@article{fdi:010023732,
  title = {{T}racer distributions and deep circulation in the western tropical {A}tlantic during {CITHER} 1 and {ETAMBOT} cruises, 1993-1996},
  author = {{A}ndri{\'e}, {C}hantal and {T}ernon, {J}ean-{F}ran{\c{c}}ois and {B}ourl{\`e}s, {B}ernard and {G}ouriou, {Y}ves and {O}udot, {C}laude},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he paper prestents {CFC} and nontransient tracer observations in the western equatorial {A}tlantic {O}cean on repeated sections along 7°30°{N}, the 35°{W} meridian, and a transect crossing the {C}eara {R}ise. {T}hree {W}orld {O}cean {C}irculation {E}xperiment cruises have been carried out in this area, in {F}ebruary-{M}arch 1993 ({CITHER} 1) and {S}eptember-{O}ctober 1995 and {A}pril-{M}ay 1996 ({ETAMBOT} 1 and 2). {T}ogether with the tracer data, the direct current measurements are used to deduce the circulation pathways. {T}he data confirm the principal circulation features of the {U}pper {N}orth {A}tlantic {D}eep {W}ater within the area. {T}he {D}eep {W}estern {B}oundary {C}urrent flows southward to the {DWBC} reciruclation whose origin appears variable. {T}he largest variability is observed along the 35°{W} meridional section, where the {DWBC} bifurcates eastward north of the 3°{S} but the eastward equatorial flow does not appear to be permanent. {A}t the {M}iddle {N}orth {A}tlantic {D}eep {W}ater level, {CFC} distributions exhibit the most important contrast between waters of northern and southern origin. {T}he circulation at the {L}ower {N}orth {A}tlantic {D}eep {W}ater level, mainly controlled by topography, looks more permanent because the {DBC} is regularly observed during the three cruises, and there is no evidence for a northwestward recirculation along the {M}id-{A}tlantic {R}idge. {T}he transient behavior of {CFC} distributions, which is superimposed on local circulation effects, can be seen clearly through their temporal evolution wihtin the {DWBC}. {T}he variability of the deep circulation observed during the 1993-1996 interval rules out a dominant variability in response to semi annual forcing. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{COURANT} {MARIN} ; {CIRCULATION} {PROFONDE} ; {MASSE} {D}'{EAU} ; {COMPOSE} {ORGANOCHLORE} ; {GAZ} {DISSOUS} ; {DISTRIBUTION} {SPATIALE} ; {BATHYMETRIE} ; {VARIATION} {SAISONNIERE} ; {BASSIN} {OCEANIQUE} ; {TOPOGRAPHIE} ; {PROFIL} {VERTICAL} ; {CORRELATION} ; {SALINITE} ; {OXYGENE} {DISSOUS} ; {TEMPERATURE} ; {ANALYSE} {PHYSICOCHIMIQUE} ; {SILICATE} ; {DYNAMIQUE} {DE} {L}'{EAU} ; {TRACEUR} {OCEANIQUE} ; {ATLANTIQUE} {EQUATORIAL}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch},
  volume = {104},
  numero = {{C}9},
  pages = {21,195--21,215},
  ISSN = {0148-0227},
  year = {1999},
  DOI = {10.1029/1999{JC}900094},
  URL = {https://www.documentation.ird.fr/hor/fdi:010023732},
}