The impact of entrained air on ocean waves

Type Article
Date 2021-06
Language English
Author(s) Restrepo Juan M.ORCID1, Ayet AlexORCID2, 3, Cavaleri Luigi4
Affiliation(s) 1 : Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
2 : Ifremer, CNRS, IRD, Université Brest/Laboratoire d'Océanographie Physique et Spatiale (LOPS), IUEM, Brest, France
3 : LMD/IPSL, CNRS, École normale supérieure, PSL Research University, Paris, France
4 : Istituto di Scienze Marine, ISMAR, Arsenale – Tesa 104, Castello 2737/F, 30122 Venice, Italy
Source Nonlinear Processes In Geophysics (1023-5809) (Copernicus GmbH), 2021-06 , Vol. 28 , N. 2 , P. 285-293
DOI 10.5194/npg-28-285-2021

We make a physical–mathematical analysis of the implications that the presence of a large number of tiny bubbles may have, when present, on the thin upper layer of the sea. In our oceanographic example, the bubbles are due to intense rain. It was found that the bubbles increase momentum dissipation in the near surface and affect the surface tension force. For short waves, the implications of increased vorticity are momentum exchanges between wave and mean flow and modifications to the wave dispersion relation. For the direct effect we have analyzed, the implications are estimated to be non-significant when compared to other processes of the ocean. However, we hint at the possibility that our analysis may be useful in other areas of research or practical application.

Full Text
File Pages Size Access
Publisher's official version 9 190 KB Open access
Preprint 14 242 KB Open access
Top of the page