Historical developments of current, wave, and turbulence measurements including those by MAVS

Personal knowledge of the author stretches from the Geodyne 850 current meter, predecessor of the VACM in 1969 to his own development of MAVS and its recent innovations. Housings, recording media, velocity sensors, and compasses have changed most noticeably. Applications of current measurements are next most striking about the developments in our field over the last 40 years. Where and how current meters are deployed have migrated from ship lowered or fixed moorings to bottom tripods, profilers on a mooring, and even to shore-based HF Radar antennas. Present developments address power to operate autonomous instrumentation, data communication in real time, and novel adaptations of current measurement techniques to non-traditional current measurement problems like horizontal profiles, turbulent mixing, and wave monitoring. New applications will be presented at this workshop, with perhaps greater emphasis than new developments in sensing.

[1]  A. Williams Free-sinking temperature and salinity profiler for ocean microstructure studies , 1974 .

[3]  R McClure,et al.  Environmental assessment and monitoring of ocean energy sites — A rapid, proven, and economical approach , 2010, OCEANS 2010 MTS/IEEE SEATTLE.

[4]  R. Signell,et al.  A VMCM S4 current meter intercomparison on a surface mooring in shallow water , 1986, Proceedings of the 1986 IEEE Third Working Conference on Current Measurement.

[5]  E. Siegel,et al.  Measurements of ice parameters in the Beaufort Sea using the Nortek AWAC acoustic Doppler current profiler , 2010, OCEANS 2010 MTS/IEEE SEATTLE.

[6]  A. J. Williams,et al.  Development of a modular acoustic velocity sensor , 1996, OCEANS 96 MTS/IEEE Conference Proceedings. The Coastal Ocean - Prospects for the 21st Century.

[7]  G. M. Wenz Acoustic Ambient Noise in the Ocean: Spectra and Sources , 1962 .

[8]  A. T. Morrison MWAVES - software for calculating the directional spectra and statistical properties of the wave field from MAVS-3 triplet measurements , 2003, Proceedings of the IEEE/OES Seventh Working Conference on Current Measurement Technology, 2003..

[9]  J. Toole,et al.  Noise in Ice-Tethered Profiler and McLane Moored Profiler velocity measurements , 2011, 2011 IEEE/OES 10th Current, Waves and Turbulence Measurements (CWTM).

[10]  R. Lien,et al.  Observations of Turbulence Mixing and Vorticity in a Littoral Surface Boundary Layer , 2008 .

[11]  Von Arx,et al.  An electromagnetic method for measuring the velocities of ocean currents from a ship under way , 1950 .

[12]  S. Glenn,et al.  Bottom Stress Estimates and their Prediction on the Northern California Continental Shelf during CODE-1: The Importance of Wave-Current Interaction , 1985 .

[13]  Albert J. Williams,et al.  Measurement of Turbulence in the Oceanic Bottom Boundary layer with an Acoustic Current Meter Array , 1987 .

[14]  T. Gross,et al.  A description of the bottom boundary layer at the HEBBLE site: Low-frequency forcing, bottom stress and temperature structure , 1985 .

[15]  Albert J. Williams,et al.  Motion tracking in an acoustic point-measurement current meter , 2010, OCEANS'10 IEEE SYDNEY.

[16]  A.J. Williams,et al.  Vertical cosine response of a faired ring acoustic current meter , 2005, Proceedings of the IEEE/OES Eighth Working Conference on Current Measurement Technology, 2005..

[17]  A.J. Williams Expendable benthic lander (XBL) , 2008, 2008 IEEE/OES US/EU-Baltic International Symposium.