9513

• UCREFRP Catalog Number: 9513
• Author: Kuhn, G. and C. A. Williams.
• Title: Evaluation of Streamflow Losses Along the Gunnison River from Whitewater Downstream to the Redlands Canal Diversion Dam, near Grand Junction Colorado, Water Years 1995-2003.
• USFW Year: 2004.
• USFW - Doc Type: Reston, VA.
• Copyright Material: NO

8 Evaluation of Streamflow Losses Along the Gunnison River from Whitewater Downstream to the Redlands Canal Diversion
Dam, near Grand Junction, Colorado, Water Years 1995-2003
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1995 1996 1997 1998 1999 2000 2001 2002
WATER YEAR
Figure 3. Discharge, shift, and percentage difference between discharge and discharge rating for measurements made
at the Whitewater station, water years 1995-2002.
Results for Water Years 199rr2002
When the discharge mass-balance analysis was made, data
for WY 2003 were not completed, so the analysis was made
only for WYs 1995-2002. Because final, published daily mean
discharge data were not available for the below-Redlands-dam
station, the archived, real-time unit (15-minute) data were
obtained (Jerry Thrush, Colorado Division of Water Resources,
written commun., 2003) and daily mean discharges for the
below-Redlands-dam station were computed from these data.
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Some of the unit-discharge values were missing because the
unit-stage values were not recorded for a variety of reasons. For
days with missing unit data, the mean of the available data was
used provided that no more than about 25 percent of the unit
values were missing. For days that the number of missing data
exceeded 25-percent, the daily mean discharge was estimated
(sometimes for more than 1 day) by linear interpolation
between the daily mean discharges on the adjacent days that had
a computed daily mean discharge. The interpolated values also
were compared to the difference between daily mean discharge