Early warning signal for a tipping point suggested by a millennial Atlantic Multidecadal Variability reconstruction.

ABSTRACT: Atlantic multidecadal variability is a coherent mode of natural climate variability occurring in the North Atlantic Ocean, with strong impacts on human societies and ecosystems worldwide. However, its periodicity and drivers are widely debated due to the short temporal extent of instrumental observations and competing effects of both internal and external climate factors acting on North Atlantic surface temperature variability. Here, we use a paleoclimate database and an advanced statistical framework to generate, evaluate, and compare 312 reconstructions of the Atlantic multidecadal variability over the past millennium, based on different indices and regression methods. From this process, the best reconstruction is obtained with the random forest method, and its robustness is checked usin

SUBMITTER: Michel SLL 

PROVIDER: S-EPMC9440003 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature