Publication Date:
2022-05-25
Description:
Author Posting. © American Geophysical Union, 2009. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 36 (2009): L10603, doi:10.1029/2009GL037620.
Description:
Representing upper ocean turbulence accurately in models remains a great challenge for improving weather and climate projections. Langmuir circulation (LC) is a turbulent process driven by wind and surface waves that plays a key role in transferring momentum, heat, and mass in the oceanic surface layer. We present a direct comparison between observations and large eddy simulations, based on the wave-averaged Navier-Stokes equation, of an LC growth event. The evolution of cross-wind velocity variance and spatial scales, as well as mixed layer deepening are only consistent with simulations if LC effects are included in the model. Our results offer a validation of the large eddy simulation approach to understanding LC dynamics, and demonstrate the importance of LC in ocean surface layer mixing.
Description:
This research was supported by the Office
of Naval Research through grants N00014-09-M-0112 (TK) and
N00014-06-1-0178 (AP, JT). TK also received support from a Woods
Hole Oceanographic Institution Cooperative Institute for Climate and
Ocean Research Postdoctoral Scholarship.
Keywords:
Langmuir circulation
Repository Name:
Woods Hole Open Access Server
Type:
Article
Format:
application/pdf
