Comparison of 4- and 5-beam acoustic Doppler current profiler configurations for measurement of turbulent kinetic energy
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- EGU_5002-Togneri_2ndSubmission20-06-17_Preprint
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Acoustic Doppler current profilers (ADCPs) are commonly used to assess mean currents and turbulence at energetic sites. Since 2014, five-beam ADCP configurations have become more common, but conventional analysis of turbulence properties is still based on the four-beam Janus configuration. We use measurements from a single site to investigate improved estimates of turbulent kinetic energy (TKE) that are made possible by the addition of a fifth vertical beam. We conclude that four-beam estimates of TKE are suitable in most cases, and exhibit lower variance than five-beam estimates, but are more prone to contamination by wave activity.
Keywords
- ADCP, Turbulence, Tidal energy, Ocean current
| Original language | English |
|---|---|
| Pages (from-to) | 260-267 |
| Journal | Energy Procedia |
| Volume | 125 |
| DOIs | |
| Publication status | Published - 5 Sept 2017 |
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