@article{fdi:010053517,
  title = {{M}odes of covariability between sea surface temperature and wind stress intraseasonal anomalies along the coast of {P}eru from satellite observations (2000-2008)},
  author = {{D}ewitte, {B}oris and {I}llig, {S}erena and {R}enault, {L}. and {G}oubanova, {K}. and {T}akahashi, {K}. and {G}ushchina, {D}. and {M}osquera, {K}. and {P}urca, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {T}ropical {R}ainfall {M}easuring {M}ission {M}icrowave {I}mager sea surface temperature ({SST}) and {Q}uik{SCAT} wind stress satellite data are used to investigate the intraseasonal upwelling variability along the coat of {P}eru over the period 2000-2008. {T}wo regions of peak variance correspond to the central {P}eru region ({P}isco region, 15 degrees {S}) and the northern {P}eru region ({P}iura region, 5 degrees {S}). {A} covariance analysis reveals a significant coherency between winds and {SST} anomalies off {P}isco, consistent with {E}kman pumping and transport dynamics. {T}he upwelling cell consists in a meridionally extended fringe of colder (warmer) water extending as far as 250 km from the coast at 15 degrees {S}. {I}n the {P}iura region, the intraseasonal covariability pattern is represented by two modes, one relevant to the direct {E}kman dynamics and the other one associated with the remote forcing of intraseasonal oceanic {K}elvin wave. {T}wo regimes of variability are evidenced. {A} low-period regime (10-25 days) is the signature of {E}kman transport/pumping dynamics and is remotely forced by the migratory atmospheric disturbances across the southeastern {P}acific anticyclone. {A} high-period regime (35-60 day band) is associated with the combined forcing of oceanic equatorial {K}elvin waves and migratory atmospheric disturbances in the midlatitudes. {I}n particular, the modes of covariability exhibit a prominent similar to 50 day period energy peak. {I}t is shown that this period arises from the impact of the first two baroclinic modes {K}elvin wave, with the second baroclinic mode {K}elvin wave being more influential on the {P}iura region.},
  keywords = {},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch-{O}ceans},
  volume = {116},
  numero = {},
  pages = {{C}04028},
  ISSN = {0148-0227},
  year = {2011},
  DOI = {10.1029/2010jc006495},
  URL = {https://www.documentation.ird.fr/hor/fdi:010053517},
}