Kansas Real-Time Water Quality

Kansas Real-Time Water Quality

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

Funding to maintain the continuous water-quality monitor at this site ended on December 31, 2003.

Model Form #1

TKN = 0.469 + 0.0234 TEMP - 6.55E-5 SC + 0.00317 TURB

where:

TKN is computed total org. N + NH3, in milligrams per liter as nitrogen
TEMP is water temperature, in degrees Celsius
SC is specific conductance at 25 degrees Celsius, in microsiemens per centimeter
TURB is turbidity, YSI model 6026, in formazin nephelometric units

Model Calibration

Basic Data

Number of measurements:	20
Mean squared error:	0.0007974976
Multiple R²:	0.806
Bias correction (smearing) factor:	1

Explanatory Variables

Variable	Value	Standard error
Intercept	0.469	0.196506
TEMP	0.0234	0.0087763
SC	-6.55E-5	3.41E-5
TURB	0.00317	0.0006893

Correlation Matrix

	Intercept	TEMP	SC	TURB
Intercept	1	-0.466663	-0.489197	-0.480798
TEMP	-0.466663	1	-0.393039	-0.372011
SC	-0.489197	-0.393039	1	0.591246
TURB	-0.480798	-0.372011	0.591246	1

Reference

Christensen, V.G., 2001, Characterization of Surface-Water Quality Based on Real-Time Monitoring and Regression Analysis, Quivira National Wildlife Refuge, South-Central Kansas, December 1998 Through June 2001: U.S. Geological Survey Water-Resources Investigations Report 01-4248, 28 p.