Green Group discussion
Climate Change
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Flooding
Florida Keys Deliver a Hard Message: As Seas Rise, Some Places Can’t Be Savedhttps://www.nytimes.com/2019/12/04/cl...
I think this is quite interesting: It gives a clear message to the big middle group: People who believe in climate change but don’t really care, thinking that we will just build something to fix the damage.
It shows that it is too expensive to repair the damage. Yes, I know, it is obvious, but some people don’t understand it has to do with them or other real people and not just some “random bird”.
Also a lovely comment:
"I don't understand why they can't just sell their properties to climate change denialists. If you believe climate change isn't happening, you could get a good deal on all of this property."
The Insurance industry will enlighten them at some point. No Insurance no bank loan it's a reality climate impacts the economy and no amount of spin is going to change that.
Due to uncertainty in the real estate industry and insurance industry the future value of coastal land could be anything from sky high to dirt cheap. It is slowly becoming whatever it can be sold for and not based on the last highest sale price. Whatever the final value, insurance, and reinforcing the shoreline would be expensive. Buildings could range from ultra expensive to easily replaceable disposable structures. People will always want to own coastal property.
Another option is to require a building requirement that any buildings on the shore be set back a certain distance. As existing buildings required replacement they would be set farther back. If there wasn't enough property to build farther away from the shore, the land would be rezoned as unbuildable.
In some coastal places the land values are still going up faster than property farther inland, while in other locations sellers are lowering their prices because of buyers concern about potential storm and tide damage.
As the cost of maintaining coastal properties increases it could change ownership of coastal regions over to the very wealthy or change it to public property.
People use to joke about selling city owned property in New York City to unsuspecting buyers who wouldn't know anything amiss until they were told to take down the toll booth they had just put up on a city bridge. Perhaps the entire shoreline could turn into a bridge to nowhere.
Real estate agent, "We can overcome any kind of rising seas if you just let us protect our properties," Saab said. "Who cares about the climate change? You build a seawall and this whole discussion goes away."
Sea walls stop water in the water, they don't stop the wind, heavy downpours, flooding from inland, or storm surges that go way over the top. And so some day the house goes away as well.
https://www.wbur.org/bostonomix/2019/...
....not to mention the acidification of the oceans, extinction of coral reefs and quarter billion Indian refuges fleing from the heat and lack of water.
Since October, there has been a great amount of excessive rainfall and flooding across Africa, effecting 2.8 million people so far. While Victoria falls is drying up, more rain is on the way in other parts of Africa. The average yearly rainfall in Djibouti is 6.3 inches. In November they got 5.5 inches of rain in 2 days, which is almost 12 months worth of rain.
While the rainfall numbers seem small, 250,000 people were displaced with 9 people reported killed. There will be more of these excessive by old standards rainfall events and they will happen in places that get considerably more rain than 6 inches a year.
There is a possibility that some of the rainfalls, both excessive and normal, will move off shore, with the rain falling in the ocean. While there will be overall increased rainfall around the globe, droughts could become more wide spread as the rain never falls on the land.
http://floodlist.com/africa/easy-afri...
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https://www.independent.ie/world-news...
" The brackish water is absorbed by the marble columns or cladding and into the brick structure, creeping higher and higher up the basilica walls and supporting columns.
As the water dries, the granules of salt expand to create multiple tiny explosions inside the stone, brick and marble that weaken their structure.
“Even at a height of 12 metres (nearly 40ft), we have salt that comes out, that crystallises,” Mr Maneschi said. "
" Damage can be seen on the bottom of a column of precious Aquitaine marble in the narthex.
The capitals are carved with images of lions and eagles, indicating they are of imperial origin and not religious, and therefore believed to have been sacked from Constantinople during the fourth Crusade, Mr Maneschi said.
Analysis only this year indicates that the capitals were made even more ornate by gold leaf covering and lapis lazuli inserts – which have long disappeared.
The base of one of the decorative columns is badly corroded.
