Virginia Real-Time Water Quality

Virginia Real-Time Water Quality

NRTWQ Home >> Virginia >> View Data >> 01645704

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

Model Form #1

ln(SSR) = 0.445 + 0.867 ln(TURB) + 0.274 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:	205
Mean squared error:	0.46294416
Multiple R²:	0.91
Bias correction (smearing) factor:	1.36

Explanatory Variables

Variable	Value	Standard error
Intercept	0.445	0.113
ln(TURB)	0.867	0.048
ln(Q)	0.274	0.056

Correlation Matrix

	Intercept	ln(TURB)	ln(Q)
Intercept	1	-0.0004	-0.002
ln(TURB)	-0.0004	1	-0.002
ln(Q)	-0.002	-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.