Actualités
Interaction of internal solitary waves and eddies observed for the first time with Swot
For the first time, Swot enabled to observe Internal solitary waves signature in sea surface height. This allowed researchers to study the interactions of internal solitary waves with eddies on the Amazon Shelf, leading to a better understanding of their complex interactions.
![ADT_swot with internal solitary waves detection for 22 August 2024 with an Anticyclonic eddy interaction ("AE", eddy marked by green contour) (from [Goret et al. , 2026])](/fileadmin/_processed_/c/5/csm_Fig_7_from_Goret_al_2026-copy_c26047f385.png "ADT_swot with internal solitary waves detection for 22 August 2024 with an Anticyclonic eddy interaction (\"AE\", eddy marked by green contour) (from [Goret et al. , 2026])")
ADT_swot with internal solitary waves detection for 22 August 2024 with an Anticyclonic eddy interaction ("AE", eddy marked by green contour) (from [Goret et al. , 2026])
Internal solitary waves impact physical and biological processes in the upper ocean, as well as human activities with potential impacts on navigation and coastal infrastructures. A study using both L4 data including Swot measurements, to detect the eddies and to remove the "known" part of the measurements, and Swot L3 2-km data, to observe the higher-resolution signals of the internal waves has been published.
See the full story on Swot ADaC web site: Publication: Nonlinear responses from the interaction of internal solitary waves and eddies observed for the first time with SWOT satellite
Reference
Goret, C., Koch-Larrouy, A., Kouogang, F., de Macedo, C.R., M’Hamdi, A., Magalhães, J.M., da Silva, J.C.B., Tchilibou, M., Artana, C., Dadou, I. and Delepoulle, A., 2026. Internal solitary waves refraction and diffraction from interaction with eddies off the Amazon Shelf from SWOT. Ocean Science, 22(1), pp.679-698. https://doi.org/10.5194/os-22-679-2026
Archives 
