Monday, September 24, 2012

An Earthquake Made the River Rise

When I think of earthquakes and rivers, I imagine the scene in the Superman movie where Lex Luthor’s bomb sets off an earthquake and ruptures Hoover Dam.

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Dambreak scene from the 1978 Superman Movie.

Natural disasters can cause problems with the cracking of structures, but earthquake-induced total failures of dams are relatively rare. That said, there are accounts of earthquakes happening after the construction of dams. Large lakes filling put new stresses on the landscape until conditions reach a breaking point. The filling of Lake Mead/Hoover Dam caused earthquakes. As you can imagine, there are karmic cases of large dams causing large quakes that damage the dams themselves (e.g. Hsinfengkiang in China in 1962, and at Koyna, in India in 1967).

More interesting are the effects that earthquakes have on the natural flow of rivers, some of which can be long lasting. About 10 years ago, scientists Montgomery and Manga collected examples of earthquakes changing the water levels in wells and rivers. They found “Detectable streamflow changes occur in areas within tens to hundreds of kilometers of the epicenter, whereas changes in groundwater levels in wells can occur hundreds to thousands of kilometers from earthquake epicenters.” Manga also helped write a book chapter on changes in rivers after earthquakes and highlighted the case of a 1989 California earthquake that made rivers come up from 4 to 24 times their original size for a period lasting weeks to months.

In 2010 the colossal magnitude 8.8 earthquake happened in Chile. According to studies published this summer, initially the river levels dropped but then, hours to days later, the rivers as much as quadrupled their original size. The shaking of the soils redistributed the groundwater up towards the surface and fairly soon plants started accessing this water for transpiration causing a larger fluctuation in the river between night and day.

There are also short-lasting (i.e. minutes to hours) dramatic changes in river flow. In 1812, the Mississippi River ran backwards following a magnitude 7 quake in 1812. Boatmen were jolted awake in the middle of the night to find themselves being washed upstream “at the speed of the swiftest horse” and having to hold onto their hats to keep them from flying off. There were accounts of sudden large holes opening in mid-river as much as 10 meters/33 feet deep with water spilling vertically into them.

Saturday, September 22, 2012

Heat Hunting in Australia (My Hottest Day)

The announcement about the fall of Libya’s hottest temperature record got me remembering about some adventure climatology I did a few years ago in Australia. I wanted to find the exact hottest spot in the city on the hottest day of the year. Can you guess where it was and how hot it was? Here are some excerpts from 2 events. First, infamous Black Saturday (7 February 2009). At the time, few realized the extent of the wildfires going on around Melbourne but we could see plumes of smoke from our apartment and had ash on our windows:

“Today was quite a day. Melbourne finally broke the all-time all-year maximum temperature record, 115.5 F/46.4 C. 

At the height of the heat at about 3:40pm I grabbed my personal thermometer and ran outside to see if I could find the hottest surface temperature (the "skin" temperature, the surface of the ground as opposed to the air temperature a couple feet off the ground which is what you see above) around our neighborhood.

In grad school in Arizona we would run out and see if we could fry an egg on the sidewalk on the hottest day of the year. Turns out you can't. Sidewalks aren't that hot, you need something like an motor oil stained manhole cover or the metal hood of a black car. Even then the best you can get is over-easy, a little less than totally runny. 

There's so many clichés about heat... But they were all true, when I walked out into the 5% humidity and 50 km/hr winds, it was like being blasted in the face by a pizza oven wrapped in a sauna nestled in a box of hair dryers... on a tin roof... in Hades... with the heat on. Anyhow my thermometer is made to measure liquids so it wasn't quite designed for the task, but here's the best I could do today...

145.5 F/63 C. Hot damn! It was right outside our door actually, in front of a construction site, it's a large thick metal slab out in the street and the hottest temperatures were right in the middle. Later on I started to think I could do even better on some of the tram tracks going down the middle of Toorak Street... but then a confused policeman came along and rousted me.

Later on we had blackouts in our apartment. And Christine remarked that this might be the first time she hasn't felt cold. But the heat was over in 10 minutes, as you can see when the winds and my first showers came through.”

Then there was this event from 11 January 2010:

Today looked like it was going to be a scorcher, so this morning I called in sick with a terrible "cold". Right around 4:30 when it appeared like the airport temperature had reached its peak (110 F, 43C), I donned my cashmere wool overcoat and hat and set out.

First stop was the tram rails at Chapel and Toorak. In theory, a great spot, but I think I'm going to give up on this one. I only had the thermometer down for half a minute before the cars at the stoplight started to honk.

Where the construction site was last year, there's a skyscraper now. On the first floor is the Outpost Cafe, a high end coffee place that has a fancy contraption that makes a cup of coffee, one drip at a time over about 4 hours.

