Kansas Real-Time Water Quality

Kansas Real-Time Water Quality

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USGS station:	Go to NWISWeb
Constituent:
Time period:
Model Form:

Funding to maintain the continuous water-quality monitor at this site ended on December 31, 2007.

Model Form #1

log₁₀(Na) = - 2.09 + 1.26 log₁₀(SC)

where:

Na is computed sodium, in milligrams per liter
SC is specific conductance at 25 degrees Celsius, in microsiemens per centimeter

Model Calibration

Basic Data

Number of measurements:	25
Mean squared error:	0.00767376
Multiple R²:	0.89
Bias correction (smearing) factor:	1.02

Explanatory Variables

Variable	Value	Standard error
Intercept	-2.09	0.2392
log₁₀(SC)	1.26	0.0935

Correlation Matrix

	Intercept	log₁₀(SC)
Intercept	1	-0.9973
log₁₀(SC)	-0.9973	1

Reference

Rasmussen, T.J., Lee, C.J., and Ziegler, A.C., 2008, Estimation of Constituent Concentrations, Loads, and Yields in Streams of Johnson County, Northeast Kansas, Using Continuous Water-Quality Monitoring and Regression Models, October 2002 through December 2006: U.S. Geological Survey Scientific Investigations Report 2008-5014, 103 p.