@article{fdi:010062448,
  title = {{F}rom the subtropics to the equator in the {S}outhwest {P}acific : continental material fluxes quantified using neodymium data along modeled thermocline water pathways},
  author = {{G}renier, {M}. and {J}eandel, {C}. and {C}ravatte, {S}ophie},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he southwestern tropical {P}acific, part of a major pathway for waters feeding the {E}quatorial {U}ndercurrent, is a region of important geochemical enrichment through land-ocean boundary exchange. {H}ere we develop an original method based on the coupling between dynamical modeling and geochemical tracer data to identify regions of enrichment along the water pathways from the subtropics to the equator, and to allow a refined quantification of continental material fluxes. {N}eodymium data are interpreted with the help of modeled {L}agrangian trajectories of an {O}cean {G}eneral {C}irculation {M}odel. {W}e reveal that upper and lower thermocline waters have different pathways together with different geochemical evolutions. {T}he upper thermocline waters entering the {S}olomon {S}ea mainly originate from the central subtropical gyre, enter the {C}oral {S}ea in the {N}orth {V}anuatu {J}et and likely receive radiogenic neodymium from the basaltic island margins encountered along their route. {T}he lower thermocline waters entering the {S}olomon {S}ea mainly originate from northeast of {N}ew {Z}ealand and enter the {C}oral {S}ea in the {N}orth {C}aledonian {J}et. {D}epletion of their neodymium content likely occurs when flowing along the {A}ustralian and {P}apua coasts. {D}ownstream from the {S}olomon {S}ea, waters flowing along the {P}apua {N}ew {G}uinea margins near the {S}epik river mouth become surprisingly depleted in their neodymium content in the upper thermocline while enriched in the lower thermocline. {T}his coupled approach is proposed as strong support to interpret the origin of the equatorial {P}acific natural fertilization through a better understanding of the circulation, important objectives of the international {GEOTRACES} and {SPICE} programs, respectively.},
  keywords = {{PACIFIQUE} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch.{O}ceans},
  volume = {119},
  numero = {6},
  pages = {3948--3966},
  ISSN = {2169-9275},
  year = {2014},
  DOI = {10.1002/2013jc009670},
  URL = {https://www.documentation.ird.fr/hor/fdi:010062448},
}