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

log₁₀(SO4) = - 1.07 + 0.9005 log₁₀(SC)

where:

SO4 is computed sulfate, in milligrams per liter as sulfate
SC is specific conductance at 25 degrees Celsius, in microsiemens per centimeter

Model Calibration

Basic Data

Number of measurements:	158
Mean squared error:	0.01256641
Multiple R²:	0.8854
Bias correction (smearing) factor:	1.03489

Explanatory Variables

Variable	Value	Standard error
Intercept	-1.07	0.0752
log₁₀(SC)	0.9005	0.0259

Correlation Matrix

	Intercept	log₁₀(SC)
Intercept	1	-0.9929
log₁₀(SC)	-0.9929	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.