But the dark Aquitaine marble prized by ancient civilisations can no longer be found. "
I talked to someone who visited Venice earlier in the year. There was nothing going on with the weather, no flooding, but the area the table they were sitting at was in, had ankle deep water which everyone just ignored.
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Yeah, that too. The lady didn't care at all, but the salt water wicks up into the building walls and the salt corrosion can get as high as the top of the first floor. They are going to have to do something.
Inquiry ordered into insufficient insurance for flood-hit homes --- Environmental impacts that interact with legislation are no longer able to hide shortcomings under the cover of time.
The article also states that a lot of the work done to help people is done by charities and volunteers. In the past the responses have been to randomly occurring events. The first problem is that the "random events" are happening so often, that the nature of the event can be considered random but the frequency of the "random events" are running like clockwork.
Feeding and clothing people is something that can be done on a regular reoccurring basis. But supplying durable shelter, new homes, rebuilding infrastructure can not be done by these organizations. Any attempt to do this on a regular large scale basis would result in the immediate depletion of funds and manpower.
https://www.theguardian.com/environme...
Jakarta, Indonesia has flooded again. The waters have impacted people and businesses. The flooding is the worst seen since 2013, when it became apparent that the Jakarta would not survive in its present location. Unregulated pumping of ground water, rising ocean levels and packing 30 million people and their endeavors onto unstable land has resulted in the land sinking.The airport is closed because the fields are under water. Train and other transport systems are stalled until the waters recede. 120,000 rescue workers have been mobilized, tasked with doing everything needed, from setting up water pumps, kitchens, portable bathrooms, plus rescuing people. All government buildings and schools not effected by the flooding are considered available as temporary shelter for people.
Unlike Venice, Indonesia has been contemplating moving the government and primary businesses in the capital from the present, sinking location to the island of Borneo, known for rain forests and orangutans, all of which would disappear. The population of Jakarta is 10 million, with another 20 million people in the immediate surrounding area. While plans don't include moving everything and everyone, why would people stay who didn't have. People go to where the money is. The outlook for the millions who don't move has not been taken into account, but the prospects of it turning into a shadow capital with it's own brands of economic and political opportunities and justice systems should not be overlooked.
https://www.upi.com/Top_News/World-Ne...
"As Climate Risks Worsen, U.S. Flood Buyouts Fail to Meet the Need"A wave of citizen refugees is starting to appear as people's homes are threatened by flooding and also situations like melting permafrost where communities slowly sink into the mud. Some of these people just can't stay in their present locations as the physical and mental tolls go untreated and the need for any kind of help is up for endless debate or just subject to no actions taken as the money never materializes.
Realization that any areas that are already flood prone are going to get a lot harder to live in is also generating a huge price tag if people stay or if they don't stay and get bought out by a system that needs overhauling if it is going to head off situations before they become disasters. It is estimated that in the US 20 million people or more will need to be relocated in the next 100 years from areas that will be uninhabitable by flooding along the shores or inland wherever it happens.
https://e360.yale.edu/features/as-cli...
Melting permafrost is creating a slow motion flood of water and mud and silt, that shows no sign of ending anytime soon. And help for people caught up in the mud is not on the way. Up to 40 percent of the world's permafrost, 2.5 million square miles, over the next 100 years could melt. I would say the time line is way too generous on the long side. We can't even see what is happening underground.
The permafrost regions in the northern hemisphere are for all intents and purposes, extensions of the frozen polar ice caps. The permafrost goes far south of the North Pole through North America and Siberia. The permafrost ground is cracking like the glaciers are, and the deformations of the formerly frozen ground are draining lakes and ponds and any other surface water into the permafrost, accelerating the melting of the permafrost.
"The rapid thawing of permafrost has enormous implications for climate change. There are an estimated 1,400 gigatons of carbon frozen in permafrost, making the Arctic one of the largest carbon sinks in the world. That’s about four times more than humans have emitted since the Industrial Revolution, and nearly twice as much as is currently contained in the atmosphere."
