Kansas Real-Time Water Quality

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Kansas Real-Time Water Quality

NRTWQ Home >> Kansas >> View Data >> 06892495

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) = - 2.84 + 1.6 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:	23
Mean squared error:	0.005184
Multiple R²:	0.94
Bias correction (smearing) factor:	1.01

Explanatory Variables

Variable	Value	Standard error
Intercept	-2.84	0.2376
log₁₀(SC)	1.6	0.0855

Correlation Matrix

	Intercept	log₁₀(SC)
Intercept	1	-0.998
log₁₀(SC)	-0.998	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.

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URL: http://nrtwq.usgs.gov/explore/modelinfo?site_no=06892495&pcode=00930&period=2007_all&timestep=uv
Page Contact Information: National Real-Time Water Quality Information
Page Last Modified: Wed 06 October 2010