Xylem SonTek FlowTracker2 - 9.3.3 Review Station Measurement

SonTek – a Xylem brand
FlowTracker2 User’s Manual (January 2019)
143
Variable
Description
Units
Decimal
applied (if applicable).
σV
Standard error of X velocity component.
m/s or ft/s
4
SNR
Mean signal to noise ratio. Average of beam 1
and 2 SNR during point measurement.
dB 3
Angle
Flow angle relative to X direction. Angle
between the mean X velocity component and
mean Y velocity component.
Degree 2
Bnd
Boundary QC value.
n/a
n/a
Tilt
Mean wading rod angle during point velocity
measurement.
Degree 2
Temp
Mean temperature during point measurement.
°C or °F
2
Depth
Mean water depth from water surface during
point measurement
m or ft 3
Pressure
Mean water pressure during point
measurement
dbar 3
Review Station Measurement 8.3.4.4
Review Station measurement screen consists of tabular report and velocity distribution
plot supplied at the completion of all point velocity measurements at a station. The
variables supplied in the report are dependent on the features activated on the handheld,
velocity method selected and the discharge calculation method. The velocity distribution
plot gives graphical presentation of the point velocity measurements against theoretical
1/6
th
power law.
Review Station screen consists of tabular summary
of all measurements performed at the station,
a) Review Station, Table 8:11.
b) Velocity Distribution Plot,
i). Point velocity measurements at station
against theoretical 1/6
th
power law.
ii). Graphical presentation of how velocity
profile compare to theoretical 1/6
th
power
law.
Figure 8:37 - Review Station