@article{fdi:43857,
  title = {{A}ssimilation of temperature profiles in a general circulation model of the {T}ropical {A}tlantic},
  author = {{M}orli{\`e}re, {A}lain and {R}everdin, {G}. and {M}erle, {J}acques},
  editor = {},
  language = {{ENG}},
  abstract = {{T}hirty-six hundred temperature profiles collected during 1984 were assimilated into a multilayer primitive equation model of the {T}ropical ocean. {T}he method consists in a monthly correction of the simulated temperature field. {E}ach month, an observed field is computed from the temperature profiles with a successive correction analysis starting from the simulated field. {T}he difference between the observed field and simulation is computed, the model is restarted from the previous month, progressively introducing the difference as a {N}ewton forcing in the heat equation. {T}he sensitivity to the initial state is greatly reduced near the equator after six months, but persists for a longer time at higher latitudes. {T}he assimilated temperature structure is closer to the observations than was the unassimilated simulation. {T}he thermocline has strengthened, and low-frequency variability near the equator is close to the observed one, resulting in a more realistic zonal slope of the thermocline. {T}he current structure, although it still differs noticeably from the observations, is more realistic, with stronger near-surface countercurrents and a faster equatorial undercurrent. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{CIRCULATION} {OCEANIQUE} ; {TEMPERATURE} ; {PROFIL} {VERTICAL} ; {COURANT} {EQUATORIAL} ; {ATLANTIQUE} {TROPICAL}},
  booktitle = {},
  journal = {{J}ournal of {P}hysical {O}ceanography},
  volume = {19},
  numero = {12},
  pages = {1892--1899},
  ISSN = {0022-3670},
  year = {1989},
  DOI = {10.1175/1520-0485(1989)019<1892:{AOTPIA}>2.0.{CO};2},
  URL = {https://www.documentation.ird.fr/hor/fdi:43857},
}