@article{fdi:010080139,
  title = {{S}ummer and winter {A}tlantic {N}ino : connections with {ENSO} and implications},
  author = {{H}ounsou-{G}bo, {A}. and {S}ervain, {J}acques and {V}asconcelos, {F}.{D}.{C}. and {M}artins, {E}.{S}.{P}.{R}. and {A}raújo, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he teleconnection between the {A}tlantic {N}iño and the {P}acific {E}l {N}iño {S}outhern {O}scillation ({ENSO}) is revisited using obser-vational and reanalysis data for the 1905-2014 period. {T}wo types of {A}tlantic {N}iño are significantly negatively correlated with {ENSO}, with {A}tlantic leading {ENSO} by 6-month to 1-year. {T}he first one is the already well-known connection between the boreal summer {A}tlantic {N}iño ({ATL}3: 3° {N}-3° {S}, 20° {W}-0°) and the subsequent winter {ENSO} ({N}iño3: 5° {N}-5° {S}, 150° {W}-90° {W}). {T}his relationship is strong in the first and last decades of the study period. {I}t is shown that a second {A}tlantic {N}iño in boreal fall/early winter ({O}ctober-{D}ecember, here in after called winter {A}tlantic {N}iño) is also significantly correlated with the following year {ENSO}. {T}his winter {A}tlantic {N}iño leads to an early development of {ENSO} from boreal summer onwards, with a marked multidecadal modulation of the lead time. {A} nearly 1-year leading connection between winter {A}tlantic {N}iño and the following {ENSO} is generally observed in the mid-twentieth century, mostly when the summer {A}tlantic {N}iño teleconnection with the subsequent winter {ENSO} is weak. {T}he same mechanism of the {A}tlantic-{P}acific {N}iño connection, which involves the {W}alker circulation, operates for the two types of {A}tlantic {N}iño. {O}ur analysis supports the leading influence of the summer and winter {A}tlantic equatorial modes on climate variability in {S}outh {A}merica. {T}hese results suggest the relevance of different types of {A}tlantic {N}iño for the 6-month to 1-year predictability of {ENSO} and its climatic impacts.},
  keywords = {{ATLANTIQUE} ; {PACIFIQUE} ; {INDE} ; {AMERIQUE} {DU} {SUD} ; {BRESIL}},
  booktitle = {},
  journal = {{C}limate {D}ynamics},
  volume = {55},
  numero = {11-12},
  pages = {2939--2956},
  ISSN = {0930-7575},
  year = {2020},
  DOI = {10.1007/s00382-020-05424-x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010080139},
}