FN Archimer Export Format PT J TI Oceanic vortex mergers are not isolated but influenced by the beta-effect and surrounding eddies BT AF DE MAREZ, Charly CARTON, Xavier L'HEGARET, Pierre MEUNIER, Thomas STEGNER, Alexandre LE VU, Briac MORVAN, Mathieu AS 1:1;2:1;3:1;4:2;5:3;6:3;7:1; FF 1:;2:;3:;4:;5:;6:;7:; C1 Univ Brest, Lab Oceanog Phys & Spatiale LOPS, Plouzane, France. CICESE, Ensenada, Baja California, Mexico. Ecole Polytech, CNRS, Lab Meteorol Dynam, Palaiseau, France. C2 UBO, FRANCE CICESE, MEXICO ECOLE POLYTECH, FRANCE UM LOPS IN WOS Cotutelle UMR DOAJ copubli-france copubli-int-hors-europe copubli-sud IF 4.379 TC 12 UR https://archimer.ifremer.fr/doc/00657/76873/78117.pdf https://archimer.ifremer.fr/doc/00657/76873/78118.pdf LA English DT Article AB Oceanic vortices are ubiquitous in the ocean. They dominate the sub-inertial energy spectrum, and their dynamics is key for the evolution of the water column properties. The merger of two like-signed coherent vortices, which ultimately results in the formation of a larger vortex, provides an efficient mechanism for the lateral mixing of water masses in the ocean. Understanding the conditions of such interaction in the ocean is thus essential. Here, we use a merger detection algorithm to draw a global picture of this process in the ocean. We show that vortex mergers are not isolated, contrary to the hypothesis made in most earlier studies. Paradoxically, the merging distance is well reproduced by isolated vortex merger numerical simulations, but it is imperative to consider both the beta -effect and the presence of neighbouring eddies to fully understand the physics of oceanic vortex merger. PY 2020 PD FEB SO Scientific Reports SN 2045-2322 PU Nature Publishing Group VL 10 IS 1 UT 000560377500005 DI 10.1038/s41598-020-59800-y ID 76873 ER EF