Kansas Real-Time Water Quality

USGS station:

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Constituent:
Time period:
Model Form:

Model Form #3

log10(TP) = - 1.6052 - 0.0633 sin(2π D / 365) - 0.1357 cos(2π D / 365) + 0.439 log10(TURB)

where:

Model Calibration

Basic Data

Number of measurements: 109
Mean squared error: 0.01860496
Multiple R2: 0.69
Bias correction (smearing) factor: 1.0477

Explanatory Variables

VariableValueStandard error
Intercept-1.60520.0618
sin(2π D / 365) -0.06330.019
cos(2π D / 365) -0.13570.0218
log10(TURB) 0.4390.052

Correlation Matrix

Interceptsin(2π D / 365) cos(2π D / 365) log10(TURB)
Intercept1-0.2424-0.3435-0.9747
sin(2π D / 365) -0.24241-0.00180.2411
cos(2π D / 365) -0.3435-0.001810.4197
log10(TURB) -0.97470.24110.41971

Reference