It's worth pointing out that there likely is no such thing as the AMO. The scientist who coined the term in some pioneering work in 2000 has, over the past few

It's worth pointing out that there likely is no such thing as the AMO. The scientist who coined the term in some pioneering work in 2000 has, over the past few years, been extremely outspoken that it was probably an errant interpretation of the data available at the time (e.g. https://michaelmann.net/content/rise-and-fall-atlantic-multidecadal-oscillation https://michaelmann.net/content/rise-and-fall-atlantic-multi...) and even just a year ago published an article in Nature which more or less thoroughly eliminates the possibility of such a mode of multi-decadal variability actually existing (https://www.nature.com/articles/s41467-019-13823-w https://www.nature.com/articles/s41467-019-13823-w).