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Old 11-14-2019, 05:49 PM
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Here's a list of the highest tides in Venice since 1923. So not quite a hundred years ago. 3 of those occured before 1966 (the previous record holder and close-ish to the midpoint of the time span). 16 afterwards with 11 since 2000. (I guess the 1968 one is closer to the midpoint. So like a 5-15 split.)

The banning of artesian wells in the 60s helped slow down subsidence. But still a lot more recent peaks than before. Sea level rise in general isn't helping.

Note that some years appear more than once. Like 2019 and 1979. That suggests overall persistent weather patterns play a role. A high or low gets stuck somewhere and winds start to push water for a long period of time. Sort of like El Nino.