U. S. Geological Survey

Water Resources of Michigan

Table 1 - An acoustic Doppler current profiler survey of flow velocities in St. Clair River, a connecting channel of the Great Lakes

US Geological Survey Open-File Report 03-119

By: David J. Holtschlag and John A. Koschik

Transect data (Comment number 1)
ADCP Survey of St. Clair River: CS-001
 
(Comment number 2)
USACE (Transect run left to right)
 
Depth cell length (cm) Blanking distance (cm) ADCP depth (cm) Number of depth cells Number of pings per ensemble Time per ensemble in 1/100s of a second Profiling mode.
50 25 29 56 1 20 1
 
Ensemble data summary
Year (last digit) Month Day Hour Minute Second 1/100s of second Ensemble number Number of ensembles Pitch (degrees) Roll (degrees) Corrected heading (degrees) ADCP Temperature in degrees Celsius
2 5 20 9 2 38 69 376 1 -1.12 0.6 35.95 9.55
 
(Bottom-track velocity (ft/s): East
(+)		 West
(-)		 North
(+)		 South
(-)		 Vertical Up(+)

Down
(-)

 Error Not applicable
(NA)		 NA NA NA Depth: Beams 1-4 (ft)
  1.64 0.76 0.05 0.03 0 469.18 0 10.07 5.99 6.22 6.22 5.99
 
Total distance in ft Total elapsed time in seconds Distance north (ft) Distance east (ft) Distance made good (ft).
0.87 0.48 0.37 0.79 0.87
 
Latitude Longitude Measured discharge Top discharge Bottom discharge
43.004025 -82.41371 -32768 -32768 0.9
 
Discharge ft3/s: Measured Top Bottom Start-shoreline Start distance to shore (ft) End-shoreline discharge (ft3/s) End distance to shore (ft) Starting depth of measured layer (ft) Ending depth of measured layer (ft)
  0 -0.1 0 0 20 0 0 3.73 3.73
 
Number of bins to follow Measurement unit (cm or ft) Velocity reference Intensity units Intensity scale factor Sound absorption factor
35 ft BT dB 0.45 0.115
Bin data
Depth in ft Velocity magnitude in ft/s Measured velocity direction in degrees East velocity in ft/s North velocity in ft/s Vertical velocity in ft/s Error velocity in ft/s Backscatter in percent (beam 1) Backscatter in percent (beam 2) Backscatter in percent (beam 3) Backscatter in percent (beam 4) Percent good Flow, in cubic feet per second
3.73 0.5 241.35 -0.4 -0.2 0 -0.2 99 89.1 90.4 89.1 100 -0.05
 
Depth in ft Velocity magnitude in ft/s Measured velocity direction in degrees East velocity in ft/s North velocity in ft/s Vertical velocity in ft/s Error velocity in ft/s Backscatter in percent (beam 1) Backscatter in percent (beam 2) Backscatter in percent (beam 3) Backscatter in percent (beam 4) Percent good Flow, in cubic feet per second
5.37 -32768 -32768 -32768 -32768 -32768 -32768 255 109.0 109.0 255 0 2147483647
7.01 -32768 -32768 -32768 -32768 -32768 -32768 255 255 255 255 0 2147483647
8.65 -32768 -32768 -32768 -32768 -32768 -32768 255 255 255 255 0 2147483647
. (Additional velocity data at each depth bin).
Depth in ft Velocity magnitude in ft/s Measured velocity direction in degrees East velocity in ft/s North velocity in ft/s Vertical velocity in ft/s Error velocity in ft/s Backscatter in percent (beam 1) Backscatter in percent (beam 2) Backscatter in percent (beam 3) Backscatter in percent (beam 4) Percent good Flow, in cubic feet per second
59.51 -32768 -32768 -32768 -32768 -32768 -32768 255 255 255 255 0 2147483647

Citation:

Holtschlag, David J. and John A. Koschik, 2003, An acoustic Doppler current profiler survey of flow velocities in St. Clair River, a connecting channel of the Great Lakes, Date Posted: March 28, 2003, US Geological Survey Open-File Report 03-119 [http://mi.water.usgs.gov/pubs/OF/OF03-119/index.php]

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