@article{fdi:010063727, title = {{O}n the relationship between the {N}orth {P}acific climate variability and the central {P}acific {E}l {N}ino}, author = {{Y}eh, {S}. {W}. and {W}ang, {X}. and {W}ang, {C}. {Z}. and {D}ewitte, {B}oris}, editor = {}, language = {{ENG}}, abstract = {{T}his study examined connections between the {N}orth {P}acific climate variability and occurrence of the central {P}acific ({CP}) {E}l {N}ino for the period from 1950 to 2012. {A} composite analysis indicated that the relationship between the {N}orth {P}acific sea surface temperature ({SST}), along with its overlying atmospheric circulation, and the {CP} {E}l {N}ino during the developing and mature phases was changed when the occurrence frequency of the {CP} {E}l {N}ino significantly increased after 1990. {E}mpirical orthogonal function ({EOF}) and singular value decomposition ({SVD}) analyses of variability in the tropical {P}acific and its relationship to the {N}orth {P}acific show that the {N}orth {P}acific anomalous {SST} and the atmospheric variability are more closely associated with the occurrence of the {CP} {E}l {N}ino after 1990 than before 1990. {T}here were noticeable differences in terms of the atmospheric variability conditions over the {N}orth {P}acific, such as the {N}orth {P}acific {O}scillation ({NPO})-like atmospheric variability during the spring and its associated {SST} anomalies during the following winter before 1990 and after 1990. {I}n addition, combined {EOF} analysis also indicated that the {NPO}-like atmospheric circulation becomes more effective at playing a role in initiating {E}l {N}ino after 1990. {C}onsequently, such a change might have been associated with the frequent occurrence of the {CP} {E}l {N}ino after 1990.}, keywords = {{PACIFIQUE} {NORD} ; {PACIFIQUE} {CENTRE}}, booktitle = {}, journal = {{J}ournal of {C}limate}, volume = {28}, numero = {2}, pages = {663--677}, ISSN = {0894-8755}, year = {2015}, DOI = {10.1175/jcli-d-14-00137.1}, URL = {https://www.documentation.ird.fr/hor/fdi:010063727}, }