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ADCP Acoustic Doppler Current Profiler

ADCP Acoustic Doppler Current Profiler. Morven Muilwijk 2014 University of Bergen, Bjerknes Centre for Climate R esearch . What is an ADCP? . Acoustic Doppler Current Profiler . The Doppler Shift. The Doppler Shift. The Doppler Shift. Speed of sound = frequency × wavelength.

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ADCP Acoustic Doppler Current Profiler

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  1. ADCP Acoustic Doppler Current Profiler Morven Muilwijk 2014 Universityof Bergen, Bjerknes Centre for ClimateResearch

  2. What is an ADCP? • Acoustic Doppler Current Profiler Morven Muilwijk 2014

  3. The Doppler Shift Morven Muilwijk 2014

  4. The Doppler Shift Morven Muilwijk 2014

  5. The Doppler Shift Speed of sound = frequency × wavelength Morven Muilwijk 2014

  6. The Doppler Shift Morven Muilwijk 2014

  7. Current profiling and 3D velocitymeasurements 4 Measurements at once: 1. Speed and direction 2. Bottomtracking 3. Heightor range 4. Distribution of material (intensity) Morven Muilwijk 2014

  8. Different types, different purposes Morven Muilwijk 2014

  9. Different types, different purposes Morven Muilwijk 2014

  10. Applications ofthe ADCP • Oceanography • Vessel Traffic Safety in the Port & Harbor • Tidal currents observations • EfficientSeismic Survey Operations Morven Muilwijk 2014

  11. Applications ofthe ADCP • Oil industry • ADCPs for renewable energy projects Morven Muilwijk 2014

  12. New York powerplant Morven Muilwijk 2014

  13. Different types ofplatforms Morven Muilwijk 2014

  14. Examplesof studies • Measuringtidalcurrents in a sound Morven Muilwijk 2014

  15. Examplesof studies • Measuringtidalcurrents in a sound Morven Muilwijk 2014

  16. Advantages • Easy to use and to make profiles • No moving parts • Small scales • Absolute speed of water • Measurescolumns up to 1000m Morven Muilwijk 2014

  17. Disadvantages • Barnacles and algea • Clear waters • Compromisebetweendistance or precision • Bubbles in turbulent water • Battery powerwithfrequent pings Morven Muilwijk 2014

  18. Good to knowwhenworkingwithADCP’s • Backscatter • Ping • Main Lobe • Blank zone • Ambiguity Morven Muilwijk 2014

  19. ADCP Acoustic Doppler Current Profiler Morven Muilwijk 2014 Universityof Bergen, Bjerknes Centre for ClimateResearch

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