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The say of the week November 13, 2008

Posted by dorigo in humor, internet, news.

A Venezia alle 10 l’alta marea era a 104 centimetri, soprattutto nelle aree più basse del centro storico

(In Venice at 10AM the tide reached 104 cm, particularly in the lowest areas of the town center)

Il Corriere della Sera (today’s online version of the best-selling daily newspaper in Italy) – apparently, sea water levels are a more local phenomenon than I thought.



1. Gordon Stangler - November 13, 2008

Is that a good thing, or a bad thing?

2. dorigo - November 13, 2008

I was being sarcastic!

3. dorigo - November 13, 2008

To be clear: when the high tide reaches above 90cm or so, some parts of venice start to get flooded. But the level of waters is the same in all parts of the town (with very good approximation!).


4. Gordon Stangler - November 13, 2008

Oh. That makes sense. Thank you.

5. Mauro Da Lio - November 13, 2008

It only means that the article was not peer reviewed 🙂

6. Anonymous - November 14, 2008

Tides can be surprisingly local in some places. See, e.g.

Resonant effects can be very large. Not sure if such effects are significant in the Venice area.

7. dorigo - November 14, 2008

Anon, I know quite well the map of how high tides vary during tidal cycles in the venice lagoon. There are differences, but Venice is 3 km across, and the article was mentioning “low areas” in the city center, which have a scale of 10s of meters.


8. Mauro Da Lio - November 14, 2008

Resonance occurs in tapering channels and gulfs.
In the Lagoon there are differences in the response of the water level: the Lagoon is a dnamical system forced by the see level through small openings. The different points of the Lagoon respond later and with different amplitudes. But that happens on scales of km.

9. dorigo - November 17, 2008

True Mauro. I remember reading that on November 4th, 1966, the water reached well above 2 meters above sea level at the Alberoni (possibly above 2.10m), while the maximum stayed at 1.94 meters in downtown Venice.


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