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<br /> RELATION OF UNI; HYDRO GRAPHS
<br /> TO S - CURVE HYDRO GRAPHS
<br /> COMPUTATION OF S - CURVE COMPUTATION OF 6 - HOUR UNIT
<br /> HYDROGRAPH FROM KNOWN HYDROGRAPH FROM 12 - HOUR
<br />TIME 12 - HOUR UNIT HYDROGRAPH S - CURVE HYDROGRAPH
<br />IN 12-HOUR 12 - HOUR 12-HOUR
<br />HOURS 12-HOUR UNIT S-CURVE S -CURVE S-CURVE RUNOFF FROM 6-HOUR UNIT
<br /> HYDROGRAPH HYDROGRAPH HYDROGR"PH HYDRO GRAPH O.S INCH Re HYDROGRAPH
<br /> G> PLATE \I <Zl PLATE II (i) PLATE II CD SHIFTED IN 6 HOURS [2 (COL6)]
<br /> IN C.F, S. IN C. F.S. IN C. ES. SIX HOURS (COL4-COL.5) IN c. F, S.
<br />1 2 3 4 5 6 7
<br />6 9001 r 900........ 900 1,800
<br />12 3,400) i/ L3,4oo........ ------.... 900 2,500 5,000
<br />18 6,900 } { 900 l/ r 7,800 '---3,400 4,400 8,800
<br />24 10,100 + 3,400 1/ l!3,500 7,800 5,700 11,400
<br />30 12,300} ft {7'80~}t 20,100 13,500 6,600 13,200
<br />36 13,600 13,500 ~ 27,100 20,100 7,000 14,000
<br />42 13,900 20,100 34,000 27,100 6,900 13,800
<br />, 48 13,200 27,100 40,300 34,000 6,300 12,600
<br />54 11,800 34,000 45,800 40,300 5,500 11,000
<br />60 10,300 40,300 50,600 45,800 4,800 9,600
<br />66 8,950 45,800 54,750 50,600 4,150 8,300
<br />72 7,650 50,600 58, 250 54,750 3,500 7,000
<br />78 6,400 54,750 61,150 58,250 2,900 5,800
<br />84 5,250 58,250 63,500 61,150 2,350 4,700
<br />90 4,200 61,150 65,350 63,500 1,850 3,700
<br />96 3.200 63,500 66,700 65 ,350 1,350 2,700
<br />102 2,280 65,350 67,630 66,700 930 1,860
<br />108 1,580 66,700 68,280 67,630 650 1,300
<br />114 1,100 67,630 68,730 68,280 450 900
<br />120 750 68,280 69,030 68,730 300 600
<br />126 500 68,730 69,230 69,030 200 400
<br />132 300 69,030 69,330 69,230 100 200
<br />138 150 69,230 69,380 69,330 50 100
<br />144 50 69,330 69,380 69 ;380 0 0
<br /> *ALL DISCHARGES ARE INSTANTANEOUS VALUES AT THE END OF THE
<br /> HOUR DESIGNATED IN COLUMN 1. DRAINAGE AREA EQUALS 1290 SQUARE
<br /> MILES. SEE, ALSO, PLATE NO. II.
<br />
<br />EM 1110-2-1405
<br />App III
<br />31 Aug 59
<br />
<br />44
<br />
<br />PLATE NO.8
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