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<br />HYDROGRAPHS WITHOUT AN ADJUSTMENT FOR REACH TRAVELTIME
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<br />UPSTREAM HYDROGRAPH ADVANCED 1 DAY FOR REACH TRAVELTIME
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<br />TIME, IN DAYS =>
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<br />Figure 8. Example of (A) unadjusted hydrographs ~nd (8) a traveltime-adjusted upstream
<br />hydrograph of daily mean streamflow.
<br />
<br />was based on a significant correlation between
<br />upstream and downstream streamflow of 0.92
<br />(p=0.0001), was used in reach 2 for the computation
<br />of daily streamflow gains and losses. Visual inspec-
<br />tion of many streamflow hydro graphs for sites Q2
<br />and Q3 also indicated that a I-day advance of the
<br />upstream hydro graph was an appropriate traveltime
<br />
<br />'adjustment when using daily streamflow data. The
<br />boxplots of these calculated streamflow gains and
<br />losses are shown infigure 10; a negative value
<br />indicated a streamflow gain and a positive value
<br />indicated a streamflow loss. Median values of stream-
<br />:flow gains and losses in reach 2 were close to zero
<br />iduring every season (fig. 10).
<br />
<br />18 Evaluation 01 Slraamllow Traveltime and Streamllow Galna and Losses along tha Lower Purgatoire River,
<br />Southaasta.. COlorsdo, 1984-92
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