Kansas Real-Time Water Quality

Kansas Real-Time Water Quality

NRTWQ Home >> Kansas >> View Data >> 07144100

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

Model Form #1

SO4 = 0.1 + 0.0592 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 Archive Summary

The model archive summary for computed sulfate can be viewed in pdf form here.

Model Calibration

Basic Data

Number of measurements:	131
Mean squared error:	35.485849
Multiple R²:	0.9244
Bias correction (smearing) factor:	1

Explanatory Variables

Variable	Value	Standard error
Intercept	0.1	1.084
SC	0.0592	0.0015

Correlation Matrix

	Intercept	SC
Intercept	1	-0.8762
SC	-0.8762	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

sign of intercept does not match cited model, which is given as: SO4 = 0.0592SC + 1.00. Old model used through 2006.