Kansas Real-Time Water Quality


NRTWQ Home >> Kansas >> View Data >> 07144100
USGS station:

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Constituent:
Time period:
Model Form:

Model Form #3

log10(ATRR) = - 1.62 + 0.779 log10(TURB) + 0.385 sin(2π D / 365) - 0.278 cos(2π D / 365)

where:

Model Archive Summary

The model archive summary for computed atrazine can be viewed in pdf form here.

Model Calibration

Basic Data

Number of measurements: 44
Mean squared error: 0.190969
Multiple R2: 0.69
Bias correction (smearing) factor: 1.5

Explanatory Variables

VariableValueStandard error
Intercept-1.620.204
log10(TURB) 0.7790.115
sin(2π D / 365) 0.3850.102
cos(2π D / 365) -0.2780.106

Correlation Matrix

Interceptlog10(TURB) sin(2π D / 365) cos(2π D / 365)
Intercept1-0.9280.135-0.117
log10(TURB) -0.9281-0.2530.287
sin(2π D / 365) 0.135-0.2531-0.104
cos(2π D / 365) -0.1170.287-0.1041

Reference