@article{fdi:010066028,
  title = {{B}oundaries of the {P}eruvian oxygen minimum zone shaped by coherent mesoscale dynamics},
  author = {{B}ettencourt, {J}. {H}. and {L}opez, {C}. and {H}ernandez-{G}arcia, {E}. and {M}ontes, {I}. and {S}udre, {J}. and {D}ewitte, {B}oris and {P}aulmier, {A}ur{\'e}lien and {G}arcon, {V}.},
  editor = {},
  language = {{ENG}},
  abstract = {{D}issolved oxygen in sea water affects marine habitats and biogeochemical cycles(1-3). {O}ceanic zones with oxygen deficits represent 7% of the volume and 8% of the area of the oceans(4), and are thought to be expanding(4,5). {O}ne of the most pronounced lies in the region off {P}eru, where mesoscale activity in the form of fronts and eddies is strong. {H}ere, we study the dynamics of the {P}eruvian oxygen minimum zone in a {L}agrangian framework, using a coupled physical-biogeochemical numerical model and finite-size {L}yapunov exponent fields, to evaluate the role of mesoscale activity. {W}e find that, at depths between 380 and 600 m, mesoscale structures have two distinct roles. {F}irst, their mean positions and paths delimit and maintain the oxygen minimum zone boundaries. {S}econd, their high-frequency fluctuations inject oxygen across the oxygen minimum zone boundaries and eddy fluxes are one order of magnitude higher than mean oxygen fluxes. {W}e conclude that these eddy fluxes contribute to the ventilation of the {P}eruvian oxygen minimum zone.},
  keywords = {{PEROU} ; {PACIFIQUE}},
  booktitle = {},
  journal = {{N}ature {G}eoscience},
  volume = {8},
  numero = {12},
  pages = {937--{U}67},
  ISSN = {1752-0894},
  year = {2015},
  DOI = {10.1038/ngeo2570},
  URL = {https://www.documentation.ird.fr/hor/fdi:010066028},
}