@article{fdi:010086987,
  title = {{T}hermohaline patterns of intrinsic {A}tlantic {M}ultidecadal {V}ariability in {MPI}-{ESM}-{LR}},
  author = {{Z}anchettin, {D}. and {F}ang, {S}. {W}. and {K}hodri, {M}yriam and {O}mrani, {N}. {E}. and {R}ubinetti, {S}. and {R}ubino, {A}. and {T}immreck, {C}. and {J}ungclaus, {J}. {H}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A} vivid scientific debate exists on the nature of the {A}tlantic {M}ultidecadal {V}ariability ({AMV}) as an intrinsic rather than predominantly forced climatic phenomenon, and on the role of ocean circulation. {H}ere, we use a multi-millennial unperturbed control simulation and a {H}olocene simulation with slow-varying greenhouse gas and orbital forcing performed with the low-resolution version of the {M}ax {P}lanck {I}nstitute {E}arth {S}ystem {M}odel to illustrate thermohaline conditions associated with twelve events of strong {AMV} that are comparable, in the surface anomalies, to observations in their amplitudes (similar to 0.3 degrees {C}) and periods (similar to 80 years). {T}he events are associated with recurrent yet spatially diverse same-sign anomalous sea-surface temperature and salinity fields that are substantially symmetric in the warm-to-cold and following cold-to-warm transitions and only partly superpose with the long-term spatial {AMV} pattern. {S}ubpolar cold-fresh anomalies develop in the deep layers during the peak cold phase of strong {AMV} events, often in association with subtropical warm-salty anomalies yielding a meridional dipole pattern. {T}he {A}tlantic meridional overturning circulation ({AMOC}) robustly weakens during the warm-to-cold transition of a strong {AMV} event and recovers thereafter, with surface salinity anomalies being potential precursors of such overturning changes. {A} {H}olocene simulation with the same model including volcanic forcing can disrupt the intrinsic {AMV}-{AMOC} connection as post-eruption periods often feature an {AMOC} strengthening forced by the volcanically induced surface cooling. {O}verall, our results support the {AMV} as a potential intrinsic feature of climate, whose episodic strong anomalous events can display different shades of spatial patterns and timings for the warm-to-cold and subsequent cold-to-warm transitions. {A}ttribution of historical {AMV} fluctuations thus requires full consideration of the associated surface and subsurface thermohaline conditions and assessing the {AMOC}-{AMV} relation.},
  keywords = {{A}tlantic {M}ultidecadal {V}ariability ; {I}ntrinsic ocean variability ; {M}eridional overturning circulation ; {P}aleoclimate simulation ; {V}olcanic forcing ; {ATLANTIQUE}},
  booktitle = {},
  journal = {{C}limate {D}ynamics},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[23 p.]},
  ISSN = {0930-7575},
  year = {2023},
  DOI = {10.1007/s00382-023-06679-w},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086987},
}