At this site, real-time estimates of water quality depend on the availability of instantaneous discharge and specific conductivity measurements. During winter months, real-time water quality estimates may not be available for this site due to effects of ice.
Model Form #1
ln(Se) =
- 8.9887 + 1.545 ln(SC)
where:
- Se is computed selenium, in micrograms per liter
- SC is specific conductance at 25 degrees Celsius, in microsiemens per centimeter
Model Calibration
Basic Data
| Number of measurements: | 9 |
|---|---|
| Mean squared error: | 0.01089936 |
| Multiple R2: | 0.972587 |
| Bias correction (smearing) factor: | 1.008 |
Explanatory Variables
| Variable | Value | Standard error |
|---|---|---|
| Intercept | -8.9887 | 0.7978 | ln(SC) | 1.545 | 0.1275 |
Correlation Matrix
| Intercept | ln(SC) | |
|---|---|---|
| Intercept | 1 | -0.9982 |
| ln(SC) | -0.9982 | 1 |
Reference
- Linard, J.I., Schaffrath, K.R., 2014, Regression models for estimating salinity and selenium concentrations at selected sites in the upper Colorado River Basin, Colorado: 2009 - 2012 (in publication process): U.S. Geological Survey Open File Report 2014-1015, 28 p.