@article{fdi:010061984,
  title = {{T}he response of the {P}eruvian upwelling ecosystem to centennial-scale global change during the last two millennia},
  author = {{S}alvatteci, {R}. and {G}utierrez, {D}. and {F}ield, {D}. and {S}ifeddine, {A}bdelfettah and {O}rtlieb, {L}uc and {B}ouloubassi, {I}. and {B}oussafir, {M}. and {B}oucher, {H}ugues and {C}etin, {F}ethiye},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he tropical {P}acific ocean-atmosphere system influences global climate on interannual, decadal, as well as longer timescales. {G}iven the uncertainties in the response of the tropical {P}acific to increasing greenhouse gasses, it is important to assess the role of the tropical {P}acific climate variability in response to past global changes. {T}he {P}eruvian {U}p-welling {E}cosystem ({PUE}) represents an ideal area to reconstruct past changes in the eastern tropical {P}acific region because productivity and subsurface oxygenation are strongly linked to changes in the strength of the {W}alker circulation. {T}hroughout the last 2000 years, warmer (the {R}oman {W}arm {P}eriod - {RWP}; the {M}edieval {C}limate {A}nomaly - {MCA}; and the {C}urrent {W}arm {P}eriod - {CWP}), and colder (the {D}ark {A}ges {C}old {P}eriod - {DACP} - and {L}ittle {I}ce {A}ge - {LIA}) intervals were identified in the {N}orthern {H}emisphere ({NH}). {W}e use a multi-proxy approach including organic and inorganic proxies in finely laminated sediments retrieved off {P}isco (similar to 14 degrees {S}), {P}eru to reconstruct the {PUE} response to these climatic periods. {O}ur results indicate that the centennial-scale changes in precipitation are associated with changes in the {I}ntertropical {C}onvergence {Z}one ({ITCZ}) meridional displacements and expansion/contraction of the {S}outh {P}acific {S}ubtropical {H}igh ({SPSH}). {A}dditionally, during the {NH} cold periods, the {PUE} exhibited an {E}l {N}ino-like mean state, characterized by a weak oxygen minimum zone ({OMZ}), and low marine productivity. {I}n contrast, during the {RWP}, the last stage of the {MCA} and the {CWP}, the {PUE} exhibited a {L}a {N}ina-like mean state, characterized by an intense {OMZ} and high marine productivity. {C}omparing our results with other relevant paleoclimatic reconstructions revealed that changes in the {W}alker circulation strength and the {SPSH} expansion/contraction controlled marine productivity and {OMZ} intensity changes during the past two millennia.},
  keywords = {{PEROU}},
  booktitle = {},
  journal = {{C}limate of the {P}ast},
  volume = {10},
  numero = {2},
  pages = {715--731},
  ISSN = {1814-9324},
  year = {2014},
  DOI = {10.5194/cp-10-715-2014},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061984},
}