• Hill, R. H., and C. L. Trump, 1982: An interim Doppler shear profiler: Experimental results. Naval Research Laboratory Memo. Rep. 4920. Naval Research Laboratory, Washington, DC, 112 pp. [NTIS ADB067830.].

  • Marmorino, G. O., D. R. Thompson, C. L. Trump, H. C. Graber, and R. E. Carande, 1994: Water-mass interactions near Cape Hatteras studied with coordinated ship and airborne data measurements. Eos—1994 Ocean Sci. Meeting Suppl.,75, 179.

  • Trump, C. L., 1989: Three practical hints on using vessel mounted ADCPs. Mar. Technol. Soc. J.,23 (3), 28–35.

  • ——, and G. O. Marmorino, 1997: Use of single-ping bottom-track ADCP data to characterize small-scale bathymetry. J. Atmos. Oceanic Technol., in press.

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Calculation of ADCP Alignment Offsets Using Single-Beam Velocity and Depth Data

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  • 1 Naval Research Laboratory, Washington, D.C.
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Abstract

To extract the maximum quality results from shipborne acoustic Doppler current profiler data, it is necessary to know how the beams are aligned with respect to the earth. Individual beam velocities, relative to the water or the bottom, have been used to estimate the rotation of the transducer relative to the ship and the pitch offset of the transducer. Individual beam bottom-track ranges can be used to make an independent estimate of pitch offset and an estimate of the roll offset.

Corresponding author address: Dr. Clifford L. Trump, Code 7250, Naval Research Laboratory, Washington, DC 20375.

Email: trump@nrlfs1.nrl.navy.mil

Abstract

To extract the maximum quality results from shipborne acoustic Doppler current profiler data, it is necessary to know how the beams are aligned with respect to the earth. Individual beam velocities, relative to the water or the bottom, have been used to estimate the rotation of the transducer relative to the ship and the pitch offset of the transducer. Individual beam bottom-track ranges can be used to make an independent estimate of pitch offset and an estimate of the roll offset.

Corresponding author address: Dr. Clifford L. Trump, Code 7250, Naval Research Laboratory, Washington, DC 20375.

Email: trump@nrlfs1.nrl.navy.mil

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