Turbulent Airflow and Wave-Induced Stress Over the Ocean

Turbulent Airflow and Wave-Induced Stress Over the Ocean Boundary-Layer Meteorol https://doi.org/10.1007/s10546-018-0359-1 RESEARCH ARTICLE Turbulent Airflow and Wave-Induced Stress Over the Ocean 1 2 Hitoshi Tamura · William M. Drennan · 3 2 Clarence O. Collins III · Hans C. Graber Received: 4 November 2017 / Accepted: 8 May 2018 © Springer Science+Business Media B.V., part of Springer Nature 2018 Abstract We examine the structure of turbulent airflow over ocean waves. Based on an analysis of wind and wave observations derived from a moored and floating Air–Sea Inter- action Spar buoy during the Shoaling Waves Experiment field campaign, we show that the cospectra of momentum flux for wind–sea conditions follow established universal scaling laws. Under swell-dominant conditions, the wave boundary layer is extended and the uni- versal cospectral scaling breaks down, as demonstrated previously. On the other hand, the use of peak wave frequency to reproduce the universal cospectra successfully explains the structure of the turbulent flow field. We quantify the wave-coherent component of the airflow and this clarifies how ocean waves affect momentum transfer through the wave boundary layer. In fact, the estimated wave-induced stresses for swell-dominant conditions explain the anomalous cospectral shapes observed near the peak wave frequency. Keywords Wave boundary layer · Wave-induced stress · http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Boundary-Layer Meteorology Springer Journals

Turbulent Airflow and Wave-Induced Stress Over the Ocean

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Publisher
Springer Netherlands
Copyright
Copyright © 2018 by Springer Science+Business Media B.V., part of Springer Nature
Subject
Earth Sciences; Atmospheric Sciences; Meteorology; Atmospheric Protection/Air Quality Control/Air Pollution
ISSN
0006-8314
eISSN
1573-1472
D.O.I.
10.1007/s10546-018-0359-1
Publisher site
See Article on Publisher Site

Abstract

Boundary-Layer Meteorol https://doi.org/10.1007/s10546-018-0359-1 RESEARCH ARTICLE Turbulent Airflow and Wave-Induced Stress Over the Ocean 1 2 Hitoshi Tamura · William M. Drennan · 3 2 Clarence O. Collins III · Hans C. Graber Received: 4 November 2017 / Accepted: 8 May 2018 © Springer Science+Business Media B.V., part of Springer Nature 2018 Abstract We examine the structure of turbulent airflow over ocean waves. Based on an analysis of wind and wave observations derived from a moored and floating Air–Sea Inter- action Spar buoy during the Shoaling Waves Experiment field campaign, we show that the cospectra of momentum flux for wind–sea conditions follow established universal scaling laws. Under swell-dominant conditions, the wave boundary layer is extended and the uni- versal cospectral scaling breaks down, as demonstrated previously. On the other hand, the use of peak wave frequency to reproduce the universal cospectra successfully explains the structure of the turbulent flow field. We quantify the wave-coherent component of the airflow and this clarifies how ocean waves affect momentum transfer through the wave boundary layer. In fact, the estimated wave-induced stresses for swell-dominant conditions explain the anomalous cospectral shapes observed near the peak wave frequency. Keywords Wave boundary layer · Wave-induced stress ·

Journal

Boundary-Layer MeteorologySpringer Journals

Published: May 28, 2018

References

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