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<br />hobability <br /> <br />n,.. annual chlince ai "ccurrenee of specHic hydra- <br />lagicevents, such as rainfall oVer a specified area <br />or peak discharge at ~ specified location expr~ss~d <br />i" percent, e.g., 5~ representing one chance in 2Q <br />of the event occurring In any year or an average re- <br />cnrren".. of onre in tW<'nty yea,.-s. <br /> <br />Reach <br /> <br />^ segment of the river defined hetween two specified <br />points. <br /> <br />Recurrence Interval The average interval of ti..e, in years, ",ithin which a <br />given flood will be exceeded once. <br /> <br />Reference Point <br /> <br />A numbered point identifying a specific location for <br />correl"ting the data shown inwltious fOOlS thro"gh- <br />out the report. <br /> <br />Right Bank <br /> <br />The bank on the right side of a river, stream or water <br />course, looking downstream. <br /> <br />Runoff <br />~- <br /> <br />The ~uant1ty of rainfall which flows over the ~urface <br />to ent~r the stream as discharge volu~. The difference <br />in Guantity between rainfall and runoff revre~ents lO$ses <br />to infiltration and interception. <br /> <br />Ske.wness <br /> <br />A nulft..dcal ",..a.~\lre or ind~" of ~~ymn..try of " fr~- <br />quene. disttibutlon. from tl pructicul ~canduoint. the <br />term indicates pOSition or negative curvature of a <br />flOOd-frequency relation. <br /> <br />Stream <br /> <br />Any natural oharmel OT depression through whioh ",ater <br />flows either oontinuously, interlftitt~ntly or period- <br />ically. includin~ any artif!oial mod!fi~ation of the <br />natural chonnel or depression. <br /> <br />W'lterah~d <br /> <br />Th~ drainage orca situated above a npecificd point <br />on a srream including the area drained by tributary <br />streAms which enter th.. main ~tr~am ah~~ this p~int. <br /> <br />" <br />