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Colorado River Peak Flow at Cisco, UT <br />Pre and Post ns0ina11 <br />60000 <br /> <br />soooo v99s <br />'~ <br /> <br />40D00 ,~ <br />_ <br />LL <br />V 31X100 ~ <br />3 <br />0 7996 <br />p LL 20000 <br />t <br /> <br /> <br />10000 <br /> <br />19 <br />tvw <br />92 <br /> I <br />0 f <br /> <br />0 20 40 60 80 100 <br />Exceedence <br />~ 1923-1965 -~- 1966-1996 <br />Colorado Riv. Annual Flow at Cisco, UT <br />Pre aM Post Aspinall <br />9000000 <br /> <br /> <br />8000000 1 <br />1 <br /> <br />7000000 799 <br /> i <br />1s9 I <br />m 6000000 <br />d <br />U 5000000 <br />X199 <br />... <br />03 4000000 <br />LL <br />3000000 ~ ~ .,gg <br /> <br />2000000 i <br />1000000 i <br />0 20 40 60 80 100 <br />Exceedence <br />-~- 1923-1965 -~ 1966.1996 <br />Colorado Riv. Q Cisco, UT <br />Pre aM Posl ASpiiall: Apr-JW Volwne <br />6000000 <br /> <br />5000000 ' 199 <br /> tss <br />_ <br />~ <br />4000000 I <br />47 <br />U ~ <br />.~.. <br />3 3000000 I <br />is9 ~ <br />0 <br />lL <br /> <br />2000000 <br /> <br />~ <br />i <br /> <br /> <br />1000000 199 <br />199 <br />0 20 40 60 60 100 <br />Exceedence <br />-~ 1923-1965 -r- 19661996 <br />Figure 3. Pre- (1923-1965) and post-Aspinall (1966-1996) exceedence flow plots for the Colorado <br />River at the Near Cisco, Utah, station (gage No. 09180500). Top graph -peak flow (cfs) <br />analysis; middle graph -total annual flow (acre-feet), and bottom graph -runoff flow <br />analysis (April -July flow volumes (acre-feet)). Values for the study years (1992-1996) are <br />depicted. <br />36 <br />