Indiana Regression Models, by Publication Source
Downhour, M.S., Bunch, A.R., and Lathrop, T.R., 2021, Regression models for estimating sediment, nutrient concentrations and loads at School Branch at Brownsburg, Indiana, June 2015 through February 2019
| Station | Constituent | Model Form | n | R2 | BCF | Standard Errors of Coefficeints | Correlation Matrix Lower-Left |
|---|---|---|---|---|---|---|---|
| 03353420 | Total nitrogen | log10(TNR) = - 0.27 + 0.0438 log10(Q) + 0.444 sqrt(NN) | 44 | 0.975 | 1 | 0.0215, 0.0079, 0.0128 | 0.1555, -0.9272, -0.3789 |
| 03353420 | Total phosphorous | TPR = - 0.0013 + 0.0514 sqrt(TURB) | 48 | 0.739 | 1 | 0.0244, 0.0045 | -0.7476 |
| 03353420 | Suspended sediment | log10(SSR) = 0.368 - 0.0995 log10(Q) + 0.947 log10(TURB) | 32 | 0.954 | 1.05 | 0.0552, 0.0489, 0.0609 | 0.3005, -0.7229, -0.821 |
Lathrop, T.R., Bunch, A.R., and Downhour, M.S., 2019, Regression models for estimating sediment and nutrient concentrations and loads at the Kankakee River, Shelby, Indiana, December 2015 through May 2018
| Station | Constituent | Model Form | n | R2 | BCF | Standard Errors of Coefficeints | Correlation Matrix Lower-Left |
|---|---|---|---|---|---|---|---|
| 05518000 | Total nitrogen | log10(TN) = - 0.0525 + 0.47 sqrt(NN) - 5.53E-7 (SC)2 | 32 | 0.96 | 1.00173 | 0.0579, 0.0248, 9.6E-8 | -0.87, -0.87, 0.52 |
| 05518000 | Total phosphorus | TP = 0.02047 + 0.02255 sqrt(TURB) | 32 | 0.89 | 1 | 0.00711, 0.00141 | 0.9464 |
| 05518000 | Suspended sediment | log10(SSR) = 4.7904 + 0.5665 log10(TURB) - 1.3957 log10(SC) | 31 | 0.93 | 1.01055 | 1.295, 0.0502, 0.4514 | -0.74, -1, 0.71 |
Rasmussen, P.P., Gray, J.R., Glysson, G.D., and Ziegler, A.C., 2009, Guidelines and procedures for computing time-series suspended-sediment concentrations and loads from in-stream turbidity-sensor and streamflow data
| Station | Constituent | Model Form | n | R2 | BCF | Standard Errors of Coefficeints | Correlation Matrix Lower-Left |
|---|---|---|---|---|---|---|---|
| 03353200 | Suspended sediment | log10(SSR) = 0.6015 + 0.7837 log10(TURB) | 37 | 0.77 | 1.1722 | 0.0845, 0.0719 | 0.8789 |
| 03374100 | Suspended sediment | log10(SSR) = 0.3302 + 0.9682 log10(TURB) | 13 | 0.95 | 1.015 | 0.1071, 0.0606 | -0.9782 |
| 05515500 | Suspended sediment | SSR = - 8.662 + 14.362 sqrt(TURB) | 20 | 0.94 | 1 | 3.714, 0.873 | 0.9679 |
| 05516665 | Suspended sediment | log10(SSR) = 0.5645 + 0.7856 log10(TURB) | 22 | 0.83 | 1.0632 | 0.0913, 0.0796 | 0.9943 |
| 05517000 | Suspended sediment | log10(SSR) = 0.0854 + 1.2269 log10(TURB) | 17 | 0.84 | 1.1146 | 0.1942, 0.1395 | 0.9977 |
| 05517010 | Suspended sediment | log10(SSR) = 0.745 + 0.191 sqrt(TURB) | 27 | 0.91 | 1.083 | 0.057, 0.012 | 0.9454 |