SonTek, a Xylem brand
118 RiverSurveyor S5/M9 System Manual (February 2013)
RiverSurveyor Live v3.50
1. Improved Compass Calibration Feedback
The compass calibration feedback for the new SonTek compass (v2.00 or later) is improved.
The compass calibration dialog includes a time series chart and graphical interface to guide
the user to perform the best possible compass calibration. See Section 6.9.1 for details
about the Compass Calibration.
2. Modified Algorithm for USGS Loop Method
The USGS Loop Method was updated to support the latest algorithms (MATLAB v4.03) from
the USGS Office of Surface Water (OSW). New error messages and warnings are imple-
mented to collect and analyze loop method data correctly. See Appendix H for details about
the Loop Method.
RiverSurveyor Stationary Live v2.50
1. Under Ice Measurement Feature
This feature lets you collect and analyze a stationary measurement under ice.
2. Profile extrapolation (Station by Station)
1. Ability to change profile extrapolation for each station.
2. Following extrapolation methods are available for bottom fit:
a. Power fit
b. Constant
c. No Slip
3. Following extrapolation methods are available for top fit:
a. Power fit
b. Constant
c. 3 point slope (open water) and No Slip (under ice)
4. Ability to apply profile extrapolation to all stations globally
5. Default profile extrapolation for top fit and bottom fit
a. Open water – power fit for entire profile
b. Ice or Ice/Slush – No Slip with 20%
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