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Colorado Real-time Water Quality Surrogates

Colorado Regression Models, by Publication Source

Linard, J.I., Schaffrath, K.R., 2014, Regression models for estimating salinity and selenium concentrations at selected sites in the Upper Colorado River Basin, Colorado, 2009 - 2012

Station Constituent Model Form n R2 BCF Standard Errors of Coefficeints Correlation Matrix Lower-Left
09136100 Selenium ln(Se) = - 6.387 + 1.0764 ln(SC) 16 0.986016 1.005 0.2171, 0.0331 -0.9922
09144250 Selenium ln(Se) = - 8.9887 + 1.545 ln(SC) 9 0.972587 1.008 0.7978, 0.1275 -0.9982
09147500 Selenium ln(Se) = - 9.5214 + 1.4805 ln(SC) 10 0.930232 1.004 2.0051, 0.3212 -0.9996
09149500 Selenium ln(Se) = - 10.985 + 1.8861 ln(SC) + 0.2214 sin(2π D / 365) - 0.0909 cos(2π D / 365) 10 0.930232 1.004 1.4854, 0.2098, 0.0804, 0.0612 -0.9997, -0.7385, 0.7397, 0.4494, -0.4438, -0.3114
09152500 Selenium ln(Se) = - 7.868 + 1.4053 ln(SC) + 0.0418 sin(2π D / 365) + 0.1408 cos(2π D / 365) 16 0.909488 1.006 1.2724, 0.192, 0.066, 0.0619 -0.9996, -0.7375, 0.7351, 0.5787, -0.575, -0.4884
09163500 Selenium ln(Se) = - 6.0433 + 1.053 ln(SC) - 0.092 sin(2π D / 365) - 0.1049 cos(2π D / 365) 18 0.956 1.003 0.6665, 0.0982, 0.0523, 0.0401 -0.9995, -0.6566, 0.6583, 0.7871, -0.7883, -0.5403
09169500 Diss. solids ln(DSR) = - 0.7738 + 1.0322 ln(SC) 16 0.9693 1.002 0.3102, 0.0474 -0.9984
09171100 Diss. solids ln(DSR) = - 0.5358 + 0.9931 ln(SC) 15 0.9824 1.004 0.2645, 0.0355 -0.9954
09251000 Diss. solids ln(DSR) = - 1.37138 + 0.0168 ln(Q) + 1.1239 ln(SC) 66 0.999 1.0005 0.0881, 0.0041, 0.0115 -0.7326, -0.968, 0.5426
09251000 Load diss. solids ln(LDS) = - 7.287 + 1.0168 ln(Q) + 1.1239 ln(SC) 66 0.999 1.0005 0.0881, 0.0041, 0.0115 -0.7326, -0.968, 0.5426
09306200 Diss. solids ln(DSR) = 7.5371 - 0.2226 ln(Q) 12 0.9424 1 0.054, 0.0172 -0.9644
09306222 Diss. solids ln(DSR) = 8.1063 - 0.3043 ln(Q) 12 0.929 1 0.0874, 0.0266 -0.9631
09306255 Diss. solids ln(DSR) = 0.3078 + 0.917 ln(SC) 12 0.9777 1 0.3425, 0.0418 -0.9998

U.S. Bureau of Reclamation, 2013, Quality of Water Colorado River Basin Progress Report No. 24

Station Constituent Model Form n R2 BCF Standard Errors of Coefficeints Correlation Matrix Lower-Left
09071750 Diss. solids ln(DSR) = - 1.57139 + 0.0556 ln(Q) + 1.0927 ln(SC) 66 0.9944 1.0004 0.584, 0.0306, 0.0564 -0.996, -0.9984, 0.9894
09071750 Load diss. solids ln(LDS) = - 7.487 + 1.0556 ln(Q) + 1.0927 ln(SC) 66 0.9944 1.0004 0.584, 0.0306, 0.0564 -0.996, -0.9984, 0.9894
09095500 Diss. solids ln(DSR) = 0.652315 - 0.0732 ln(Q) + 0.9063 ln(SC) 50 0.9954 1.0003 0.8159, 0.0429, 0.0703 -0.9988, -0.9993, 0.9963
09095500 Load diss. solids ln(LDS) = - 5.2633 + 0.9268 ln(Q) + 0.9063 ln(SC) 50 0.9954 1.0003 0.8159, 0.0429, 0.0703 -0.9988, -0.9993, 0.9963
09152500 Diss. solids ln(DSR) = - 0.983786 - 0.0124 ln(Q) + 1.104 ln(SC) 16 0.909488 1.006 0.2178, 0.0114, 0.022 -0.8958, -0.964, 0.764
09152500 Load diss. solids ln(LDS) = - 6.8994 + 0.9876 ln(Q) + 1.104 ln(SC) 16 0.909488 1.006 0.2178, 0.0114, 0.022 -0.8958, -0.964, 0.764

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