@article{fdi:010070998,
  title = {{I}mpacts of {E}l {N}ino events on the {P}eruvian upwelling system productivity},
  author = {{E}spinoza-{M}orriberon, {D}. and {E}chevin, {V}incent and {C}olas, {F}ran{\c{c}}ois and {T}am, {J}. and {L}edesma, {J}. and {V}asquez, {L}. and {G}raco, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{E}very 2-7 years, {E}l {N}ino events trigger a strong decrease in phytoplankton productivity off {P}eru, which profoundly alters the environmental landscape and trophic chain of the marine ecosystem. {H}ere we use a regional coupled physical-biogeochemical model to study the dynamical processes involved in the productivity changes during {E}l {N}ino, with a focus on the strongest events of the 1958-2008 period. {M}odel evaluation using satellite and in situ observations shows that the model reproduces the surface and subsurface interannual physical and biogeochemical variability. {D}uring {E}l {N}ino, the thermocline and nutricline deepen significantly during the passage of coastal-trapped waves. {W}hile the upwelling-favorable wind increases, the coastal upwelling is compensated by a shoreward geostrophic near-surface current. {T}he depth of upwelling source waters remains unchanged during {E}l {N}ino but their nutrient content decreases dramatically, which, along with a mixed layer depth increase, impacts the phytoplankton growth. {O}ffshore of the coastal zone, enhanced eddy-induced subduction during {E}l {N}ino plays a potentially important role in nutrient loss.},
  keywords = {{PEROU} ; {PACIFIQUE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {O}ceans},
  volume = {122},
  numero = {7},
  pages = {5423--5444},
  ISSN = {2169-9275},
  year = {2017},
  DOI = {10.1002/2016jc012439},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070998},
}