What is it about December that seems to call the acqua alta with a siren song of irresistible allure? Other people are already thinking about Christmas, but at the moment (6:00 AM) I am thinking about where to put all the stuff that’s on the floor for when the tide tops the predicted 140 cm.
The maximum is forecast for 8:45 and maybe, seeing that is very little wind, and it’s from the north, just maybe we will escape having the lagoon pay us a personal visit. Then again, maybe not.
High water gets here by any and all routes, not merely by spilling over the edges of the sidewalks. It comes up through the drains. And here you can see that it also comes up through any possible cranny. I discovered this tiny hole in the pavement in front of our house only after I noticed the little ripples caused by the invisible jet of water beneath the surface. Oh well.
I mention this for two reasons.
One, because a year ago, the first time the tide reached that height, it did indeed come indoors. Of course we blocked the entrance, which I guess works for some people but for us it only slowed the arrival of the old H2O. And the barrier did nothing, as you may recall, to stop the water from coming in through the wall under the kitchen sink, or up through a fissure in the floor.
The butcher up the street doesn't look too concerned (Nov. 30, 2009).
Two, because I don’t want you to think that when I scoff at the chronic drama suffusing reports of high water, that I am doing so because I am at no risk of having to sweep the lagoon out of the house, then wash the floors with fresh water.
I scoff because washing the floors is a good thing and I should do it more often. And also because last week we put the refrigerator and the washing machine up on wooden beams, three inches above the floor. Yesss!
And I scoff especially today because last night I read the weather news from Eastern Europe and it’s a goddam disaster out there. An Arctic front has assaulted every country from Germany to Albania, visiting blizzards, icy rain, and record sub-zero temperatures on millions of people. People trapped in their cars all night on the highways in the snow, people freezing to death, major airports closed, hundreds of cancelled flights. Thousands evacuated from their flooded houses, and I mean really flooded; some of these dwellings are now ruined by more than three feet of water inside.
More severely undisturbed people getting on with the day (Nov. 30, 2009).
And then we read the forecast for Venice: Acqua alta. I have to tell you, after the deafening symphony of catastrophe from out there, “high water” sounds like a little tune played on a baby’s xylophone.
An inch of water on our floor for two hours, if that’s what transpires, doesn’t deserve more than a few deep sighs. Of course it will be higher in the Piazza San Marco — of course it will be inconvenient for people going to work (the tourists love it, so they don’t count) and will require walking on narrow walkways (I mean, if you haven’t already figured out that you needed to put on boots), and the vaporettos will all be sent up the Grand Canal for a couple of hours because they can’t get under two of the bridges on their route, so people will have to walk somewhat further than they normally do to get from their usual vaporetto stop to wherever they’re going. Terrible.
The emergency forces are out all over Europe trying to save people’s lives. Here, by noon it’s all going to be over.
It’s almost embarrassing.
If you sell things that water could damage, you think ahead. This shop also has the barrier across the front door, but the owners wisely activated Plan B (Nov. 30, 2009).
I have often mentioned that predictions of high water in Venice turn out to be as accurate as weather predictions anywhere else. Sometimes even less accurate, given how sensitive the whole lagoon situation is to all sorts of factors, including wind.
The reality of acqua alta at a modest level is that it doesn't uniformly cover many streets. Here you see people going from dry to wet, then it will be back to dry again.
The last week or so has undoubtedly been rather trying for the dauntless Paolo Canestrelli, director of the Tide Center. Because while the Gazzettino, rightly or wrongly, published a series of articles that sounded fairly alarmist: “Feast of the Salute with your hipboots,” “Feast of the Salute with no walkways,” “F of the S at 120 cm [four feet] of high water,” and so on, it didn’t turn out quite that way.
These stories were irksome for a few reasons, none of which had to do with whether or not I had to put on my hipboots.
First, the area around the basilica of the Salute is much higher than the Piazza San Marco, therefore a tide prediction which sounds drastic in one place won’t be nearly so much so in another.
As you see here in via Garibaldi. The board as walkway is a great idea but only if it's long enough.
Second, so far this autumn few forecasts have turned out as given. The 120 cm repeatedly predicted for Sunday morning? We got 103 [3 feet].
The tide did finally manage to pull itself up to 122 cm, but that was at 12:10 Sunday night, when probably there weren’t many people or taxis or barges around to be inconvenienced.
A few nights later, the sirens sounded with two additional tones, signaling the probable arrival of 120-130 cm [4-5 feet] of water. Two tones means that we will have some water about halfway up the street outside our door. But in the end, our canal did no more than kiss the edge of the fondamenta. The fact that there was virtually no wind also helped.
