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) =
- 7.487 + 1.0556 ln(Q)
+ 1.0927 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: | 66 |
|---|---|
| Mean squared error: | 0.00087025 |
| Multiple R2: | 0.9944 |
| Bias correction (smearing) factor: | 1.0004 |
Explanatory Variables
| Variable | Value | Standard error |
|---|---|---|
| Intercept | -7.487 | 0.584 | ln(Q) | 1.0556 | 0.0306 | ln(SC) | 1.0927 | 0.0564 |
Correlation Matrix
| Intercept | ln(Q) | ln(SC) | |
|---|---|---|---|
| Intercept | 1 | -0.996 | -0.9984 |
| ln(Q) | -0.996 | 1 | 0.9894 |
| ln(SC) | -0.9984 | 0.9894 | 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