@article{fdi:010049588, title = {{T}ropical response to the {A}tlantic {E}quatorial mode : {AGCM} multimodel approach}, author = {{L}osada, {T}. and {R}odriguez-{F}onseca, {B}. and {P}olo, {I}. and {J}anicot, {S}erge and {G}ervois, {S}. and {C}hauvin, {F}. and {R}uti, {P}.}, editor = {}, language = {{ENG}}, abstract = {{O}n the frame of the {AMMA}-{EU} project, sensitivity experiments for an {A}tlantic {E}quatorial mode ({AEM}) which origin, development and damping resembles the observed one during the last decades of the 20th century, has been analysed in order to investigate the influence on the anomalous summer {W}est {A}frican rainfall. {R}ecent studies raise the matter of the {AEM} influence on the next {P}acific {ENSO} episodes and also on the {I}ndian {M}onsoon. {T}his paper evaluates the response of four different atmospheric global circulation models, using the above-mentioned {AEM} sensitivity experiments, to study the tropical forcing associated with the {A}tlantic {N}io mode. {T}he results show a remote signal in both the {P}acific and {I}ndian basins. {F}or a warm phase of the {AEM} the associated southward location of the {ITCZ}, with rising motions over the {E}quatorial {A}tlantic, leads to a global subsidence over the rest of the tropics, weakening the {A}sian {M}onsoon and favouring the {L}a {N}ia conditions in the central {P}acific. {A}lthough ocean-atmosphere coupled experiments are required to test the latter hypothesis, the present studies shows how the {AEM} is able to influence the rest of the tropics, a result with important implications on {ENSO} seasonal predictability.}, keywords = {{ATLANTIQUE} ; {ZONE} {EQUATORIALE}}, booktitle = {}, journal = {{C}limate {D}ynamics}, volume = {35}, numero = {1}, pages = {45--52}, ISSN = {0930-7575}, year = {2010}, DOI = {10.1007/s00382-009-0624-6}, URL = {https://www.documentation.ird.fr/hor/fdi:010049588}, }