Kansas Real-Time Water Quality

Kansas Real-Time Water Quality

NRTWQ Home >> Kansas >> View Data >> 06888990

USGS station:	Go to NWISWeb
Constituent:
Time period:
Model Form:

Model Form #1

log₁₀(CHLA) = 0.687 + 1.26 log₁₀(Chls)

where:

CHLA is computed chlorophyll-a, in micrograms per liter
Chls is chlorophylls, in relative fluorescence units

Model Archive Summary

The model archive summary for computed chlorophyll-a can be viewed in pdf form here.

Model Calibration

Basic Data

Number of measurements:	34
Mean squared error:	0.039204
Multiple R²:	0.809
Bias correction (smearing) factor:	1.1

Explanatory Variables

Variable	Value	Standard error
Intercept	0.687	0.0482
log₁₀(Chls)	1.26	0.106

Correlation Matrix

	Intercept	log₁₀(Chls)
Intercept	1	-0.71
log₁₀(Chls)	-0.71	1

Reference

Williams, T.J., 2023, Linear regression model documentation for computing water-quality constituent concentrations or densities using continuous real-time water-quality data for the Kansas River above Topeka Weir at Topeka, Kansas, November 2018 through June 2021: U.S. Geological Survey Scientific Investigations Report 2022-5130, 14 p.