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<br />380 ComPV1Jlion.ll Flwc1 Dynoim/n <br /> <br />ICI <br /> <br /> <br />. <br /> <br />565200 <br /> <br />~I ul. (1991. 19tH) in thc= area marked as -I~ on Figur<:s 14,14 and 14.15. and most of <br />th<: gullies arC' contained m this area. <br />Most ofthc= gulli~ mapped by Hereford t'flll. (1991, 1993) in this reach are on ri\'er <br />Idt near the middle and downmeam parts of the reach (Figures 1414 J.nd 14.15). <br />Deposition predicted by the model was primarily along the channel sides, esp<<ially in <br />the Il"t of bank uregulariti~ that wC're too small to form well-develo~ recirculation <br />lanes. Deposition in the lee of bank irregularities may correspond to the deposition in <br />mlcrlXddic:s propoSC'd by John C. Schmidt tL:tah State L:ni\"C'rsity, oral communica- <br />tIon. 19991 as a ~ignificant dc=positional procC$S, but eddIes on the scale of the <br />computational grid are represented in the mood by the channel roughness. <br /> <br />. <br /> <br />/.1.6.3.1 .\fmkl prrJkfiollJ <br /> <br />\lodd predictions of dc=posltion rates for the entire channd show a straightfof\loo'ard <br />relation betwl"tn sand suppl~ and discharge and the consequc=nt deposition <br />I Figure 14.16), At both di!>Ch.ugc:s. deposit volume increased with in.:rea'>C'd sand suppl}. <br />and afh:r I:! hours. the hIgher di!>Charge produced larger deposits for aU ~nd supplic:s. <br />Al 1:!70m1 s. dc=position r,lles for !>and deposits abo\e the 708m';s stage folio.... <br />SImIlar pJ.tterns. asymptotically approachmg a maximum \alue tFigure 14.17), The <br />magmtude of the deposit \olume is proportional to the sand supp])' at 1:!~Om'~, <br />Wilh the !.,.... and Inlermediate sand supplie~. the m.t'\imum deposit \olume I~ <br />rc=.tched .tIler about ';8 hours. and onl} ~light IOcrea~ occur subscquC=nll}. With <br /> <br />- <br /> <br />. <br />