width, relative difference between current and bankfull water surface elevation, and length of desired navigation path. The predictor is applicable to both bankfull and below-bankfull stage. A key input parameter is the standard deviation of the probability distribution of depth. This parameter, in and of itself, yields no information on connectivity as it does not capture the spatial orientation of depth variation. We find, however, that (a) the probability function for connectivity does depend on this parameter, and (b) its use allows for an approximate similarity collapse of the probability function, so providing a quasi-universal predictive relation applying to all four reaches. The results also suggest potential application to more complex forms for connectivity that involve other or multiple in-stream physical variables.
dc.language.iso eng
dc.publisher Wiley
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.title Internal connectivity of meandering rivers: Statistical generalization of channel hydraulic geometry
dc.type Journal article
dc.contributor.funder Office of Naval Research
dc.citation.journalTitle Water Resources Research
dc.subject.keywordconnectivity
hydraulic geometry
navigation
dc.citation.volumeNumber 51
dc.citation.issueNumber 9
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1002/2014WR016133
dc.identifier.grantID N00014-10-1-0617 (Office of Naval Research)
dc.type.publication publisher version
dc.citation.firstpage 7485
dc.citation.lastpage 7500


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