|
<br />
<br />Table 6.--Comparison of natural dissolved-solids discharge estimated by the
<br />statistical models and by the annual mass balance for sites I, 3, and 9
<br />
<br />N
<br />~..
<br />o
<br />c.o
<br />
<br />Site
<br />number1
<br />
<br />1
<br />
<br />3
<br />
<br />9
<br />
<br />Model
<br />
<br />Standard
<br />error
<br />(tons per
<br />month)
<br />
<br />Coefficient
<br />of deter-
<br />mination,
<br />R2
<br />
<br />Mean annual (water years 1914-57)
<br />natural dissolved-solids discharge
<br />(tons)
<br />
<br />From
<br />model
<br />
<br />From mass
<br />balance
<br />
<br />4,800
<br />5,100
<br />5,000
<br />
<br />17,400
<br />17 ,600
<br />16,500
<br />
<br />4,800
<br />5,100
<br />5,100
<br />
<br />4,700
<br />5,200
<br />5,000
<br />
<br />18,800
<br />17,900
<br />16,400
<br />
<br />4,800
<br />5,100
<br />5,000
<br />
<br />0.95
<br />0.94
<br />0.94
<br />
<br />0,85
<br />0.86
<br />0,87
<br />
<br />0.94
<br />0,93
<br />0.93
<br />
<br />0.95
<br />0.94
<br />0.94
<br />
<br />0.84
<br />0.86
<br />0.88
<br />
<br />0,94
<br />0,93
<br />0,94
<br />
<br />Initial model calibration--historical data
<br />
<br />451,000
<br />1,981,000
<br />709,000
<br />
<br />549,000
<br />549,000
<br />549,000
<br />
<br />Additive
<br />Power
<br />Exponential
<br />
<br />Additive
<br />Power
<br />Exponential
<br />
<br />Additive
<br />
<br />Power
<br />Exponential
<br />
<br />1,082,000
<br />
<br />200
<br />
<br />1,218,000
<br />
<br />463,000
<br />463,000
<br />463,000
<br />
<br />236,000
<br />o
<br />3,400
<br />
<br />194,000
<br />194,000
<br />194,000
<br />
<br />Model recalibration--predevelopment estimates included
<br />
<br />1
<br />
<br />Additive
<br />
<br />485,000
<br />214,000
<br />562,000
<br />
<br />549,000
<br />549,000
<br />549,000
<br />
<br />Power
<br />Exponential
<br />
<br />3
<br />
<br />Additive
<br />
<br />810,000
<br />210,000
<br />487,000
<br />
<br />463,000
<br />463,000
<br />
<br />463,000
<br />
<br />Power
<br />
<br />Exponential
<br />
<br />9
<br />
<br />Additive
<br />Power
<br />Exponential
<br />
<br />233,000
<br />201,000
<br />191,000
<br />
<br />194,000
<br />194,000
<br />194,000
<br />
<br />lRefer to figure 1 for site location and table 1 for site description.
<br />
<br />20
<br />
|