Kansas Real-Time Water Quality

Kansas Real-Time Water Quality

NRTWQ Home >> Kansas >> View Data >> 07143672

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

Model Form #1

Na = - 15.4 + 0.107 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:	157
Mean squared error:	114.0624
Multiple R²:	0.9662
Bias correction (smearing) factor:	1

Explanatory Variables

Variable	Value	Standard error
Intercept	-15.4	1.7505
SC	0.107	0.0016

Correlation Matrix

	Intercept	SC
Intercept	1	-0.8734
SC	-0.8734	1

Reference

Christensen, V.G., Ziegler, A.C., Rasmussen, P.P., and Jian, Xiaodong, 2003, Continuous Real-Time Water-Quality Monitoring of Kansas Streams, in Proceedings of 2003 Spring Specialty Conference on Agricultural Hydrology and Water Quality, May 12-14, 2003, Kansas City, Missouri: Middleburg, Virginia, American Water Resources Association, AWRA Technical Publication Series No. TPS-03-1, compact disc.

Notes

Old model used through 2006.