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(LDS) =
- 5.2633 + 0.9268 ln(Q)
+ 0.9063 ln(SC)
where:
- LDS is computed load diss. solids, in tons per day
- Q is computed discharge, stage-discharge rating curve, in cubic feet per second
- SC is specific conductance at 25 degrees Celsius, in microsiemens per centimeter
Model Calibration
Basic Data
| Number of measurements: | 50 |
|---|---|
| Mean squared error: | 0.00057121 |
| Multiple R2: | 0.9954 |
| Bias correction (smearing) factor: | 1.0003 |
Explanatory Variables
| Variable | Value | Standard error |
|---|---|---|
| Intercept | -5.2633 | 0.8159 | ln(Q) | 0.9268 | 0.0429 | ln(SC) | 0.9063 | 0.0703 |
Correlation Matrix
| Intercept | ln(Q) | ln(SC) | |
|---|---|---|---|
| Intercept | 1 | -0.9988 | -0.9963 |
| ln(Q) | -0.9988 | 1 | 0.9963 |
| ln(SC) | -0.9993 | 0.9963 | 1 |
Reference
- U.S. Bureau of Reclamation, 2013, U.S. Bureau of Reclamation, 2013, Quality of Water Colorado River Basin Progress Report No. 24: U.S. Department of Interior, Bureau of Reclamation, Upper Colorado Region