California Real-time Water Quality

California Real-time Water Quality

NRTWQ Home >> California >> View Data >> 09427520

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

Model Form #1

ln(LDS) = - 7.4268 + 1.002 ln(Q) + 1.1463 ln(SC)

where:

LDS is computed load diss. solids, in tons per day
Q is computed discharge, stage-discharge rating curve, in cubic feet per second
SC is specific conductance at 25 degrees Celsius, in microsiemens per centimeter

Model Calibration

Basic Data

Number of measurements:	301
Mean squared error:	0.00074529
Multiple R²:	0.9956
Bias correction (smearing) factor:	1.0004

Explanatory Variables

Variable	Value	Standard error
Intercept	-7.4268	0.4021
ln(Q)	1.002	0.0038
ln(SC)	1.1463	0.0573

Correlation Matrix

	Intercept	ln(Q)	ln(SC)
Intercept	1	-0.2406	-0.8641
ln(Q)	-0.2406	1	0.1567
ln(SC)	-0.8641	0.1567	1

Reference

U.S. Bureau of Reclamation, 2013, U.S. Bureau of Reclamation, 2013, Quality of Water Colorado River Basin Progress Report No. 24: U.S. Department of Interior, Bureau of Reclamation, Upper Colorado Region