Kansas Real-Time Water Quality

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

Model Form #1

TP = 0.506 + 0.000567 TURB

where:

TP is computed total phosphorus, in milligrams per liter as phosphorus
TURB is turbidity, YSI model 6026, in formazin nephelometric units

Model Archive Summary

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

Model Calibration

Basic Data

Number of measurements:	36
Mean squared error:	0.03849444
Multiple R²:	0.5488
Bias correction (smearing) factor:	1

Explanatory Variables

Variable	Value	Standard error
Intercept	0.506	0.0451
TURB	0.000567	0.0001

Correlation Matrix

	Intercept	TURB
Intercept	1	-0.6882
TURB	-0.6882	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

This model is used to compute values at this station only from 1999 through 2006, the range of time when a 6026-model turbidity sensor was used. Beginning in 2007, a 6136-model turibidty sensor was installed, resulting in a change to the model.