From the volume of green house gases involved, its beginning to look like our plans of limiting our emissions over time will be next to useless. The only long term plan we have right now is to hope that the melting of the ice and ground takes a whole lot longer than predicted, otherwise all our cutbacks will be negated by carbon that was locked up thousands of years ago.
https://e360.yale.edu/features/how-me...
The effects of the old bacteria and viruses is up for debate. Scientists have been trying to revive the 1918 flu virus but no luck so far. The anthrax has always been coming up through the ground anywhere in the world. Animals die, maybe a person or two but nothing to panic about. We will just have to wait for things so old we never saw them before, to appear once again in our world to see what is going to happen.
This article gives a good rundown of what is being done, but it also shows how bacteria from dead seals frozen in permafrost can be transferred to people with very bad results if left untreated. So far it is too early to tell, which also means we are relying on nothing being found now as proof that nothing will be found later. That is a possibility, but not the only possibility. Its called gambling, and the house eventually wins.
https://e360.yale.edu/features/how-me...
We could use a lot more books like New York 2140. The changing climate provides endless opportunities to create stories that can educate as well as entertain people in a useful way. That is one of the purposes of science fiction that is often overlooked by writers who are trying to find exotic settings for their stories and end up writing stories that change nothing.
Clare wrote: "Relevant book which I'm reading at this minute:New York 2140"
High on my to-read list.
There is also The Drowned World. It is not man-made warming, but features a lot of water.
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Flooding two weekends in a row means disaster for homes and shops.
This lookaround from RTE in Ireland includes a clip of the Devil's Chimney; this is a waterfall in Sligo which we can see being blown back up over the cliff by the winds.
https://www.rte.ie/news/ireland/2020/...
Looks like there might be more rain coming across the ocean.
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https://www.jpl.nasa.gov/news/news.ph...
NASA is starting a new study of Louisiana.
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"A month's worth of rain in 24 hours could also hit north Wales and north-west England, forecasters said, falling on ground that is already saturated.
Nearly 120 flood warnings remain in place across the country.
And there is also travel disruption after floods blocked a major rail route between England and Scotland."
https://www.bbc.com/news/uk-51567635
We have been watching this on TV. Farmland under water, homes under water, roads etc. Some towns have demountable defences along river banks to protect the streets. So far where they are in place, they work, but the water is pushed downstream.
Fortress Charleston: Will Walling Off the City Hold Back the Waters? The plan cost 2 billion dollars and has nothing to do with changing what has been done.https://e360.yale.edu/features/fortre...
"Charleston officials are preparing to rewrite the city’s master plan to deal with chronic flooding all across the 112-square-mile city and may end a controversial practice allowing developers to “fill and build” on old creek beds." That sums it up, the old creek beds used to be devoid of buildings because people knew you couldn't build lasting structures in them. Now that the loss caused by the development of every square inch of land can exceed the loss by not building on every square inch of land, the laws are being changed. Laws that over rode common sense. As for people living in areas that should have been left untouched, the weather will soon be providing the answers for what happens next.
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https://www.ecowatch.com/michigan-flo...
Reuters gives the bare facts.
https://www.reuters.com/article/us-us...
The flooding severely impacted 2 dams that had been flagged as probably not able to take a sustained rainfall event. The current spillways needed to be replaced with larger spillways. The dams are earthen dams which are probably hard to modify. The flooding is impacting the Dow chemical company's corporate headquarters where they also produce plastics for making plastic products. The report I read said that they had areas to hold the extra water. It sounded like that was only a temporary situation and that the holding pools would become flooded. Dow says there is only water in the holding pools. The factories are another story. The damage to the Dow plastic making factories will also have to be checked out after the waters recede.
There is also a superfund site that is apparently just sitting out there in the open, that apparently was flooded. Down river for around 50 miles was previously polluted by the operation of the plant over the years. One common way to fix that kind of situation is by letting new clean sediment cover the old polluted sediment. Many rivers have been fixed that way. Which isn't really fixing anything.
