@article{fdi:010080429,
  title = {{I}ntraseasonal hydrographic variations and nearshore carbonates system off {N}orthern {C}hile during the 2015 {E}l {N}ino event},
  author = {{A}guilera, {V}. {M}. and {V}argas, {C}. {A}. and {D}ewitte, {B}oris},
  editor = {},
  language = {{ENG}},
  abstract = {{L}ittle is known on the {E}l {N}ino-related impacts affecting the {CO}2 dynamic and fluxes in productive {E}astern {B}oundary {U}pwelling {S}ystems ({EBUS}). {T}hrough 35 oceanographic campaigns conducted between {J}anuary 2015 and {A}pril 2016 in the {H}umboldt {EBUS} (23 degrees {S}), intraseasonal (i.e., daily-to-bimonthly) hydrographic variations and nearshore changes in surface carbonates system were assessed during the 2015 {E}l {N}ino event. {C}ollected hydrographic and carbonates system data (sea surface temperature ({SST}), subsurface temperature, salinity, oxygen, chlorophyll a, p{H}, total alkalinity ({A}({T})) and p{CO}(2)), were analyzed and interpreted considering local (i.e., satellite winds and tide gauge sea level) and remote (i.e., equatorial {K}elvin waves) forcing. {P}ermanent alongshore wind conditions prompted a relatively deep mixed layer favoring elevated acidity (7.8-7.9 p{H}({T})) and {CO}2 saturated (>450 mu atm) conditions throughout most of the study period. {B}etween austral summer-fall and fall-winter transitions, intermittent warm events increased water temperature ({SST}) above the long-term climatological state (2000-2010), and gave rise to high acidity-warm conditions. {H}owever, despite warm water particularly high in salinity (>35) and {A}({T}) (>2,300 mu mol kg(-1)) associated with downwelling {K}elvin waves activity observed during the developing phase of the 2015 {E}l {N}ino event, phytoplankton production and {CO}2 uptake were favored because of the maintenance of mean upwelling conditions. {T}hese results are discussed in terms of data limitations, coastal processes adding variability to carbonates system variability, and requirements for a better understanding of hydrographic forcing and responses in the {H}umboldt {EBUS}.},
  keywords = {{E}astern {B}oundary {U}pwelling {S}ystems ; upwelling temporal variability ; {E}l {N}ino ; related variability ; hydrographic drivers ; ocean acidification ; {CHILI} ; {ANTOFAGASTA} ; {PACIFIQUE} {SUD} ; {HUMBOLDT} {COURANT}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {B}iogeosciences},
  volume = {125},
  numero = {11},
  pages = {e2020{JG}005704 [17 p.]},
  ISSN = {2169-8953},
  year = {2020},
  URL = {https://www.documentation.ird.fr/hor/fdi:010080429},
}