SonTek RS5 User Manual (August 2020) 145
Calculated discharge variables and the data
used to compute them
Core system related parameters: Compass,
Temperature, Time, SNR, Voltage and Profiling
settings
System frequencies and transformation matrices
Water velocity and profiling variables in
coordinates selected for output
BottomTrack Structure
Depth for each beam (including vertical beam) for each
sample, including the Transducer Depth. The order of
beams is 1-2-3-4-VB.
Vertical Beam depth for each sample, including the
Transducer Depth
Mean Bottom Track depth for each sample, including the
Transducer Depth and compensation for tilt. This is the
mean of the depth measured by each active transducer
and projected in vertically below of the ADP
Bottom Track Velocity for each direction (or beam, if
exported in Beam coordinates) for each sample
Bottom Track depth for each beam for each sample,
including the Transducer Depth and compensation for tilt
Frequency of Bottom Track data for each sample
(correlate with Frequency parameter from
Transformation_Matrices structure)
Units for above parameters
General Structure
Indicates whether a beam is disabled using the Beam
Switching feature. If beam is used, ‘-1’ will be
displayed. Otherwise, the beam number less 1(0,1,2,
or 3) will be displayed for those samples with that
beam disabled (beams 1,2,3, or 4, accordingly).
Sample type (Start Edge, Transect Section, End Edge)
Total cumulative duration
This corresponds to the setting in the Samples tab
called “Use BT” which allows the user to disable that
sample due to bad bottom track. If the sample is used,
the value is 1, otherwise it is 0.