@article{fdi:010017697,
  title = {{T}he coupled physical-new production system in the equatorial {P}acific during the 1992-1995 {E}l {N}ino},
  author = {{S}toens, {A}. and {M}enk{\`e}s, {C}hristophe and {R}adenac, {M}arie-{H}{\'e}l{\`e}ne and {D}andonneau, {Y}ves and {G}rima, {N}. and {E}ldin, {G}{\'e}rard and {M}{\'e}mery, {L}. and {N}avarette, {C}. and {A}ndr{\'e}, {J}ean-{M}ichel and {M}outin, {T}. and {R}aimbault, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e investigate the coupling between the physics and new production variability during the period {A}pril 1992 to {J}une 1995 in the equatorial {P}acific via two cruises and simulations. {T}he simulations are provided by a high-resolution {O}cean {G}eneral {C}irculation {M}odel forced with satellite-derived weekly winds and coupled to a nitrate transport model in which biology acts as a nitrate sink. {T}he cruises took place in {S}eptember-{O}ctober 1994 and sampled the western {P}acific warm pool and the upwelling region further east. {T}he coupled model reproduces these contrasted regimes. {I}n the oligotrophic warm pool the upper layer is fresh, and nitrate-depleted, and the new production is low. {I}n contrast, the upwelling waters are colder, and saltier with higher nitrate concentrations, and the new production is higher. {A}long the equator the {E}astern edge of the warm pool marked by a sharp salinity front, also coincides with a "new production front". {C}onsistent with the persistent eastward surface currents during the second half of 1994, these fronts undergo huge eastward displacement at the time of the cruises. {T}he warm/fresh poll and oligotrophic region has an average new production of 0.9 mmol {NO}3/m2/d, which is almost balanced by horizontal advection from the central {P}acific and by vertical advection of richer water from the nitrate reservoir below. {I}n contrast, the upwelling mesotrophic region shows average new production of 2.1 mmol {NO}3/m2/d and the strong vertical nitrate input by the equatorial upwelling is balanced by the losses, through westward advection and meridional divergence of nitrate rich waters, and by the biological sink. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{OCEAN} ; {CYCLE} {BIOGEOCHIMIQUE} ; {PRODUCTION} {BIOLOGIQUE} ; {VARIABILITE} ; {DYNAMIQUE} {DE} {L}'{EAU} ; {UPWELLING} ; {EL} {NINO} ; {TEMPERATURE} ; {SALINITE} ; {NITRATE} ; {CHLOROPHYLLE} ; {BIOMASSE} ; {FLUX} ; {MODELISATION} ; {PACIFIQUE} {EQUATORIAL}},
  booktitle = {{B}iogeochemical conditions in the equatorial {P}acific in late 1994},
  journal = {{J}ournal of {G}eophysical {R}esearch},
  volume = {104},
  numero = {{C}2},
  pages = {3323--3339},
  ISSN = {0148-0227},
  year = {1999},
  DOI = {10.1029/98{JC}02713},
  URL = {https://www.documentation.ird.fr/hor/fdi:010017697},
}