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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Latest update: 21 Jul 2024
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.
Final-revised paper