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North Dakota Real-time Water Quality


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North Dakota Regression Models, by Publication Source

Galloway, J., 2014, Continuous Water-Quality Monitoring and Regression Analysis to Estimate Constituent Concentrations and Loads in the Red River of the North at Fargo and Grand Forks, North Dakota, 2003–12: U.S. Geological Survey Scientific Investigations Report 2014–5064, 37 p.

Station Constituent Model Form n R2 BCF Standard Errors of Coefficeints Correlation Matrix Lower-Left
05054000 Diss. solids DS = - 21.695 + 0.665 SC 75 0.985 1 12.173, 0.00953 -0.0668887
05054000 Chloride log10(CLR) = - 0.0264 + 0.609 log10(SC) - 0.16 log10(Q) - 0.0359 cos(4π D / 365) - 0.00734 sin(4π D / 365) 69 0.657 1.01004 0.065, 0.0826, 0.0212, 0.11, 0.0137
05054000 Sulfate SO4 = - 324.158 + 0.426 SC + 56.52 log10(Q) - 7.248 cos(4π D / 365) - 5.918 sin(4π D / 365) 75 0.941 1 17.865, 5.103, 0.0145, 2.908, 3.527
05054000 Diss. nitrate + nitrite log10(TIN) = - 3.146 + 0.578 log10(TURB) + 0.418 log10(Q) 84 0.46 1.37646 0.35, 0.0985, 0.141
05054000 Total phosphorus log10(TP) = - 2.253 + 0.468 log10(TURB) + 0.217 log10(Q) + 0.00881 cos(2π D / 365) - 0.137 sin(2π D / 365) 84 0.739 1.57426 0.118, 0.0376, 0.0489, 0.035, 0.0214
05054000 Suspended sediment log10(SSR) = - 0.0656 + 0.947 log10(TURB) + 0.128 log10(Q) 96 0.946 1.02777 0.101, 0.0296, 0.0295
05082500 Diss. solids DS = - 13.701 + 0.642 SC 66 0.975 1 12.489, 0.0129
05082500 Chloride log10(CLR) = - 0.928 + 0.911 log10(SC) - 0.141 log10(Q) - 0.0391 cos(4π D / 365) - 0.0209 sin(4π D / 365) - 2.29E-5 D 64 0.77 1.00196 0.059, 0.0209, 0.1, 0.0115, 0.0122, 8.68E-6
05082500 Sulfate SO4R = - 239.31 + 0.353 SC + 36.406 log10(Q) - 11.011 cos(2π D / 365) - 6.178 sin(2π D / 365) 65 0.894 1 14.667, 0.0155, 5.079, 3.342, 3.122
05082500 Diss. nitrate + nitrite TIN = - 0.133 + 0.00655 TURB 37 0.73 1 0.316, 0.000658
05082500 Total phosphorus TP = - 0.181 + 0.000859 TURB + 0.0824 log10(Q) - 0.0182 cos(2π D / 365) - 0.0413 sin(2π D / 365) 40 0.871 1 0.044, 6.61E-5, 0.0211, 0.0182, 0.0131
05082500 Suspended sediment log10(SSR) = 0.312 + 0.97 log10(TURB) 35 0.958 1.02717 0.095, 0.0346