Motion-correlated flow distortion and wave-induced biases in air–sea flux measurements from ships

Prytherch, J.; Yelland, M. J.; Brooks, I. M.; Tupman, D. J.; Pascal, R. W.; Moat, B. I.; Norris, S. J.

doi:10.5194/acp-15-10619-2015

Articles | Volume 15, issue 18

https://doi.org/10.5194/acp-15-10619-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-15-10619-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 18

Research article

|

25 Sep 2015

Research article |

| 25 Sep 2015

Motion-correlated flow distortion and wave-induced biases in air–sea flux measurements from ships

J. Prytherch, M. J. Yelland, I. M. Brooks, D. J. Tupman, R. W. Pascal, B. I. Moat, and S. J. Norris

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Month	HTML	PDF	XML	Total
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Jul 2015	26	21	5	52
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Latest update: 18 Nov 2025

Short summary

Signals at scales associated with wave and platform motion are often apparent in ship-based turbulent flux measurements, but it has been uncertain whether this is due to measurement error or to wind-wave interactions. We show that the signal has a dependence on horizontal ship velocity and that removing the signal reduces the dependence of the momentum flux on the orientation of the ship to the wind. We conclude that the signal is a bias due to time-varying motion-dependent flow distortion.