@article{fdi:010023730,
  title = {{O}rigin and ages of mode waters in the {B}razil-{M}alvinas confluence region during austral winter 1994},
  author = {{M}aamaatuaiahutapu, {K}. and {P}rovost, {C}. and {A}ndri{\'e}, {C}hantal and {V}igan, {X}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he ventilation of the main thermocline associated with the formation of {S}ubtropical {M}ode {W}ater ({STMW}) and {S}ubantarctic {M}ode {W}ater ({SAMW}) within the {B}razil/{M}alvinas {C}onfluence region is investigated using satellite data, hydrographic data, and dissolved {CFC}s as transient tracers. {D}uring the winter of 1994, two types of {STMW} were observed. {B}oth types, 26.24 sigma theta and 26.46 sigma theta were formed within the warm pool of the {S}outh {A}tlantic {C}entral {W}ater ({SACW}). {T}he {SAMW} is found on the 27.10 sigma theta density surface. {T}his surface lies in the minimum salinity layer of the {A}ntarctic {I}ntermediate {W}ater ({AAIW}). {T}he mode waters are dated using {CFC} ratios. {T}o our knowledge, this is the first estimate of the age of the mode waters in the region using the {CFC}-113:{CFC}-11 ratio method. {T}he lighter {STMW} was being formed during the cruise. {T}he heavier {STMW} was found to be 6 plus or minus 3 years old and is thought to have circulated in the subtropical gyre without losing its primary properties. {T}he {SAMW}, or the lightest {AAIW} has an age of 3 plus or minus 2 years. {T}his water is very young compared with the oldest (10 plus or minus 5 years) and heaviest component of the {AAIW}; which circulates within the subropical gyre. {T}he formation of the {STMW} in the confluence region is dependent on the southward extension of the {B}razil {C}urrent. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{COURANT} {MARIN} ; {VARIATION} {SAISONNIERE} ; {CIRCULATION} {OCEANIQUE} ; {MASSE} {D}'{EAU} ; {DYNAMIQUE} {DE} {L}'{EAU} ; {THERMOCLINE} ; {TELEDETECTION} {SPATIALE} ; {HYDROGRAPHIE} ; {PROFIL} {VERTICAL} ; {COMPOSE} {ORGANOCHLORE} ; {GAZ} {DISSOUS} ; {TEMPERATURE} {DE} {SURFACE} ; {DENSITE} ; {SALINITE} ; {CIRCULATION} {THERMOHALINE} ; {FACTEUR} {CLIMATIQUE} ; {OXYGENE} {DISSOUS} ; {TRACEUR} {OCEANIQUE} ; {ATLANTIQUE} {SUD} ; {BRAZIL} {MALVINAS} {CONFLUENCE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch},
  volume = {104},
  numero = {{C}9},
  pages = {21,051--21,061},
  ISSN = {0148-0227},
  year = {1999},
  DOI = {10.1029/1999{JC}900177},
  URL = {https://www.documentation.ird.fr/hor/fdi:010023730},
}