@article{fdi:010092723,
  title = {{AMOC} variability in climate models and its dependence on the mean state},
  author = {{F}erster, {B}. {S}. and {F}edorov, {A}. {V}. and {M}ignot, {J}uliette and {G}uilyardi, {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{U}nderstanding internal variability of the climate system is critical when isolating internal and anthropogenically forced signals. {H}ere, we investigate the modes of {A}tlantic {M}eridional {O}verturning {C}irculation ({AMOC}) variability using perturbation experiments with the {I}nstitut {P}ierre-{S}imon {L}aplace's ({IPSL}) coupled model and compare them to {C}oupled {M}odel {I}ntercomparison {P}roject {P}hase 6 ({CMIP}6) pre-industrial control simulations. {W}e identify two characteristic modes of variability-decadal-to-multidecadal ({DMD}var) and centennial ({CEN}var). {T}he former is driven largely by temperature anomalies in the subpolar {N}orth {A}tlantic, while the latter is driven by salinity in the western subpolar {N}orth {A}tlantic. {T}he amplitude of each mode scales linearly with the mean {AMOC} strength in the {IPSL} experiments. {T}he {DMD}var amplitude correlates well with the {AMOC} mean strength across {CMIP}6 models, while the {CEN}var mode does not. {T}hese findings suggest that the strength of {DMD}var depends robustly on the {N}orth {A}tlantic mean state, while the {CEN}var mode may be model-dependent.},
  keywords = {{AMOC} ; variability ; subpolar {N}orth {A}tlantic ; {CMIP}6 ; {ATLANTIQUE} ; {ATLANTIQUE} {NORD}},
  booktitle = {},
  journal = {{G}eophysical {R}esearch {L}etters},
  volume = {52},
  numero = {3},
  pages = {e2024{GL}110356 [12 p.]},
  ISSN = {0094-8276},
  year = {2025},
  DOI = {10.1029/2024gl110356},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092723},
}