@article{fdi:010058175,
  title = {{S}easonality of tropical instability waves and its feedback to the seasonal cycle in the tropical {E}astern {P}acific},
  author = {{I}m, {S}. {H}. and {A}n, {S}. {I}. and {L}engaigne, {M}atthieu and {N}oh, {Y}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his study investigated the seasonality of tropical instability waves ({TIW}s) and its feedback to the seasonal cycle in the tropical eastern {P}acific using a high-resolution ocean model covering 1958-2007. {T}he climatological mean of the {TIW}s featured intraseasonal fluctuations, implying that {TIW}s are not occurring randomly, but their amplitude is partly in phase from one year to another. {T}his seasonality of {TIW} activity is attributed to their dependency on the seasonal mean variation of current and temperature. {E}nergy conversion analysis confirmed that the strong variability of {TIW}s near 4 degrees {N} was due to the barotropic energy conversion associated with the large meridional shear of {NECC} and {SEC} and that at another pole near 2 degrees {N} was due to the baroclinic energy conversion associated with the temperature front in the mixed layer. {T}he former and latter poles are somehow largely responsible for amplifying the dynamic and thermal eddies of {TIW}s, respectively. {T}he intensified {TIW}s during a boreal fall increase the tropical eastern {P}acific {SST} by associating the warm thermal advection by anomalous currents, with a rate of up to 1 degrees {C}/month in {S}eptember. {T}herefore, this leads to interactive feedback between seasonal and intraseasonal variations, that is, {TIW}s in the tropical eastern {P}acific.},
  keywords = {},
  booktitle = {},
  journal = {{S}cientific {W}orld {J}ournal},
  numero = {},
  pages = {612048},
  ISSN = {1537-744{X}},
  year = {2012},
  DOI = {10.1100/2012/612048},
  URL = {https://www.documentation.ird.fr/hor/fdi:010058175},
}