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

Ca = - 0.0587 + 0.0979 SC

where:

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

Model Archive Summary

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

Model Calibration

Basic Data

Number of measurements:	131
Mean squared error:	48.469444
Multiple R²:	0.9617
Bias correction (smearing) factor:	1

Explanatory Variables

Variable	Value	Standard error
Intercept	-0.0587	1.2588
SC	0.0979	0.0017

Correlation Matrix

	Intercept	SC
Intercept	1	-0.8755
SC	-0.8755	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.