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) =
- 6.0297 + 0.9688 ln(Q)
+ 0.9666 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: | 91 |
|---|---|
| Mean squared error: | 0.00286225 |
| Multiple R2: | 0.991 |
| Bias correction (smearing) factor: | 1.0014 |
Explanatory Variables
| Variable | Value | Standard error |
|---|---|---|
| Intercept | -6.0297 | 0.1962 | ln(Q) | 0.9688 | 0.0114 | ln(SC) | 0.9666 | 0.0197 |
Correlation Matrix
| Intercept | ln(Q) | ln(SC) | |
|---|---|---|---|
| Intercept | 1 | -0.9396 | -0.986 |
| ln(Q) | -0.9396 | 1 | 0.8712 |
| ln(SC) | -0.986 | 0.8712 | 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