@article{fdi:010061351,
  title = {{O}n the evolution of the oceanic component of the {IPSL} climate models from {CMIP}3 to {CMIP}5 : a mean state comparison},
  author = {{M}ignot, {J}uliette and {S}wingedouw, {D}. and {D}eshayes, {J}ulie and {M}arti, {O}. and {T}alandier, {C}. and {S}eferian, {R}. and {L}engaigne, {M}atthieu and {M}adec, {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his study analyses the impact on the oceanic mean state of the evolution of the oceanic component ({NEMO}) of the climate model developed at {I}nstitut {P}ierre {S}imon {L}aplace ({IPSL}-{CM}), from the version {IPSL}-{CM}4, used for third phase of the {C}oupled {M}odel {I}ntercomparison {P}roject ({CMIP}3), to {IPSL}-{CM}5{A}, used for {CMIP}5. {S}everal modifications have been implemented between these two versions, in particular an interactive coupling with a biogeochemical module, a 3-band model for the penetration of the solar radiation, partial steps at the bottom of the ocean and a set of physical parameterisations to improve the representation of the impact of turbulent and tidal mixing. {A} set of forced and coupled experiments is used to single out the effect of each of these modifications and more generally the evolution of the oceanic component on the {IPSL} coupled models family. {M}ajor improvements are located in the {S}outhern {O}cean, where physical parameterisations such as partial steps and tidal mixing reinforce the barotropic transport of water mass, in particular in the {A}ntarctic {C}ircumpolar {C}urrent) and ensure a better representation of {A}ntarctic bottom water masses. {H}owever, our analysis highlights that modifications, which substantially improve ocean dynamics in forced configuration, can yield or amplify biases in coupled configuration. {I}n particular, the activation of radiative biophysical coupling between biogeochemical cycle and ocean dynamics results in a cooling of the ocean mean state. {T}his illustrates the difficulty to improve and tune coupled climate models, given the large number of degrees of freedom and the potential compensating effects masking some biases.},
  keywords = {{O}cean modelling ; {P}arameterizations ; {C}limate model ; {C}oupled ocean ; biogeochemistry ; {MONDE}},
  booktitle = {},
  journal = {{O}cean {M}odelling},
  volume = {72},
  numero = {},
  pages = {167--184},
  ISSN = {1463-5003},
  year = {2013},
  DOI = {10.1016/j.ocemod.2013.09.001},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061351},
}