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Abstract
In 2003, Teledyne RD Instruments introduced the StreamPro acoustic Doppler current profiler which does not include an internal compass. During stationary moving-bed tests the StreamPro often tends to swim or kite from the end of the tether (the instrument rotates then moves laterally in the direction of the rotation). Because the StreamPro does not have an internal compass, it cannot account for the rotation. This rotation and lateral movement of the StreamPro on the end of the tether generates a false upstream velocity, which cannot be easily distinguished from a moving-bed bias velocity. A field test was completed to demonstrate that this rotation and lateral movement causes a false upstream boat velocity. The vector dot product of the boat velocity and the unit vector of the depth-averaged water velocity is shown to be an effective method to account for the effect of the rotation and lateral movement.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Cause and solution for false upstream boat velocities measured with a StreamPro acoustic doppler current profiler |
| Year Published | 2007 |
| Language | English |
| Publisher | American Society of Civil Engineers |
| Contributing office(s) | Office of Surface Water |
| Description | 6 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Larger Work Title | Proceedings of Hydraulic Measurements & Experimental Methods 2007 Conference |
| Conference Title | Hydraulic Measurements & Experimental Methods 2007 Conference |
| Conference Location | Lake Placid, New York |
| Conference Date | September 10-12 2007 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |