@article{fdi:010055650,
  title = {{O}n the formation of barrier layers and associated vertical temperature inversions : a focus on the northwestern tropical {A}tlantic},
  author = {{M}ignot, {J}uliette and {L}azar, {A}lban and {L}acarra, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A} unique barrier layer ({BL}) system in terms of persistence, extension, and associated subsurface temperature maximum is present seasonally in the northwestern tropical {A}tlantic. {B}ased on climatological output of a general circulation ocean model, we show here that its development consists of two phases. {I}n summer, the {BL} is relatively shallow and thin but subsurface temperature maxima are intense. {T}he latter develop as a result of the specific seasonality of the freshwater discharge in this area, which limits the mixed layer to a very thin depth while the intense radiative heat flux penetrates significantly below, thereby heating the subsurface waters protected from air-sea interactions and inducing a barrier layer between the mixed layer and the ocean interior. {I}n winter, the {BL} development is due to a surface decrease in salinity associated with the surface freshwater capping, which decouples the pycnocline, and hence the winter mixed layer, from the thermocline. {T}he mechanism is ubiquitous in the sense that it is very similar to that of other areas at the same latitude, as well as at high latitudes in regions of seasonal surface freshening. {R}esults are discussed in the light of a simple linear equation linking the {BL} development to time evolution of {S}ea {S}urface {T}emperature and {S}ea {S}urface {S}alinity stratification.},
  keywords = {{ZONE} {TROPICALE} ; {ATLANTIQUE} {NORD} {OUEST}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch. {O}ceans},
  volume = {117},
  numero = {},
  pages = {{C}02010},
  ISSN = {0148-0227},
  year = {2012},
  DOI = {10.1029/2011jc007435},
  URL = {https://www.documentation.ird.fr/hor/fdi:010055650},
}