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From the conclusions:

> I applied Bayesian data analysis to observations from submarine cables and tide gauges to infer the changes in the Florida Current transport at 27°N during 1909–2018.

These are important techniques for deriving a proxy for missing historical flow data. I have no confidence that the algorithms model a real-world trend but it seems to have promise as one component of a decent future model.



I did open the article/Ctrl + F for submarine cables(where did that come from?)

But was curious what can you tell from those cables? Aren't they inaccessible? Is it a strain thing or do they somehow have positioning?


I followed qserasera's link to the Nature paper. The Methods [1] section says:

> I also use Florida Current transport from submarine telephone cables at 27∘N between West Palm Beach and Grand Bahama (Figs. 1b and 2). Using electromagnetic theory, one can estimate changes in the flow from voltages induced across the cable due to the transport of charged particles by the variable current.

[1] https://www.nature.com/articles/s41467-020-17761-w#Sec8


What... wow. I was thinking maybe resistance (fiber?) or something but wow. Anyway thanks for that, very interesting.




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