Currently displayed models were developed using data from YSI 6-series sonde. Equipment was upgraded to YSI EXO sonde on 8/24/20. This will introduce additional uncertainty that may not be reflected in the computed confidence limits.
Model Form #1
log10(SSR) =
0.0854 + 1.2269 log10(TURB)
where:
- SSR is computed suspended sediment, in milligrams per liter
- TURB is turbidity, YSI model 6136, in formazin nephelometric units
Model Archive Summary
The model archive summary for computed suspended sediment can be viewed in pdf form here.
Model Calibration
Basic Data
| Number of measurements: | 17 |
|---|---|
| Mean squared error: | 0.0441 |
| Multiple R2: | 0.84 |
| Bias correction (smearing) factor: | 1.1146 |
Explanatory Variables
| Variable | Value | Standard error |
|---|---|---|
| Intercept | 0.0854 | 0.1942 | log10(TURB) | 1.2269 | 0.1395 |
Correlation Matrix
| Intercept | log10(TURB) | |
|---|---|---|
| Intercept | 1 | 0.9977 |
| log10(TURB) | 0.9977 | 1 |
Reference
- Rasmussen, P.P., Gray, J.R., Glysson, G.D., and Ziegler, A.Z., 2009, Guidelines and Procedures for Computing Time-Series Suspended-Sediment Concentrations and Loads from In-Stream Turbidity-Sensor and Streamflow Data: U.S. Geological Survey Techniques and Methods book 3, chap. C4, 53 p.