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The long and narrow rectangular shape of the Adriatic Sea is the source of an oscillating water motion (called seiche) along the basin's minor axis. [5]The principal oscillation, which has a period of 21 hours and 30 minutes and an amplitude around 0.5 meters at the axis' extremities, supplements the natural tidal cycle, so that the Adriatic Sea has much more extreme tidal events than the rest ...
The most extreme are the spring tides known as the acqua alta (Italian for "high water"), which regularly flood much of Venice. The nearby Marano-Grado Lagoon, with a surface area of around 160 square kilometres (62 square miles), is the northernmost lagoon in the Adriatic Sea and is sometimes called the "twin sister of the Venice lagoon".
Tidal range is the difference in height between high tide and low tide. Tides are the rise and fall of sea levels caused by gravitational forces exerted by the Moon and Sun, by Earth's rotation and by centrifugal force caused by Earth's progression around the Earth-Moon barycenter. Tidal range depends on time and location.
Tide tables, sometimes called tide charts, are used for tidal prediction and show the daily times and levels of high and low tides, usually for a particular location. [1] Tide heights at intermediate times (between high and low water) can be approximated by using the rule of twelfths or more accurately calculated by using a published tidal ...
High tides that cause flooding in major portions of the city usually occur multiple times a year. See photos of Venice: But 2016 looks like it will be off to a dry start in Venice.
The normal tide levels are known to increase significantly in a conducive environment, leading to coastal flooding; this phenomenon is most famously known in Italy—especially Venice—as acqua alta. Such tides can exceed normal levels by more than 140 centimetres (55 in), [36] with the highest tide level of 194 centimetres (76 in) observed on ...
On 4 November 1966, an abnormal occurrence of high tides, rain-swollen rivers and a severe sirocco wind caused the canals to rise to a height of 194 cm or 6 ft 4 in. [1] Although Venice is known for its acque alte or high waters which often flood the streets, this flood left thousands of residents without homes and caused over six million ...
Venice was inundated by an exceptional high tide Monday, putting three-quarters of the famed Italian city and killing six people across Italy. Venice was inundated by an exceptional high tide ...