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<br />Prohahility <br /> <br />The ~""ual chance of "cc"rr~nce af specific hydra- <br />logic events, ~u~h as rainfall over a specified area <br />orpeakdischargeataspecHiedloe"tionel<pfeSAed <br />in percent, e.g., 57. repreAenting one chance in 20 <br />of the event occurring in any year 0, an ave, age ,e- <br />cu,rence of OnCe in t~enty years. <br /> <br />A segment of the "tive.r defined het",een t",o spe~1fi"d <br />points. <br />Recurrene" Interval The average interval of time, in years, ~ithin ",hich a <br />given flood will he exc"eded once. <br /> <br />Reach <br /> <br />Reference Point <br /> <br />A numbered point identifying a specific location for <br />correlating the data shown in various forms through- <br />out the report, <br /> <br />RiKht Bank <br /> <br />The bank on the right side of a river, stream or ",ater <br />course. looking downstream. <br /> <br />Runoff <br /> <br />The qu~ntity of rainfall which flows over the surface <br />to enter the atream aa dischargevalume. Thedifference <br />in quantity bet",een rainfall and runoff rep.cscnts l08~es <br />to Infiltration and Interception. <br /> <br />Sk<,wne.." <br /> <br />A num~ri""l m~"~ure or Index of "~YT""etry of " fn.- <br />qu<,ncy di~tribution. ftom ~ pr~ctic~l ~tandpaint, the <br />term indicates position or negative curvature of a <br />flood-frQquoncy relation. <br /> <br />Stre"", <br /> <br />Any lllitural "hall""l or ll"l're~~ion through ",hich ",ater <br />fIn",,, eHher continuously, intermittently or period- <br />j,c.ally, indllding any artificial modHI<:aUon of the <br />natural channel or depression. <br /> <br />watershed <br /> <br />Tho d.ainage area ~itu"ted ahove a ~PQeifled point <br />On IT stteam Incl"din~ tho area drained hy tributary <br />streamS ",hieh onte. the main ~tream ahove this point. <br /> <br />" <br />