Regardless of the height or non-height of the eventual water, articles dramatize that the city has “water on the ground” without specifying the depth — sometimes it can be two inches, but the term “high water” is usually used by the media to sound as if the levees have broken. And these articles never mention how much of Venice has water, making it sound as if the entire city were going under. Someone might be sufficiently original as to publish a story that says “Two tones means that up to 29 per cent of the city is under water,” but I have yet to see one that says “71 per cent of the city is bone dry.”
I realize that drama is entertaining, but why dramatize it at all? It’s not dramatic. It’s temporarily slightly tiresome, at a very low level on the Zwingle Slightly Tiresome Index. I’d rate it a 2, the same as hanging out the laundry.
This would qualify as a true annoyance. For some reason this delivery-person was put ashore at an ill-advised spot near San Marco, and now his way forward is completely blocked by the walkways. (They spread out in a long T-shape beyond the edge of this picture.) He has obviously recognized that his only option is to wait till the workmen make a break in the barrier, which will be soon, considering how far down the tide has already fallen.
Now let me turn a sympathetic eye on the indomitable Canestrelli at the Tide Center. Because no matter what prediction he gives — predictions which are always made according to information which has been scientifically gathered, even if journalists then recast them to sound like the last act of “Gotterdammerung” — people revile him. This is either because the prediction turned out to be accurate, and inconvenient, or because it wasn’t accurate, in which case people throw another armload of brickbats at him.
This is regrettable because the Center has just recently created a new mathematical model which has attained notably higher precision — an accomplishment for which Canestrelli was recently awarded a prize by the Italian government. No rude remarks, thank you.
But nature resists our assumptions, as Canestrelli is the first to admit. “Look at the disastrous rainfall on the Veneto on November 1,” he told the Gazzettino on November 11; “it turned out to be ten times more than what was predicted. Unfortunately, even with progress, there is still a wide margin of error.”
In the case of the high water on November 10, he explained that “On Thursday our models didn’t predict anything over 100 cm. Only in the early morning [Friday, November 10] did we see indications that it might be higher, so we activated the sirens to warn it might reach 110 cm. We then raised the forecast to 115 cm. But unfortunately high water, like other weather phenomena, is very hard to predict even if you’re continually monitoring it.”
That particular series of unpredicted events was caused by a number of factors which aren’t taken into account in the simplistic popular impression of the Tide Center’s skills. “Even though the weather was improving,” Canestrelli continued, “there was the return of a seiche wave in the Adriatic” [the public, including me, isn’t very good at keeping track of the seiche waves out there], “a significant rise in the barometric pressure, and a drop in the wind.
“This was a very strange situation in that the increase in pressure didn’t blunt the tide; in my 30 years here I’ve only seen that happen once or twice. The problem is that the pressure, in spite of the increase of 10 millibars, remained at an extremely low level rarely seen in our latitudes.”
Technically one could say there was still acqua alta at the Piazza San Marco but it has obviously begun to subside.
All this gives the tiniest indication of how many different and mutating factors affect the height of the tide and the accuracy of the forecasts. Now let’s move on to another element which is much easier to grasp: Money and manpower.
“What can we do?” he asks more or less rhetorically. “Few departments are as indispensible as the Tide Center, but we risk sinking to the bottom.
True, just on the other side of the walkways there is still water in the Piazza. Evidently the person with the big bag isn't too worried about its contents, or about waiting ten minutes. It's obviously on its way out.
“For 2010, the budget is for one million euros. But 46,000 euros are for operating costs, and another 500,000 — allocated, but so far never actually seen — are earmarked for the maintenance of the equipment.
“How can we keep going with funding like this? The money that remains is all we have to give to the personnel, who are on call 24 hours a day.
“How can it be that a department which is crucial to the well-being of an entire city isn’t regarded as the apple of the eye of the emergency services? There was a time when we had all the interest we needed to guarantee efficiency and accuracy. Now times have changed.
At 9:20 this shop in the Piazza San Marco had water on its floor, an event for which, judging by the paving, it has been well prepared. The shop is supposed to open in ten minutes and you can see how agitated the owner and staff are. They're not even here yet.
“Furthermore,” Canestrelli goes on, “we risk reaching the limit of our capacity. Up until last year the Center had 17 employees; now we have 13 and those include people in administration and motor-launch drivers. This leaves very few who are involved in the forecast service. With this level of personnel, during the high-water season of October till May, we can’t monitor the situation 24 hours a day.”
And a note that is drowned-out in the chaotic chorus of who needs to know how high the water’s going to be is from the so-called ecological workers. Not so much for collecting the trash, which they overlook on high-water days, but because they have to know — in advance, please — whether they’re going to need to muster the troops to set up the passarelle, or temporary walkways. Preferably before the water is above the ankles.
