Virginia Real-Time Water Quality

Virginia Real-Time Water Quality

NRTWQ Home >> Virginia >> View Data >> 01646305

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

Model Form #1

ln(SSR) = 0.889 + 0.636 ln(TURB) + 0.426 ln(Q)

where:

SSR is computed suspended sediment, in milligrams per liter
TURB is turbidity, YSI model 6136, in formazin nephelometric units
Q is computed discharge, stage-discharge rating curve, in cubic feet per second

Model Calibration

Basic Data

Number of measurements:	233
Mean squared error:	0.62473216
Multiple R²:	0.88
Bias correction (smearing) factor:	1.38

Explanatory Variables

Variable	Value	Standard error
Intercept	0.889	0.112
ln(TURB)	0.636	0.049
ln(Q)	0.426	0.053

Correlation Matrix

	Intercept	ln(TURB)	ln(Q)
Intercept	1	-0.003	0.001
ln(TURB)	-0.003	1	-0.002
ln(Q)	0.001	-0.002	1

Reference

Jastram, J.D., 2014, Streamflow, Water Quality, and Aquatic Macroinvertebrates of Selected Streams in Fairfax County, Virginia, 2007–12: U.S. Geological Survey Scientific Investigations Report 2014–5073, 68 p.