The damage to the site and release of substances, such as dioxin, can not be determined until the waters recede. With the higher rainfall rates that can happen anywhere, it is not enough to rope off superfund sites and just bury them anymore.
Since Bush, the number of superfund cleanups have diminished steadily. This trend also continued through the Obama administration. The Trump administration is cutting the superfund funding by 30 percent. In the 1990s, the superfund was funded by a tax on plastic and petroleum products. Congress let the law lapse (make the polluter pay law). Since early 2000s, the superfund has been mostly funded by taxpayers which accounts for the diminishing work due to lack of funding.
https://www.chicagotribune.com/midwes...
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You may say for a dam built in 1924 it held up great. But when it bursts, you see it really wasn't anything but an earth bank.
And apparently America has lots of them, revealed in a film called Dam Nation.
https://earther.gizmodo.com/michigan-...
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Gizmodo has a look at the weather and what will happen given the hurricane season hasn't even started yet and the storms are arriving.
Stay safe everyone.
https://earther.gizmodo.com/bertha-is...
Dam NationThat says so many things. Damn Nation, damned nation. Damnation.
People want to remove the old dams to let the rivers run free. Some have hydroelectric power generation but most are probably just left over ideas that have expired. It appears that if we don't take the old dams down, the new storm patterns will take them down for us.
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I would have thought there aren't any water wheels or turbines running off of a straight river flow for a long time now. That was true until about 10 years ago. New water wheel designs are having a revival because they don't need dams, don't have to interfere with migrations or spawning. Plus, the small units, less than 5KW are easy to install. Called pico class water wheels, they can provide electric power for rural, decentralized and undeveloped areas quite easily without disturbing the ecology of the river or stream they are in.Large for installed power over 10 MW
Small for installed power under 10 MW
Mini for installed power under 1 MW
Micro for installed power under 100 kW
Even though the original water wheels 400 years ago were quite simple in design, the changes made to the rivers and streams and the wheels themselves to continually increase efficiency of power generation cut down salmon migrations in north western Europe by 90%.
A simple water wheel that has no impact on wild life or stream ecology is operating at around 40%. By changing the river flow and harsher blade designs, the efficiency can be raised to 60%. A well designed hydro plant with a restructured stream bed, weirs to increase water flow can have an efficiency of 90%.
Even developed countries can use them, Europe has around 35,000 sites where micro size (less than 100KW) hydro plants featuring water wheels could be safely installed. They represent a back to basics form of alternative power that has been greatly updated with the use of computers and detailed engineering studies to squeeze the maximum power out of them.
https://www.sciencedirect.com/science...
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"Importantly, these plumes also influence the production of tropical storms and hurricanes. Normally, the atmosphere around a mile up is quite moist, but these sands are accompanied by dry desert air, creating an environment in which it is difficult for storms to form and strengthen.
The 2020 Atlantic hurricane season has already produced three named storms—tropical storms Arthur, Bertha, and Cristobal—but all this dust could stall things for a while. But dust now is not necessarily a sign of things to come. A dusty start to the 2018 Atlantic hurricane season, for example, was followed by unusual intensity, including damaging hurricanes Florence and Michael. With the peak of hurricane season still months out, there’s still unfortunately time to clear the air."
https://earther.gizmodo.com/satellite...
NASA's 2007 post on the topic.
https://earthdata.nasa.gov/learn/sens...
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Today, the south of China is badly affected.
This threatens the Three Gorges Dam which also appears to be deforming. A German team of inspectors found the work was not up to standard during construction, but the Chinese say otherwise. The Chinese also claim that the apparent deforming of the dam is a problem with the satellite photos, not the dam.
The dam has been releasing water through spillways but over just a few days, the water on the downhill side of them has been getting a lot higher.
Here is a YouTube video just over two minutes long. Worth a look.
https://www.youtube.com/watch?reload=...
