Minnesota Real-time Water Quality

Minnesota Real-time Water Quality

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

Model Form #1

log₁₀(SSR) = - 0.892 + 0.106 log₁₀(Q) + 1.18 log₁₀(TURB)

where:

SSR is computed suspended sediment, in milligrams per liter
Q is computed discharge, stage-discharge rating curve, in cubic feet per second
TURB is turbidity, FTS DTS-12, in formazin nephelometric units

Model Calibration

Basic Data

Number of measurements:	12
Mean squared error:	0.017424
Multiple R²:	0.963
Bias correction (smearing) factor:	1.04

Explanatory Variables

Variable	Value	Standard error
Intercept	-0.892	0.196
log₁₀(Q)	0.106	0.118
log₁₀(TURB)	1.18	0.131

Correlation Matrix

	Intercept	log₁₀(Q)	log₁₀(TURB)
Intercept	1	-0.5078	-0.1424
log₁₀(Q)	-0.5078	1	-0.7714
log₁₀(TURB)	-0.1424	-0.7714	1

Reference

Rasmussen, P.P., Gray, J.R., Glysson, G.D., and Ziegler, A.Z., 2009, Guidelines and Procedures for Computing Time-Series Suspended-Sediment Concentrations and Loads from In-Stream Turbidity-Sensor and Streamflow Data: U.S. Geological Survey Techniques and Methods book 3, chap. C4, 53 p.