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<br />f' <br /> <br /> <br />a <br /> <br />GLOSSARY Of TR~~S <br /> <br />I <br /> <br />I <br /> <br />a <br /> <br />Ve.ticaleonttol"ast1edtoIJSC&CSbenehcarksS167,YI63andTI67. <br /> <br />Channel - A natu.al o. a.tificial water eou.sc of perceptible extent "1th <br /> <br />deftnlte banks to conftneand conduct "-ontinuoustyor per1od1cally <br /> <br />I <br /> <br />g <br /> <br />Permanent reference....rks "e'e not set fortllisstudy. 1'1eldnotesfor <br /> <br />ground control onndd1tlonalmapplngpertocmed by theOavis EngIneer ing <br /> <br />flowing "'ater. Channel flOlo/ la tllat ..."ter which h flow1ng within the <br /> <br />I <br /> <br />Ibuts of the defined channel. <br /> <br />~ <br /> <br />Company in 1978 arc on Hlc"'lth the Colorado II.1.ter Cons..rvatJ.on 8oard. <br /> <br />I <br /> <br />! <br /> <br />flood - ~ater frnm a river, st.eam, water course, lake or other body of <br /> <br />stand1ns..ater, that tempornrllyovcrflo"", the boundar1es "'ltllin \lhich <br /> <br />I <br /> <br />I <br /> <br />1t 1s ordinarIly confined. <br /> <br />I <br /> <br />a <br /> <br />I'lood Creat -The maxi..umstage or elevation reached by the "'sten of <I <br /> <br />I <br /> <br />g <br /> <br />flood"t"gtvenloc4Uon. <br /> <br />I <br /> <br />a <br /> <br />I'lood frequency - A means of expressing the probability of flood OCcurrenCeS <br /> <br />as detenll1ned frOllls statisticsla"alysh of representaUve stream flo,", <br /> <br />I <br /> <br />3 <br /> <br />o. ralnfslland runoff records. The frequency of apartlcular stage or <br /> <br />I <br /> <br />j <br /> <br />discharge 111 usually expressed as occurring once in a specified number <br /> <br />of years. The 10-, 25-, 50-, 100- a.nd SOD-year frequency floods Ilsve <br /> <br />I <br /> <br />] <br /> <br />anayerage frequencyofotcurrence In the order of Once in the nUlllbe r <br /> <br />of years as indlcated. <br /> <br />I <br /> <br />.] <br /> <br />] <br /> <br />ID-Yearflood-Afloo<1ha.Ylng.,naver"gefre'luencyofoteurrenceof <br /> <br />I <br /> <br />onN' Irl 10y..ar$. It hM a 10 percent chanc" of being equaled Qr <br /> <br />I <br /> <br />] <br /> <br />exce..ded in any glyeR year. <br /> <br />I <br /> <br />l <br />J <br /> <br />100-Year Hoc;! - ^ Hoed h.1vJ.n<> :In"..",r..ge frequency of <:CClln""c" u[ <br /> <br />] <br /> <br />"n~.e 1n 100 years. It haa a l p"rr.ent "-Mnce 01 ~l"$ equ.l1ed or <br /> <br />I <br /> <br />exccededInanyglvenyear. <br /> <br />I <br /> <br />J <br /> <br />AP-7 <br /> <br />AY-tj <br /> <br />, <br />