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Pennsylvania Real-time Water Quality

USGS station:

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Constituent:
Time period:
Model Form:

Model Form #1

log10(FCBR) = 1.68 + 0.879 log10(TURB) - 0.444 sin(2π D / 365) - 0.638 cos(2π D / 365)

where:

Model Archive Summary

The model archive summary for computed fecal coliform bacteria can be viewed in pdf form here.

Model Calibration

Basic Data

Number of measurements: 102
Mean squared error: 0.143641
Multiple R2: 0.708
Bias correction (smearing) factor: 1.45

Explanatory Variables

VariableValueStandard error
Intercept1.680.0705
log10(TURB) 0.8790.095
sin(2π D / 365) -0.4440.0533
cos(2π D / 365) -0.6380.1

Correlation Matrix

Interceptlog10(TURB) sin(2π D / 365) cos(2π D / 365)
Intercept1-0.4058-0.10710.6108
log10(TURB) -0.40581-0.25090.2592
sin(2π D / 365) -0.1071-0.25091-0.2704
cos(2π D / 365) 0.61080.2592-0.27041

Reference

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URL: http://nrtwq.usgs.gov/explore/modelinfo?site_no=01480870&pcode=99406&period=31d_all&timestep=uv
Page Contact Information: National Real-Time Water Quality Information
Page Last Modified: Wed 06 October 2010