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1 results

  • 5 - Sampling Mixing and Its Environment

  • Michael C. Gregg, University of Washington
  • Book:
    Ocean Mixing
    Published online:
    10 March 2021
    Print publication:
    04 February 2021, pp 156-196

  • Summary

    This chapter explores how mixing is measured, focusing on what can be measured and how accurately. It begins with probes measuring dissipation scales, i.e. thermistors and airfoils, but also includes other devices not used routinely, such as pitot tubes. Finescale sensors are also examined, with an emphasis on absolute accuracy and salinity spiking. Then the vehicles carrying the probes are described, i.e. profilers, tows, AUVs, and submersibles. Moorings and fixed platforms are also briefly examined. Finally, remote sensing, principally using backscatter from high-frequency acoustics, is reviewed, along with tracer releases for measuring net diffusivity.