@article{fdi:010056676, title = {{T}he impact of global warming on the tropical {P}acific ocean and {E}l {N}ino}, author = {{C}ollins, {M}. and {A}n, {S}. {I}. and {C}ai, {W}. {J}. and {G}anachaud, {A}lexandre and {G}uilyardi, {E}. and {J}in, {F}. {F}. and {J}ochum, {M}. and {L}engaigne, {M}atthieu and {P}ower, {S}. and {T}immermann, {A}. and {V}ecchi, {G}. and {W}ittenberg, {A}.}, editor = {}, language = {{ENG}}, abstract = {{T}he {E}l {N}ino-{S}outhern {O}scillation ({ENSO}) is a naturally occurring fluctuation that originates in the tropical {P}acific region and affects ecosystems, agriculture, freshwater supplies, hurricanes and other severe weather events worldwide. {U}nder the influence of global warming, the mean climate of the {P}acific region will probably undergo significant changes. {T}he tropical easterly trade winds are expected to weaken; surface ocean temperatures are expected to warm fastest near the equator and more slowly farther away; the equatorial thermocline that marks the transition between the wind-mixed upper ocean and deeper layers is expected to shoal; and the temperature gradients across the thermocline are expected to become steeper. {Y}ear-to-year {ENSO} variability is controlled by a delicate balance of amplifying and damping feedbacks, and one or more of the physical processes that are responsible for determining the characteristics of {ENSO} will probably be modified by climate change. {T}herefore, despite considerable progress in our understanding of the impact of climate change on many of the processes that contribute to {E}l {N}ino variability, it is not yet possible to say whether {ENSO} activity will be enhanced or damped, or if the frequency of events will change.}, keywords = {}, booktitle = {}, journal = {{N}ature {G}eoscience}, volume = {3}, numero = {6}, pages = {391--397}, ISSN = {1752-0894}, year = {2010}, DOI = {10.1038/ngeo868}, URL = {https://www.documentation.ird.fr/hor/fdi:010056676}, }