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Scientific Investigations Report 2013–5016


Macrophyte and pH Buffering Updates to the Klamath River Water-Quality Model Upstream of Keno Dam, Oregon


Table 7. Goodness-of-fit statistics averaged over all calibration sites for the updated model of the Link River to Keno Dam reach of the Klamath River, Oregon.


[Abbreviations: °C. degrees Celsius; <, less than; µm3/mL, cubic micrometers per milliliter; mg/L, milligrams per liter; rl, reporting level; ×, times]


Constituent Unit Data type Range of
measured
values
Year Mean
error

Mean
absolute
error

Root mean
square error
Water temperature °C hourly 0–28 2006 -0.03 0.55 0.70
2007 0.06 0.63 0.78
2008 0.17 0.63 0.80
2009 -0.17 0.58 0.72
Dissolved oxygen mg/L hourly 0–20 2006 -0.02 0.98 1.37
2007 0.70 1.23 1.70
2008 -0.18 0.95 1.36
2009 -0.65 1.27 1.71
pH hourly 7–11 2006 -0.14 0.26 0.36
2007 -0.04 0.30 0.39
2008 -0.02 0.25 0.33
2009 -0.20 0.34 0.46
Ammonia mg/L grab <rl–1.7 2007 0.00 0.12 0.16
2008 -0.11 0.22 0.28
Nitrate mg/L grab <rl–0.8 2007 0.01 0.03 0.03
2008 0.01 0.03 0.03
Particulate nitrogen mg/L grab 0.06–4.0 2007 -0.21 0.29 0.49
2008 -0.17 0.25 0.39
Total nitrogen mg/L grab 0.6–5.9 2007 0.03 0.40 0.59
2008 -0.08 0.42 0.52
Orthophosphorus mg/L grab 0.01–0.27 2007 0.01 0.03 0.04
2008 0.00 0.02 0.03
Total phosphorus mg/L grab 0.06–0.50 2007 0.01 0.05 0.07
2008 0.00 0.04 0.05
Blue-green algae µm3/mL grab 0–113×106 2007 -4.7×106 7.6×106 14.9×106
2008 -2.2×106 3.4×106 5.8×106
Particulate carbon mg/L grab 0.5–18 2007 0.07 1.09 1.72
2008 0.41 1.31 1.89
Dissolved organic
carbon
mg/L grab 5–14 2007 0.37 0.72 1.12
2008 -0.39 0.71 0.88

First posted March 1, 2013

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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