Kansas Real-Time Water Quality

Kansas Real-Time Water Quality

NRTWQ Home >> Kansas >> View Data >> 06889000

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

Funding to maintain the continuous water-quality monitor at this site ended on September 30, 2005.

Model Form #1

TIN = - 1.54 + 0.742 log₁₀(Q) - 0.329 log₁₀(TEMP)

where:

TIN is computed diss. nitrate + nitrite, in milligrams per liter as nitrogen
Q is computed discharge, stage-discharge rating curve, in cubic feet per second
TEMP is water temperature, in degrees Celsius

Model Calibration

Basic Data

Number of measurements:	28
Mean squared error:	0.16048036
Multiple R²:	0.49
Bias correction (smearing) factor:	1

Explanatory Variables

Variable	Value	Standard error
Intercept	-1.54	0.5854
log₁₀(Q)	0.742	0.1704
log₁₀(TEMP)	-0.329	0.1341

Correlation Matrix

	Intercept	log₁₀(Q)	log₁₀(TEMP)
Intercept	1	-0.9629	-0.1462
log₁₀(Q)	-0.9629	1	-0.09118
log₁₀(TEMP)	-0.1462	-0.09118	1

Reference

Rasmussen, T.J., Ziegler, A.C., and Rasmussen, P.P., 2005, Estimation of Constituent Concentrations, Densities, Loads, and Yields in Lower Kansas River, Northeast Kansas, Using Regression Models and Continuous Water-Quality Monitoring, January 2000 Through December 2003: U.S. Geological Survey Scientific Investigations Report 2005-5165, 117 p.