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<br />4 <br /> <br />TECHNICAL MANUAL <br /> <br />FLOOD INFORMATION NEAR GAGED SITES ON THE SAME STREAM <br /> <br />Peak discharges at sites near gaging stations on the same stream can be <br />computed by the following equation: <br /> <br />QT(u)=[:~1\T(G) <br /> <br />where <br /> <br />QT(U)= peak discharge at ungaged site for recurrence interval T, <br /> <br />QT(G)= weighted average discharge at gaged site for recurrence interval T, <br /> <br />AU = drainage area at ungaged site, <br /> <br />AG = drainage area at gaged site, and <br /> <br />X = exponent for each flood region as follows: <br /> <br />Flood Region <br /> <br />Plains <br />Mounta i ns <br />Northern Plateau <br />Southern Plateau <br /> <br />Exp~!.:!~ <br />0.48 <br />,79 <br />,50 <br />,71 <br /> <br />The above procedure is applicable for ungaged sites where the drainage area <br />ratio lies between 0.5 and 2.0. <br />