Kansas Real-Time Water Quality

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

Model Form #1

log₁₀(TSSR) = 0.1674 + 1.049 log₁₀(TURB)

where:

TSSR is computed total suspended solids, in milligrams per liter
TURB is turbidity, YSI EXO, in formazin nephelometric units

Model Calibration

Basic Data

Number of measurements:	78
Mean squared error:	0.03157729
Multiple R²:	0.8926
Bias correction (smearing) factor:	1.07664

Explanatory Variables

Variable	Value	Standard error
Intercept	0.1674	0.07897
log₁₀(TURB)	1.049	0.04333

Correlation Matrix

A correlation matrix is not available for this model. Therefore, the prediction interval was calculated by assuming that there is no correlation between the explanatory variables.

Reference

Williams, T.J., 2021, Linear Regression Model Documentation and Updates for Computing Water-Quality Constituent Concentrations or Densities using Continuous Real-Time Water-Quality Data for the Kansas River, Kansas, July 2012 through September 2019: U.S. Geological Survey Open-File Report 2021-1018, 18 p.

Notes

Model derived using Tobit regression estimation (absolute maximum likelihood estimation) approach.