And The Guardian article which tells us dozens of people have been killed and hundreds of thousands displaced.
https://www.theguardian.com/world/202...
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https://www.youtube.com/watch?v=n6Qyf...
According to the film, Chinese state media originally said the dam would withhold up to a 10,000 year flood. After a few years that was changed to a 1,000 year flood.
Then it was changed again to a 100 year flood.
Now the authorities say people must not put all their dependence on the dam to retain flooding.
During June 2020 the water hit two metres above the warning level.
Not alone are cities in the downstream path, but the dam generates HEP.
This is another film about corruption during the lengthy construction process.
The firm building the dam did not have a separate oversight by a quality control and work standards firm or agency. They did it themselves.
https://www.youtube.com/watch?v=xJn35...
As the Yangtse river originates in Tibet I am thinking all the dams on its length are being affected by climate change.
Their own downgrade from 10,000 to 1,000 to 100, which now means nothing by today's standards, as that can now happen any time, doesn't look good.
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https://www.rte.ie/news/world/2020/07...
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"With the China Meteorological Administration (CMA) on Thursday (July 2) issuing a heavy rain warning across China for the 31st straight day, netizens continue to speculate about the integrity of the Three Gorges Dam as it faces its greatest test since completion in 2003. Although Chinese officials have repeatedly labeled fears the dam could suffer a catastrophic collapse as "nonsense," the region continues to be battered by heavy flooding, landslides, and on Thursday an earthquake.
At 4:07 a.m. on Thursday, a magnitude 3.2 earthquake rattled Zoige County in Sichuan Province at a shallow depth of 8 kilometers, according to the China Earthquake Networks Center. Though an extremely shallow earthquake with a focal depth of 8 km, it raised concerns that landslides could threaten the safety of the dam.
At noon the same day, the Changjiang Water Resources Commission (CWRC) issued an urgent warning that the upper reaches of the Yangtze River would witness the "Yangtze River's No. 1 flood of 2020" (長江2020年第1號洪水). By 10 a.m., that day, the CWRC reported that the inflow of water to the Three Gorges Reservoir would be 50,000 cubic meters per second, matching the rate seen in the 1998 floods."
https://www.taiwannews.com.tw/en/news...
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"On June 26, a Chinese seismologist who goes by the YouTube handle Feng Tian Lao Wang (奉天老王) predicted that the ongoing flooding in the Yangtze River Basin would peak on July 2 and that an earthquake would also take place that day, exacerbating the situation involving the Three Gorges Dam. He predicted that a "catastrophe" would strike the river basin on that day and advised residents in the area to make preparations in advance.
The China Meteorological Administration (CMA) on July 2 issued a heavy rain warning across China for the 31st straight day, and as the seismologist had predicted, an earthquake struck the region that day. At 4:07 a.m., a magnitude 3.2 earthquake rattled Zoige County in Sichuan Province at a shallow depth of 8 kilometers, according to the China Earthquake Networks Center."
...
"After speaking with Feng Tian, a Chinese YouTuber, who is a critic of the Chinese Communist Party (CCP) and goes by the handle Li Yiping (李一平), on Tuesday (June 30) said that the floods this year are on pace to surpass those seen in 1998 and predicted that if an earthquake occurs at the upper reaches of the Yangtze River, it could cause one of the smaller dams to collapse.
He warned that if this were to occur, it could lead to a domino effect, with one dam failing after another until finally, the Three Gorges Dam itself would be under such a tremendous amount of strain from the resulting catastrophic floodwaters that it too would collapse. Li also pointed out that the Three Gorges Dam sits on two major fault lines, the Jiuwanxi and Zigui-Badong, and that massive changes in water pressure in the dam's reservoir due to flooding could lead to earthquakes, a phenomenon known as reservoir-induced seismicity, which in turn would lead to landslides that would at the very least exacerbate the flooding in the area and potentially threaten the integrity of the main dam."
https://www.taiwannews.com.tw/en/news...
