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<br />, <br /> <br />A COllecting and preliminary processing <br /> <br />Measurement 1 al cross-secllon x <br />~ <br />~ <br />Mea.... depttls along a <br />CfOS$SfICtIOfll.$nC;JeSOtlic-depth <br />sounder, marmg horizIonl8l <br />PD$'tIOnr.oery61lWK/l<$OfIctwt. <br />ToIaI~10lrarl5eclscornpeted <br /> <br />OIgtIZ8~~SOtmdefCl\arb <br /> <br />Measurement 2 at cross-section x <br />Start <br /> <br />Slepl <br /> <br />Measure depths alOng a <br />crossseaiof1usinga!JOl'lic:<Ieplh <br />souno:lltr, manong honlonUll <br />pOSIbooBllEKy61'f18W1;()I'lc:haf1 <br />TOIaloflOlransectscompleled <br /> <br />Step 2 <br /> <br />OigItJZ8sor!ic-deplnSOOl'lllefc:tlarts <br /> <br />lnlerpolatehol'lltlo1aJposilion5 <br />10 O.25-melaflnCfemenf3 <br /> <br />StepJ <br /> <br />InIerpolalehorilomall)06itions <br />lo02S-meterlf'lCrernents <br /> <br />Convert depUls III bedekMsl~(llala tel <br />Al) and ItIterpolate elewllOf\dalll at <br />O,2S-meter lI'IC'feI1IeIIt br.. 10 transects <br /> <br />SIep4 <br /> <br />~Qeplhslobed-..ations(oata68l; <br />A21 and interpolale 8leYalion datil at eaeh <br />O~incremenl.lofelll01ranst'lCt3 <br /> <br />Calcula188meallbedelevelionldalasel <br />Bl)Io<NChO,2~erlr'll;:rementt.lSlOQ <br />da-tBlromtheIOtrllns.ects <br /> <br />Step!) <br /> <br />CaleuIakllmeanbedele\lalionloalasel <br />B2)foreachO.2S-meterH'l(;remen1tlll1ng <br />datarromthetOlransects <br /> <br />~ <br />~ <br /> <br />~ <br /> <br />B. Calculatmg change in area at cross-sectIon x, between measurements 1 and 2 <br /> <br />Start <br /> <br />Use..1 and"2 data lot incr8fTl8fl11....hera I is <br />lheO,2S-mel8rlnCfemenlalonglheCf1)$Ssecloon <br /> <br />~ <br /> <br />UseBlana820ala <br />""~, <br /> <br />v", <br /> <br />"'"" <br />WilcoxQf1131'1k. <br />sumtesllOOelllm\ll1(lrt <br />becHlevation<JaIa(A,(I)andA2\I/).&&eh <br />~10lrB~.are~t'Y <br />dlfl9feotlromead1olher <br />p.vaIoe<EO.05 <br /> <br />No <br /> <br />SOOfr8ct mean elel4uoos belwe&n <br />meuusernents 1 and 2 at irw::tem8nIl <br />Odtll)., ~B2(IJ - 91(1)) <br /> <br />Meenelevarion~ <br />meUurvlMnl.&11lf1d2all'flCl'8l'Tlenll <br />Oift'(lj.O <br /> <br />~ <br />I Ca/oJI;Iteehange 11'1 area for Increment I I ....1 <br />AlNH)..MfO'0.25 1YJ. <br /> <br />Accull'Uatetotal change in area <br />A___.A'"-~At8a(J) <br />I <br />. <br />1..1.,unti1e8dlO.25-meter <br />incremenlhabeenevalualed <br /> <br />Calc:oIatechange in at'eaIorn:rementI <br />Nea{l)..DtI1(I)'025..0 <br /> <br />TotaIdl8ngeinareabefwe9rl <br />mea$Uf1l<'flllfll$1 al'ld'lorcrossS8C!ion ~ <br />ArMIt*I"'AI88_ <br /> <br />~ <br />~ <br /> <br />Figure 9 Dala-!ollectlon and processmg steps A Sleps tor colleClJng and prelimlnarv IJrocesSlng oi cross-section <br />ele~'allon dala B, Procedure tor calculating the change m tross-secllonal area between two successive measurements <br /> <br />18 YJfliSlions in SiSnd SIOtllglt Musurltd in Ihe ColoriSdo River Between Glen Canyon DamiSnd u.n Falls RiSpid. NOrJhern AriloniS. 1992-99 <br />