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13-11-2019, 02:43 PM
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Venice floods: Climate change behind highest tide in 50 years, says mayor



https://www.bbc.co.uk/news/world-europe-50401308 (More photos)

The highest water levels in the region in more than 50 years will leave "a permanent mark", Venice Mayor Luigi Brugnaro tweeted. "Now the government must listen," he added. "These are the effects of climate change... the costs will be high."

The waters in Venice peaked at 1.87m (6ft), according to the tide monitoring centre. Only once since official records began in 1923 has the tide been higher, reaching 1.94m in 1966.

St Mark's Basilica was flooded for the sixth time in 1,200 years, according to church records. Mr Brugnaro said the famous landmark had suffered "grave damage". The crypt was completely flooded and there are fears of structural damage to the basilica's columns.

Mr Brugnaro said the damage was "huge" and that he would declare a state of disaster, warning that a project to help prevent the Venetian lagoon suffering devastating floods "must be finished soon".

People throughout the city waded through the flood waters. Three waterbuses sank in Venice but tourists continued their sightseeing as best they could. One French couple told AFP news agency that they had "effectively swum" after some of the wooden platforms placed around the city in areas prone to flooding overturned.

A project to protect the city from flooding has been under way since 2003 but has been hit by soaring costs, scandals and delays. The so-called Mose project - a series of large barriers or floodgates that would be raised from the seabed to shut off the lagoon in the event of rising sea levels and winter storms - was successfully tested for the first time in 2013.The project has already cost billions of euros in investment. According to Italy's infrastructure ministry, the flood barriers will be handed over to the Venice city council at the end of 2021 following the "final phase" of testing.
Is climate change behind Venice flooding?

By BBC meteorologist Nikki Berry

The recent flooding in Venice was caused by a combination of high spring tides and a meteorological storm surge driven by strong sirocco winds blowing north-eastwards across the Adriatic Sea. When these two events coincide, we get what is known as Acqua Alta (high water).

This latest Acqua Alta occurrence in Venice is the second highest tide in recorded history. However, if we look at the top 10 tides, five have occurred in the past 20 years and the most recent was only last year.

While we should try to avoid attributing a single event to climate change, the increased frequency of these exceptional tides is obviously a big concern. In our changing climate, sea levels are rising and a city such as Venice, which is also sinking, is particularly susceptible to such changes.
Abnormal flooding may yet be the death of Venice .....
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13-11-2019, 05:25 PM
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Re: Venice floods: Climate change behind highest tide in 50 years, says mayor

Spring tides and gale force winds blowing in the right direction are a deadly combination.
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13-11-2019, 06:15 PM
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Re: Venice floods: Climate change behind highest tide in 50 years, says mayor

I thought the Med didn't have tides........
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14-11-2019, 12:42 PM
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Re: Venice floods: Climate change behind highest tide in 50 years, says mayor

Originally Posted by Besoeker ->
I thought the Med didn't have tides........
The daily tides are hardly noticeable in the med as you say
Besoeker, but it does have spring tides when the moon and sun
are in conjunction or opposition, just like everywhere else on the
planet!
If this occurs at the same time as a large storm with a northerly
wind, l assume that drives the sea up towards venice and thus
magnifies the spring tides effect!
London is also at risk of similar events taking place, hence the
massivee Thames barrage that is placed across the river just
downstream of the city!
Regards Donkeyman!
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14-11-2019, 08:10 PM
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Re: Venice floods: Climate change behind highest tide in 50 years, says mayor

Originally Posted by Donkeyman ->
The daily tides are hardly noticeable in the med as you say
Besoeker, but it does have spring tides when the moon and sun
are in conjunction or opposition, just like everywhere else on the
planet!
If this occurs at the same time as a large storm with a northerly
wind, l assume that drives the sea up towards venice and thus
magnifies the spring tides effect!
London is also at risk of similar events taking place, hence the
massivee Thames barrage that is placed across the river just
downstream of the city!
Regards Donkeyman!
Spot on.

The Med has tides and some times they are higher than others.

Venice has been flooded before nothing new
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14-11-2019, 08:46 PM
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Re: Venice floods: Climate change behind highest tide in 50 years, says mayor

Originally Posted by galty ->
Venice has been flooded before nothing new
The "new" is the increased frequency of "highest" tides:

This latest Acqua Alta occurrence in Venice is the second highest tide in recorded history. However, if we look at the top 10 tides, five have occurred in the past 20 years and the most recent was only last year.
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15-11-2019, 05:09 PM
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Re: Venice floods: Climate change behind highest tide in 50 years, says mayor

Flooded Venice battles new tidal surge

St Mark's Basilica - dating back to the 11th Century - was hit by the flood



https://www.bbc.co.uk/news/world-europe-50430855

Flooded Venice has been hit by a new high tide of 160cm (5.3ft), giving residents no respite from a crisis costing Italy millions of euros.

World-famous St Mark's Square, a magnet for tourists, has been closed, and schools are shut for a third day.

The canal city's famous waterbuses - the vaporetti - are not running.
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17-11-2019, 09:52 PM
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Re: Venice floods: Climate change behind highest tide in 50 years, says mayor

Venice closes St Mark’s Square as floods hit for third time in week

Sun 17 Nov 2019 15.16 GMT

Venice was hit with an “acqua alta”, or high water, of 150cm (5ft) on Sunday, lower than Tuesday’s 187cm – the highest level in half a century – but still dangerous.

With four tides above 140cm since Monday, this is the worst week for high tides in Venice since 1872 when official statistics were first produced.
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18-11-2019, 12:48 AM
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Re: Venice floods: Climate change behind highest tide in 50 years, says mayor

This is all very tragic.

I love Venice. Have been going every year for the past 10 years or so.

So sad to see. It's not going to be there forever sadly so I'm fortunate to have been a few times.

Regardless of the disaster I truly believe the people there will pull together and get through it. The emergency services there are very focussed and will all be going the extra mile to look after people.
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18-11-2019, 01:03 AM
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Re: Venice floods: Climate change behind highest tide in 50 years, says mayor

Originally Posted by Realist ->
This is all very tragic.

I love Venice. Have been going every year for the past 10 years or so.

So sad to see. It's not going to be there forever sadly so I'm fortunate to have been a few times.

Regardless of the disaster I truly believe the people there will pull together and get through it. The emergency services there are very focussed and will all be going the extra mile to look after people.
Indeed ..... I remember visiting Venice in the 1960's and being enveloped by its individuality.
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