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"Since June, more than 10 million people in 26 provinces have been affected by torrential rain, with many cities above and below the Three Gorges Dam submerged by floodwaters, calling into question the effectiveness and stability of the massive facility. Fenghuang Ancient Town (鳳凰古城), which dates back to the Spring and Autumn Period (770–476 BC) and sits on a tributary of the Yangtze River in Hunan Province, has suffered extensive flooding in recent days.
Xinhua reported that there had recently been heavy rainfall on the Wujiang, Minjiang, and Tuojiang rivers at the upper reaches of the Yangtze River. Staring on Monday (June 29), the banks of the Tuojiang River started to become submerged by roaring floodwaters.
Videos posted online Tuesday (June 30) by residents of the town show torrents of silt-laden water tear through the streets of the town, with people wading up to their shoulders in water and at least 20 trapped at one point. In more modern parts of the town, vehicles and pedestrians can be seen struggling to navigate through swirling pools of brown water."
https://www.taiwannews.com.tw/en/news...
The mountains that more or less run the length of Japan, scoop the water out of the clouds and then send it downhill to the shores eventually. As the amount of water caught by the mountains increases, the eventual run off that runs downhill also increases causing more landslides and floods than in the past.
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"Japan's Meteorological Agency (JMA) issued its second-highest emergency warning for heavy rain and landslides over vast swathes of the country's southwest and said "risks are rising" nationwide.
At least 50 deaths have been confirmed in the rains that began early Saturday, top government spokesman Yoshihide Suga said, but the toll is expected to rise, with two more feared dead and over a dozen reported missing.
"We are racing against time," Yutaro Hamasaki, an official in the hardest-hit region of Kumamoto, told AFP....
"Emergency services in western Japan are "racing against time" to rescue people stranded by devastating floods and landslides that have killed at least 50 people, with more torrential rain forecast...
"Japan is in the middle of its annual rainy season, which frequently unleashes deadly floods and landslides. Climate change has intensified the risks, because a warmer atmosphere holds more water, including rainfall.
In 2018, more than 200 people died in devastating floods in the same region of Japan."
https://www.rte.ie/news/2020/0707/115...
At the top is a photo of a road undermined by a landslide. Further down are some absolutely tragic details so you may not want to read all the story.
As you said, Robert, Japan is a string of mountainous islands, so the people have to live quite close together. Now they have the added threat of spreading the coronavirus during evacuations.
The corona situation is nowhere finished. Being alive, it just needs the tiniest foothold to restart all over again. People in the US where it has already peaked want to believe that it isn't coming back, but the increasing numbers could be pointing to a resurgence just because it is everywhere else and could start backfilling areas with lower incidences of it. Flooding jams people together in large crowds in shelters that are never big enough. Simple events, small or large, where people did not observe the rules have resulted in flashes of one or two dozen people becoming infected. It is hard to rescue people while observing social distancing.
We have had 3 named storms in quick succession, then a period of quietness, in which people forget that we are in hurricane season. So many other things in the news. But now another low pressure disturbance of substantial size has formed and is rolling up the Atlantic coast. Maybe not organized enough to get a name, but any large rain storm is not good news for somewhere along its path, with flooding and shelters, and corona lurking in the shadows.
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https://www.rte.ie/news/world/2020/07...
While the houses look devastated, remember that they are mostly wooden houses due to earthquake zones.
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https://weather.com/photos/news/2020-...
With news of flooding and 10 million people affected.
North Korea has had to close its border with China due to coronavirus. So they presumably are getting rained on too, and getting flooded to some degree. The closed border will stop them getting food and supplies into the country, and flooding will stop them distributing what they have or dispatching help to stricken towns.
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Heavy rainfall forced sand into the Han River in Hubei Province, kicking up the brownish color. According to CGTN, the photos show two different rivers meeting — the muddy Yangtze River and the clearer Han River. The photos show a distinct barrier between the two rivers, as if they meet but don't mix.
The Han River, also known as Han Jiang, is the Yangtze River's longest tributary."
https://weather.com/photos/news/2020-...
