@article{fdi:31178,
  title = {{S}outhwestward extent of chlorophyll-enriched waters from the peruvian and equatorial upwellings between {T}ahiti and {P}ananama},
  author = {{D}andonneau, {Y}ves and {E}ldin, {G}{\'e}rard},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he transition zone between waters deriving from the {P}eruvian and {E}quatorial upwellings, and oligotrophic waters of the central {S}outh {T}ropical {P}acific, was examined by sea-surface chlorophyll sampling carried out by merchant ships on the {T}ahiti-{P}anama track. {T}he results from 118 transects ({D}ecember 1979 to {S}eptember 1985) show that this transition is generally associated with convergences between the {W}estward {S}outh {E}quatorial current and eastward flows, as indicated by contemporaneous temperature sections obtained from expendable bathythermographs. {T}he transition position varies between 5 and 17°{S} and variations occur mostly on time scales of a month or less. {T}he {T}uamotu atolls (15 to22°{S}, 135 to 150°{W}) were observed to be reached by waters deriving from the upwellings on 14 % of the transects; this might help to explain the anomalous abundance of life on these atolls. {T}he 1982-1983 {E}l {N}ino resulted in a fall in chlorophyll concentrations in the eastern tropical {P}acific, but dit not cause a significant change of the position of the transition. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{CHLOROPHYLLE} ; {SURFACE} {MARINE} ; {UPWELLING} ; {MASSE} {D}'{EAU}},
  booktitle = {},
  journal = {{M}arine {E}cology.{P}rogress {S}eries},
  volume = {38},
  numero = {},
  pages = {283--294},
  ISSN = {0171-8630},
  year = {1987},
  URL = {https://www.documentation.ird.fr/hor/fdi:31178},
}