@article{fdi:010073170, title = {{T}he seasonal relationship between intraseasonal tropical variability and {ENSO} in {CMIP}5}, author = {{M}atveeva, {T}. and {G}ushchina, {D}. and {D}ewitte, {B}oris}, editor = {}, language = {{ENG}}, abstract = {{T}he {E}l {N}ino-{S}outhern {O}scillation ({ENSO}) is tightly linked to the intraseasonal tropical variability ({ITV}) that contributes to energise the deterministic ocean dynamics during the development of {E}l {N}ino. {H}ere, the relationship between {ITV} and {ENSO} is assessed based on models from the {C}oupled {M}odel {I}ntercomparison {P}roject ({CMIP}) phase 5 ({CMIP}5) taking into account the so-called diversity of {ENSO}, that is, the existence of two types of events (central {P}acific versus eastern {P}acific {E}l {N}ino). {A}s a first step, the models' skill in simulating {ENSO} diversity is assessed. {T}he characteristics of the {ITV} are then documented revealing a large dispersion within an ensemble of 16 models. {A} total of 11 models exhibit some skill in simulating the key aspects of the {ITV} for {ENSO}: the total variance along the {E}quator, the seasonal cycle and the characteristics of the propagation along the {E}quator of the {M}adden-{J}ulian oscillation ({MJO}) and the convectively coupled equatorial {R}ossby ({ER}) waves. {F}ive models that account realistically for both the two types of {E}l {N}ifio events and {ITV} characteristics are used for the further analysis of seasonal {ITV} / {ENSO} relationship. {T}he results indicate a large dispersion among the models and an overall limited skill in accounting for the observed seasonal {ITV} / {ENSO} relationship. {I}mplications of our results are discussed in light of recent studies on the forcing mechanism of {ENSO} diversity.}, keywords = {{PACIFIQUE} ; {ZONE} {TROPICALE}}, booktitle = {}, journal = {{G}eoscientific {M}odel {D}evelopment}, volume = {11}, numero = {6}, pages = {2373--2392}, ISSN = {1991-959{X}}, year = {2018}, DOI = {10.5194/gmd-11-2373-2018}, URL = {https://www.documentation.ird.fr/hor/fdi:010073170}, }