Stunning photos. Probably stills from a drone flight.
And when you see the sky in one shot, look at the clouds weighty with rain.
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"Tropical Storm Fay is sweeping across New England, with the center of the storm making landfall about 10 miles (15 kilometers) north-northeast of Atlantic City, New Jersey, at around 5 p.m. local time. At that time, Fay had maximum sustained winds of around 50 mph (85 kph). Forecasters predicted the storm will dump up to 7 inches (18 centimeters) of rain along its path from Delaware into New Jersey."
https://www.jpl.nasa.gov/news/news.ph...
The storm started on land, which is unusual only because it wasn't what we are accustomed to seeing. What was true yesterday doesn't have to be true today. It hugged the coast before coming ashore. NYC has pumping brigades that pump out water where it gets backed up because once it gets out of an underground routing system all it can do is pour into unprotected infrastructure. The pumping brigades are just like the fire trucks that put out fires except they pump up water instead of pumping out water during an emergency situation.
Because of it's formation, the eye was defined but not your typical eye so the heavy rain bands fed by the ocean seemed completely random at times and stretched as far north as Massachusetts. We got needed rain, which was moderate at times, very spaced out so no flooding, unlike the situation farther south. The winds were not bad either unlike farther south.
3 subway stations in NYC had minor flooding because of clogged street drains or drains that weren't functioning properly. None of the stations closed but the waterfalls were reminiscent of past water leaks which had caused damage to the station walls and ceiling or almost washed a person onto the tracks at one location. No injuries were reported and prompt responses were made because the MTA knows where all the leaks are by now and has people and high speed equipment stationed nearby to take care of a problem as soon as it happens.
The city has an elaborate pumping and drainage system which can easily fall victim to street debris getting swept up by water filled streets and clogging up escape routes for the water. Once that happens the water quickly backs up and overflows into unprotected areas which are anywhere there is no underground drainage system to catch the runaway water streams. It then pops out of the ceiling and walls at underground locations, including the subway stations.
Because the rain bands were scattered around and short lived the flooding wasn't as bad as it could have been. The fast appearance and wide distribution of flooding waters showed that with a major storm, the area is going to flood out faster than it can be pumped out. As time goes on and the storms get more rain in them perhaps pump trucks will be needed at every major intersection.
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I'm glad your area got needed rain with no strong winds. For the storm to start on land, though, means a tremendous amount of heat, also that there were no strong upper atmosphere streams, which allowed a major low pressure area to form and hold.
NYC - I didn't know the details, they must have learned from experience how to maintain such a concrete city. I would suggest creating more green as in soft green, roofs and soft green spaces between buildings, to break up the SUDS effect. Pumping water out from underground hard spaces is still making it available to other hard spaces. Whereas a soft space would soak it up and the plants would drink and store water.
We tend to imagine Manhattan but I am sure this applies to the other areas of the widely spread city too. They will have underground car parking and office basements.
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We are used to seeing a flood as water covering the land and washing away things that aren't well enough attached to the land. In the polar regions, the land under the glaciers is also being flooded by water. When the water reaches the ground under the glacier, the water is under a lot of pressure and does damage that is hard to see. Even though we can't see the rising waters, it is still a flood.
In July 2018, a team of scientists in Greenland used a drone to record before and after pictures as two thirds of the lakes on the glacier surface in the area they were in, drained through a fracture in the ice, causing 5 million liters of water to end up under the glacier. As a lubricant it sped up the glacier's march toward the ocean from 2 meters a a day to 5 meters a day. It also lifted the 1,000 meter tall glacier up off the ground 1 and a half meters. The amount of force required to lift all that weight 1 and a half meters shows how strong the force of the water is that is flooding the bottom of the glacier. They got the measurements from GPS measurements. The article did not mention how long the ice stayed elevated or how long the increased speed lasted. Information I would have liked to see included in the article.
https://www.yahoo.com/news/drones-sho...