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:https://doi.org/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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Final revised paper (published on 25 Sep 2015)
Preprint (discussion started on 10 Jun 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC C4128: 'Review', Anonymous Referee #1, 29 Jun 2015
RC C5157: 'Review on "Motion-correlated flow distortion and wave-induced biases in air-sea flux measurements from ships"', Brian Ward, 23 Jul 2015
AC C6546: 'Final author comments', John Prytherch, 03 Sep 2015

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by John Prytherch on behalf of the Authors (03 Sep 2015) Author's response Manuscript

ED: Publish subject to technical corrections (08 Sep 2015) by Rob MacKenzie

AR by John Prytherch on behalf of the Authors (14 Sep 2015) Manuscript

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.