@article{fdi:010064101,
  title = {{P}eru-{C}hile upwelling dynamics under climate change},
  author = {{O}erder, {V}. and {C}olas, {F}ran{\c{c}}ois and {E}chevin, {V}incent and {C}odron, {F}. and {T}am, {J}. and {B}elmadani, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he consequences of global warming on the {P}eru-{C}hile {C}urrent {S}ystem ({PCCS}) ocean circulation are examined with a high-resolution, eddy-resolving regional oceanic model. {W}e performed a dynamical downscaling of climate scenarios from the {IPSL}-{CM}4 {C}oupled {G}eneral {C}irculation {M}odel ({CGCM}), corresponding to various levels of {CO}2 concentrations in the atmosphere. {H}igh-resolution atmospheric forcing for the regional ocean model are obtained from the {IPSL} atmospheric model run on a stretched grid with increased horizontal resolution in the {PCCS} region. {W}hen comparing future scenarios to preindustrial ({PI}) conditions, the circulation along the {P}eru and {C}hile coasts is strongly modified by changes in surface winds and increased stratification caused by the regional warming. {W}hile the coastal poleward undercurrent is intensified, the surface equatorial coastal jet shoals and the nearshore mesoscale activity are reinforced. {R}eduction in alongshore wind stress and nearshore wind stress curl drive a year-round reduction in upwelling intensity off {P}eru. {M}odifications in geostrophic circulation mitigate this upwelling decrease in late austral summer. {T}he depth of the upwelling source waters becomes shallower in warmer conditions, which may have a major impact on the system's biological productivity.},
  keywords = {{PEROU} ; {CHILI}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {O}ceans},
  volume = {120},
  numero = {2},
  pages = {1152--1172},
  ISSN = {2169-9275},
  year = {2015},
  DOI = {10.1002/2014jc010299},
  URL = {https://www.documentation.ird.fr/hor/fdi:010064101},
}