Laserfiche WebLink
<br /> .., <br />....... .., <br />0 <br />'-0 .., <br /><::> .., <br /> .., <br /> ~ <br /> s <br /> q:,.., <br /> ~ <br /> , <br /> s"" <br /> " <br /> .. <br /> .. <br /> ~ <br /> '00 <br /> ~ <br /> , <br /> 00 <br /> <br />,. <br />J <br />'- <br />s <br />" <br /> <br />,.. <br /> <br />.' <br /> <br /> . . <br /> . . <br />. . . . f+:"." .. . <br />-' . , . ., . . <br /> .~ . ',. ., <br /> .: . .. .+++ . ..' <br /> '.. " <br />+++: .. . '. . .' - <br />, . 'l .+ +., . <br /> . . . <br /> <br />00 <br /> <br />~ ~ <br />Year in the 20th Century <br /> <br />" <br /> <br />Figure 1 O. Linsartrend of sulfate ion concentration with <br />a linear correction forthe variability of streamflow for <br />the Colorado River near the Grand Canyon, December <br />through March, 1925-61. <br /> <br />. <br />+.t++: ++:l:++ ,+ ++++ <br />++ ':t: tt, *tt+H-t' <br />.. .. , ; .. : T '" ~ .. % T .. <br />t .. * '.." +~ t:T++ rl: <br />.. ++ .." <br />. '. <br /> <br />.. <br />00 <br /> <br />Year in the 20th Century <br /> <br />Figure 11. Log-log trend of sulfate ion concentration <br />with a power correction for the variability of stream- <br />flow for the Colorado River near the Grand Canyon, <br />December through March, 1925-61. <br /> <br />,. <br />J <br />'- <br />s <br />" <br /> <br />.... +++ ,.... +.. <br />~+ .. ~+:+:.t:+1.' ,.,t:++-t'... <br />,.+:+ f YJ+T T_ <br />::: * +... +; t+ '+. .; <br />. <br /> <br /> <br />,.. <br /> <br />.. <br /> <br />00 <br /> <br />00 <br /> <br />" ~ <br />Year in the 20th Century' <br /> <br />" <br /> <br />.. <br /> <br />Figure 12. Semilog trend of sulfate ion concentration <br />with a power correction for the variability of stream- <br />flow for the Colorado River near the Grand Canyon, <br />December through March,1925-61. <br /> <br />- <br /> <br />.. <br /> <br />.' <br /> <br />~ <br />~ <br />'S.. <br />or <br />'if <br />J <br />, <br />" <br />< ~ <br />~ <br /> <br />'. <br />., <br /> <br />'. <br /> <br />.' <br /> <br />'" <br /> <br /> <br />., <br />... <br /> <br />.. <br /> <br />.' <br /> <br />. <br />. <br /> <br />.. <br /> <br />'" <br /> <br />, <br />00 <br /> <br />.. <br /> <br />00 <br /> <br />" ~ <br />Year In the 20th Century <br /> <br />" <br /> <br />Figure 13. Sulfate ion concentration corrected for <br />streamflow by the residence time equation. The <br />ordinate is the product of the mass transfer coef- <br />ficient (k) and the solid-liquid contact area (A) up- <br />stream of the gaging station on the Colorado River <br />near the Grand Canyon, December through March, <br />1925-61. <br /> <br />37 <br />