SonTek, a Xylem brand
96
RiverSurveyor S5/M9 System Manual (February 2013)
RawGPSData structure
(This structure contains 50 columns per sample because the instru-
ment samples the GPS port at 50 Hz. However, because we require the GPS to output normal-
ly only up to 10 Hz, typically only the first 10 columns contain data, while the remaining 40 are
filled with 0)
Parameter Name Description
Size
VtgTimeStamp
$GPVTG time stamp for each high frequency GPS sample
NS x 50
VtgTmgTrue
$GPVTG true course made good for each high frequency GPS
sample (degrees)
NS x 50
VtgTmgMag
$GPVTG magnetic course made good for each high frequency
GPS sample (degrees)
NS x 50
VtgSogMPS
$GPVTG speed over ground for each high frequency GPS sam-
ple (m/s)
NS x 50
VtgMode
$GPVTG active mode for each high frequency GPS sample
NS x 50
GgaTimeStamp
$GPGGA time stamp for each high frequency GPS sample
NS x 50
GgaLatitude
$GPGGA latitude for each high frequency GPS sample
NS x 50
GgaLongitude
$GPGGA longitude for each high frequency GPS sample
NS x 50
GgaQuality
$GPGGA fix quality for each high frequency GPS sample
(4 = RTK, 2 = Differential, 1 = Standard, 0 = Invalid)
NS x 50
GgaAltitude
$GPGGA altitude above sea level for each high frequency GPS
sample (m)
NS x 50
GgaUTC
$GPGGA UTC for each high frequency GPS sample
(HHMMSS.S)
NS x 50
Setup structure
Parameter Name
Description
Size
startEdge
Start edge (0 = Left bank; 1 = Right bank)
NA
magneticDeclination
Magnetic Declination (degrees)
NA
transectAzimuth
Transect azimuth (Stationary measurements)
NA
coordinateSystem
Coordinate system (0 = Beam; 1 = XYZ; 2 = ENU)
NA
trackReference
Track reference (0 = System; 1 = Bottom Track; 2 =
GPS GGA; 3 = GPS VTG)
NA
velocityReference
Velocity reference (0 = System; 1 = Bottom Track; 2
= GPS GGA; 3 = GPS VTG)
NA
depthReference
Depth reference (0 = Vertical beam; 1 = Bottom
Track)
NA
userSalinity
User input salinity (ppt)
NA
sensorDepth
Transducer depth (m)
NA
screeningDistance
Vertical screening distance (m)
NA
Edges_0__DistanceToBank
Start Edge: Distance to the bank
NA
Edges_0__EstimatedQ
Start Edge: Estimated discharge
NA
Edges_0__Method
Start Edge: Method (0 = User input discharge; 1 =
Vertical bank; 2 = Sloped bank)
NA
Edges_1__DistanceToBank
End Edge: Distance to the bank
NA
Edges_1__EstimatedQ
End Edge: Estimated discharge
NA
Edges_1__Method
End Edge: Method (0 = User input discharge; 1 =
Vertical bank; 2 = Sloped bank)
NA
RatedDischarge
User input rated discharge
NA
extrapolation_Top_nFitType
Profile Extrapolation - Top: Fit equation type (0 =
Constant fit; 1 = Power fit)
NA
extrapolation_Top_nEntireProfil
Profile Extrapolation - Top: Fit (0 = Use entire profile;
1 = User selected number of cells)
NA
extrapolation_Top_dExponent
Profile Extrapolation - Top: Power fit exponent
NA
