@article{fdi:010079960,
  title = {{ENSO} diversity driving low-frequency change in mesoscale activity off {P}eru and {C}hile},
  author = {{C}onejero, {C}. and {D}ewitte, {B}oris and {G}arcon, {V}. and {S}udre, {J}. and {M}ontes, {I}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}ransient mesoscale oceanic eddies in {E}astern {B}oundary {U}pwelling {S}ystems are thought to strongly affect key regional scale processes such as ocean heat transport, coastal upwelling and productivity. {U}nderstanding how these can be modulated at low-frequency is thus critical to infer their role in the climate system. {H}ere we use 26 years of satellite altimeter data and regional oceanic modeling to investigate the modulation of eddy kinetic energy ({EKE}) off {P}eru and {C}hile by {ENSO}, the main mode of natural variability in the tropical {P}acific. {W}e show that {EKE} tends to increase during strong {E}astern {P}acific ({EP}) {E}l {N}ino events along the {P}eruvian coast up to northern {C}hile and decreases off central {C}hile, while it is hardly changed during {C}entral {P}acific {E}l {N}ino and {L}a {N}ina events. {H}owever the magnitude of the {EKE} changes during strong {EP} {E}l {N}ino events is not proportional to their strength, with in particular the 1972/1973 {E}l {N}ino event standing out as an extreme event in terms of {EKE} increase off {P}eru reaching an amplitude three times as large as that during the 1997/1998 {E}l {N}ino event, and the 2015/2016 {E}l {N}ino having instead a weak impact on {EKE}. {T}his produces decadal changes in {EKE}, with a similar pattern than that of strong {EP} {E}l {N}ino events, resulting in a significant negative (positive) long-term trend off {P}eru (central {C}hile).},
  keywords = {{PACIFIQUE} ; {CHILI} ; {PEROU}},
  booktitle = {},
  journal = {{S}cientific {R}eports - {N}ature},
  volume = {10},
  numero = {1},
  pages = {17902 [73 p.]},
  ISSN = {2045-2322},
  year = {2020},
  DOI = {10.1038/s41598-020-74762-x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079960},
}