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 #2

NO3 = 0.473 + 1.001 log₁₀(TURB) - 1.3431 log₁₀(TEMP)

where:

NO3 is computed diss. nitrate, in milligrams per liter as nitrogen
TURB is turbidity, YSI EXO, in formazin nephelometric units
TEMP is water temperature, in degrees Celsius

Model Calibration

Basic Data

Number of measurements:	116
Mean squared error:	0.4719964804
Multiple R²:	0.49
Bias correction (smearing) factor:	1

Explanatory Variables

Variable	Value	Standard error
Intercept	0.473	0.210639
log₁₀(TURB)	1.001	0.102527
log₁₀(TEMP)	-1.3431	0.177876

Correlation Matrix

	Intercept	log₁₀(TURB)	log₁₀(TEMP)
Intercept	1	-0.4946	-0.49766
log₁₀(TURB)	-0.4946	1	-0.45801
log₁₀(TEMP)	-0.49766	-0.45801	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

New EXO2 Sensor installed 1-24-17.