The clever thing to do, it would seem to me, would be for the Tide Center to estimate the tide toward the higher end of the scale. Just to be on the safe side. I was very proud of myself for coming up with this clever and amusing idea.
Then Canestrelli told the Gazzettino that that’s pretty much what they’re doing.
So all this being said, let us dial down the volume on the wails preceding the next expected high tide. It may turn out to be a little — or somewhat — or a lot — different than you thought it was going to be. I suggest you buy a pair of boots and get on with your life.
If there’s one thing people everywhere know about Venice, it’s that sometimes those romantic canals try to barge into your house.
This is the kind of image that is often presented as "the end is nigh" for Venice. As you see, the man is having hysterics.
Rather than “flooding,” Venetians call this acqua alta, or “high water” (literally “high tide”). Or, depending on how deep it’s likely to be, sometimes they call it “acqua in terra,” or “water on the ground,” which is less dramatic and often more accurate.
I’ve got water on the brain at the moment because night before last, the warning siren sounded again. It indicated the lowest predicted level, one out of four, which was nice, and in the end we barely got any at all. With rare exceptions, acqua alta, more than being some kind of apocalyptic affliction, as it is often portrayed, is really a low-grade nuisance. If it happens often, as it has this winter, it becomes as annoying as any other uninvited guest who doesn’t realize it’s time to go home.
There are so many notions people have about high water, based on the generally inaccurate and overwrought accounts in the press, that I thought I’d review and readjust a few of them.
It’s always happening, or likely to happen. Not really. This winter we’ve had more acqua in terra (again, not really what I’d call “alta”) more often than many other winters. On the other hand, there have been years when I haven’t put my boots on even once. Yet all kinds of claims keep being thrown around in stories written about this little phenomenon. The website of the basilica of San Marco states that water begins to flood the Piazza San Marco, just in front of the church, 250 days a year. Check my math, but that works out to 8 months. A photo caption on the National Geographic website claims that Venice has high water ten times a month. That’s crazy talk.
It creates, or will create, really big, really bad problems.
If for some reason your kids (or somebody else's) don't have boots, high water can be somewhat demanding. Then again, why don't they just go barefoot? I've done it and I'm still alive.
I’m not sure what people think those might be, but the words “acqua alta” seem to inspire a lot of hyperventilating outside Venice (and even inside Venice, mostly from merchants around the Piazza San Marco). I’m not saying that having to put the stuff in your store up on higher shelves isn’t annoying, or that having to sweep out the receding brackish water and then wash the floor with fresh water isn’t annoying. But in 9 cases out of 10, the situation doesn’t exceed the annoyance level — not much worse than having to shovel the snow out of the driveway for the fiftieth time this winter.
It’s going to be alarmingly deep. Those fun photos of people rowing boats in the Piazza San Marco don’t ever show how deep the water actually is. (In fact, those boats can be rowed in four inches of water.) Venice isn’t flat as a griddle — the streets undulate as much as the water does, which you discover when the water comes ashore. There can be dry spots even in a wet street.
The entire city’s drowning. The municipal tide center reports that when the tide is predicted to reach 110 cm above mean sea level, 14 percent of Venice has water on the ground. And that that might not be a depth of more than an inch or two. Fourteen percent doesn’t strike me as an immense area, and several percentages of that would always be the Piazza San Marco, the lowest point in the city.
When the water starts to rise in the Piazza San Marco, it looks like this. Sometimes it doesn't get any higher than this amount. I guess you could say Venice was flooding, but there are still plenty of dry spots left.
It’s going to hurt you, or hurt something. Not that I’ve noticed. Acqua alta is nothing like real floods. Rivers overflowing their banks in torrential rainstorms are dangerous; tsunamis are dangerous. With acqua alta, nobody dies. People survive, buildings survive, art works are fine. The water rises very gently, even politely. Despite the distraught tones in which the event is almost always reported, I still don’t understand why the mere term seems to have acquired such a menacing overtone.
If the water rises near a low sidewalk, it flows over the edge. It's even more common -- as here in the Piazza San Marco -- for it to come up through the storm drains. Naturally it also goes out the same way.
Acqua alta is not dangerous. It’s not even especially upsetting. In my experience, if it happens more than a few times, though, it can begin to seem like a two-year-old who’s gotten into the “Why?” groove. Nothing wrong with it, really, except that it gets to be irritating. The kid turns three, and spring and summer come, and all of this fades from memory.
In my next post: A few real-life aspects of acqua alta which tend to mitigate its fearsome reputation.
True, this was not one of our most amusing moments. And it didn't stop there, nor did our impressive barrier do much good to keep it out. But this has happened only once (for about two hours) in the six years we've lived here.
If you were looking for a new apartment and saw this, you might think twice. The barrier you could kind of accept, but a pump as well? Not good.
