@article{fdi:010062446,
  title = {{F}orcing mechanisms of intraseasonal {SST} variability off central {P}eru in 2000-2008},
  author = {{I}llig, {S}erena and {D}ewitte, {B}oris and {G}oubanova, {K}aterina and {C}ambon, {G}ildas and {B}oucharel, {J}. and {M}onetti, {F}. and {R}omero, {C}. and {P}urca, {S}. and {F}lores, {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {S}ea {S}urface {T}emperature ({SST}) intraseasonal variability (40-90 days) along the coast of {P}eru is commonly attributed to the efficient oceanic connection with the equatorial variability. {H}ere we investigate the respective roles of local and remote equatorial forcing on the intraseasonal {SST} variability off central {P}eru (8 degrees {S}-16 degrees {S}) during the 2000-2008 period, based on the experimentation with a regional ocean model. {W}e conduct model experiments with different open lateral boundary conditions and/or surface atmospheric forcing (i.e., climatological or not). {D}espite evidence of clear propagations of coastal trapped waves of equatorial origin and the comparable marked seasonal cycle in intraseasonal {K}elvin wave activity and coastal {SST} variability (i.e., peak in {A}ustral summer), this remote equatorial forcing only accounts for similar to 20% of the intraseasonal {SST} regime, which instead is mainly forced by the local winds and heat fluxes. {A} heat budget analysis further reveals that during the {A}ustral summer, despite the weak along-shore upwelling (downwelling) favorable wind stress anomalies, significant cool (warm) {SST} anomalies along the coast are to a large extent driven by {E}kman-induced advection. {T}his is shown to be due to the shallow mixed layer that increases the efficiency by which wind stress anomalies relates to {SST} through advection. {D}iabatic processes also contribute to the {SST} intraseasonal regime, which tends to shorten the lag between peak {SST} and wind stress anomalies compared to what is predicted from an advective mixed-layer model.},
  keywords = {{PEROU} ; {PACIFIQUE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch.{O}ceans},
  volume = {119},
  numero = {6},
  pages = {3548--3573},
  ISSN = {2169-9275},
  year = {2014},
  DOI = {10.1002/2013jc009779},
  URL = {https://www.documentation.ird.fr/hor/fdi:010062446},
}