[Note: this is an internal working document of a
USGS-SFSU
collaboration. Data, analysis and results herin should not be
considered as final or accurate. Final results will be presented in
print.]
Discharge Errors
due to
Uncertainties in the Rating Curve
(
references
|Delta Discharge
|Rating Curves
|Gaussian rating curve
)
The UVM velocity can be used to determine discharge if it is calibrated
by ADCP measurements of the full vector velocity distribution. This
leads to a rating curve,
showing the mean channel velocity
as a function of UVM velocity. Here we discuss the rating curves from
three different calibrations. We have fit a model for the rating curve
to these three data sets. We discuss the variation of the daily
discharge calculated from the different rating curves. We use this to
estimate the error on the discharge due to the uncertainty in the
calibration.
