Developed in partnership with the Lower Platte River Corridor Alliance and the Nebraska Environmental Trust
Model Form #1
TIN =
- 4.296 + 0.0119 SC
+ 0.0018 TURB
where:
- TIN is computed diss. nitrate + nitrite, in milligrams per liter as nitrogen
- SC is specific conductance at 25 degrees Celsius, in microsiemens per centimeter
- TURB is turbidity, YSI model 6136, in formazin nephelometric units
Model Calibration
Basic Data
| Number of measurements: | 44 |
|---|---|
| Mean squared error: | 0.3969 |
| Multiple R2: | 0.68 |
| Bias correction (smearing) factor: | 1 |
Explanatory Variables
| Variable | Value | Standard error |
|---|---|---|
| Intercept | -4.296 | 0.7831 | SC | 0.0119 | 0.0012 | TURB | 0.0018 | 0.0005 |
Correlation Matrix
| Intercept | SC | TURB | |
|---|---|---|---|
| Intercept | 1 | -0.9871 | -0.501 |
| SC | -0.9871 | 1 | 0.411 |
| TURB | -0.501 | 0.411 | 1 |
Reference
- Schaepe, Nathaniel J.; Soenksen, Philip J.; Rus, David L., 2014, Relations of water-quality constituent concentrations to surrogate measurements in the lower Platte River corridor, Nebraska, 2007 through 2011: U.S. Geological Survey Open-File Report 2014–1149, 16 p.