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Specifically:
The ocean provides ‘memory’ to the Earth’s climate system through the high heat capacity of water, but also the redistribution of heat from the surface to the deep ocean and across latitudes. In regions and at timescales where the AMOC is coherent, the co-variability of the large-scale ocean circulation increases the predictability of the climate system and simplifies the observational strategy. In areas where the AMOC is incoherent, the different transport variability across latitudes results in the convergence or divergence of ocean heat and freshwater content, and can lead to forcing of the atmosphere, weather and climate.
Using the AMOC records developed by EPOC, coupled and forced ocean models, and a targeted 2-year process study, we will determine over what regions and on what timescales the large-scale ocean circulation behaves as a coherent circulation pattern vs where coupled or internal ocean processes lead to incoherent behaviour.
EPOC is funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union. Neither the European Union nor the granting authority can be held responsible for them.