@article{fdi:010049599,
  title = {{A} multi-model approach to the {A}tlantic {E}quatorial mode : impact on the {W}est {A}frican monsoon},
  author = {{L}osada, {T}. and {R}odriguez-{F}onseca, {B}. and {J}anicot, {S}erge and {G}ervois, {S}. and {C}hauvin, {F}. and {R}uti, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his paper is focused on the {W}est {A}frican anomalous precipitation response to an {A}tlantic {E}quatorial mode whose origin, development and damping resembles the observed one during the last decades of the {XX}th century. {I}n the framework of the {AMMA}-{EU} project, this paper analyses the atmospheric response to the {E}quatorial mode using a multimodel approach with an ensemble of integrations from 4 {AGCM}s under a time varying {E}quatorial {SST} mode. {T}he {G}uinean {G}ulf precipitation, which together with the {S}ahelian mode accounts for most of the summer {W}est {A}frican rainfall variability, is highly coupled to this {E}quatorial {A}tlantic {SST} mode or {A}tlantic {N}io. {I}n a previous study, done with the same models under 1958-1997 observed prescribed {SST}s, most of the models identify the {E}quatorial {A}tlantic {SST} mode as the one most related to the {G}uinean {G}ulf precipitation. {T}he models response to the positive phase of equatorial {A}tlantic mode (warm {SST}s) depicts a direct impact in the equatorial {A}tlantic, leading to a decrease of the local surface temperature gradient, weakening the {W}est {A}frican {M}onsoon flow and the surface convergence over the {S}ahel.},
  keywords = {{W}est {A}frican {M}onsoon ; {T}ropical {A}tlantic variability ; {T}ropical teleconnections},
  booktitle = {},
  journal = {{C}limate {D}ynamics},
  volume = {35},
  numero = {1},
  pages = {29--43},
  ISSN = {0930-7575},
  year = {2010},
  DOI = {10.1007/s00382-009-0625-5},
  URL = {https://www.documentation.ird.fr/hor/fdi:010049599},
}