@article{fdi:010077291,
  title = {{G}eneration of submesoscale frontal eddies in the {A}gulhas {C}urrent},
  author = {{T}edesco, {P}. and {G}ula, {J}. and {M}enesguen, {C}. and {P}enven, {P}ierrick and {K}rug, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his study addresses the dynamics of the {A}gulhas inshore front in the submesoscale range upstream of 26 degrees {E}. {S}ubmesoscale frontal eddies are observed in the vicinity of {P}ort {E}lizabeth (26 degrees {E}) from satellite images and in observations collected from underwater gliders. {U}sing a submesoscale-resolving numerical model (dx similar to 0.75 km), we are able to simulate similar submesoscale eddies. {B}arotropic instability is confirmed as the generation mechanism by a one-dimensional linear stability analysis and an eddy kinetic energy budget. {K}inetic energy is transferred from the mean flow to the eddies through the mean horizontal shear, which is a signature of barotropic instability. {W}hen the {A}gulhas {C}urrent is in a nonmeandering state, submesoscale eddy generation is a recurrent process which locally drives the front's variability. {A}long the front, the spatial variability of barotropic instability is shaped by the background strain. {A} large strain aligned with the frontal axis intensifies the frontal shear upstream of 28 degrees {E} while a weakening of the strain allows for barotropic instability to be triggered downstream. {A}lthough an intermittent process, the barotropic instability shows a dominant period of variability comparable with the variability of the {A}gulhas {C}urrent and {U}ndercurrent.},
  keywords = {{S}ubmesoscale ; {N}umerical {M}odelling ; {B}arotropic {I}nstability ; {A}gulhas {C}urrent ; {F}rontal {E}ddies ; {OCEAN} {INDIEN} ; {AGULHAS} {COURANT}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {O}ceans},
  volume = {124},
  numero = {11},
  pages = {7606--7625},
  ISSN = {2169-9275},
  year = {2019},
  DOI = {10.1029/2019jc015229},
  URL = {https://www.documentation.ird.fr/hor/fdi:010077291},
}