Those black metal plates below the windows were just about perfect and they had been facing the sun all day. As I got closer I saw that a couple flies had foolishly landed on the wall and were burnt to a crisp on the spot!

And the verdict is...

165 F/ 74 C, blowing away my record last year by over 11 degrees C! In theory, that really is hot enough to cook an egg (>158 F, 70 C).

Friday, September 21, 2012

Dead Heat: The Toppling of the World’s Hottest Temperature Record

Last week forecaster Jan Null sent out an announcement about how Death Valley has moved up into the top spot of (officially recorded) hottest place on earth:

The World Meteorological Organization (WMO) has stripped Libya of their world hottest temperature record; set at El Azizia on September 13, 1922. The “new” world record hottest temperature is now the 134 set at Greenland Ranch in Death Valley, CA on July 13, 1913. Here’s the Press Release. It was the tireless efforts of Chris Burt, author of Extreme Weather and the Weather Historian for Weather Underground, that helped spur the [World Meteorological Organization] to reexamine and ultimately delete the El Azizia record.

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A photograph of the trading post at El Azizia, Libya taken in 1923

The old record fell because it was on old-style thermometer (even by 1922 standards) and was likely misread by a new observer on his second day at work. It was a hot day, but the record did not seem plausible when compared to other nearby stations reporting at the same time.

Chris Burt has an interesting blog with personal accounts and original investigation into this and other weather extremes. The blog includes a compelling 25 minute detective story documentary about the El Azizia record with dramatic accounts of the disappearance of the Libyan chief climatologist during last year’s revolution. There are also announcements in USA Today and Reuters.

Note that this record is for the hottest official air temperature recorded by a thermometer. There are measurements of the exact hottest place on earth (70 C/160 F surface temperature in the Lut Desert outside Kerman, Iran) but that is of the temperature of the ground as sensed by a satellite. Read more about my trip to that Iranian desert and its vast hand-dug underground canals.

Monday, September 17, 2012

Forecasts At the Airport (a Case Against Knowing Uncertainty)

The departure board at London Gatwick airport currently lists all flights as being on time. Some of these are probably lies, and knowing lies at that. 

When planes are delayed or cancelled, the passengers are only let in on this once there is virtual certainty that the flight will be off schedule. Even then, the passengers are updated through a slow creep in the numbers. First, a delay of five minutes is announced, then twenty and then…

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When compared to what actually happens, these “predictions” are clearly biased. The forecasts are always too optimistic. Planes never leave earlier than the advertised times.

Someone in the airport (e.g. in the flight control tower) has unbiased information about when the planes will likely take off but there is a good reason to not give that data directly to the public.

Imagine a parallel universe without bias on the departure board, where half the planes leave early and half leave late. Passengers would check the board and perhaps some would decide they have enough time to get another coffee. It would be clearly upsetting to come back “on time” and discover the plane already left. People also get very mad when buses or trains run ahead of schedule.

A recent NYT article “The Weatherman Is Not a Moron” described the river-forecasting equivalent of such a catastrophic “missed the flight” scenario:

The Weather Service has struggled over the years with how much to let the public in on what it doesn’t exactly know. In April 1997, Grand Forks, N.D., was threatened by the flooding Red River … [The Weather Service] predicted that the Red would crest to 49 feet, close to the record…The waters, in fact, crested to 54 feet. It was well within the forecast’s margin of error, but enough to overcome the levees and spill more than two miles into the city… The Weather Service had explicitly avoided communicating the uncertainty in its forecast to the public, emphasizing only the 49-foot prediction. The forecasters later told researchers that they were afraid the public might lose confidence in the forecast if they had conveyed any uncertainty.

Times have changed….  

Since [the Grand Forks flood], the National Weather Service has come to recognize the importance of communicating the uncertainty in its forecasts as completely as possible… “No forecast is complete without some description of that uncertainty.” [said Max Mayfield] 

Still, just like how there are biases in flight departure times, there are biases in the weather forecasts:

In what may be the worst-kept secret in the business, numerous commercial weather forecasts are also biased toward forecasting more precipitation than will actually occur… For years, when the Weather Channel said there was a 20 percent chance of rain, it actually rained only about 5 percent of the time.

People don’t mind when a forecaster predicts rain and it turns out to be a nice day. But if it rains when it isn’t supposed to, they curse the weatherman for ruining their picnic. “If the forecast was objective, if it has zero bias in precipitation,” Bruce Rose, a former vice president for the Weather Channel, said, “we’d probably be in trouble.”

In flood forecasting, there seems to be a tolerance for false alarms. Occasionally crying wolf is not bad compared to letting the wolf in to make a big mess of everything (even if only once).

However, whose responsibility is it to make sure the wolf stays out? It is the airport’s responsibility to give good information to the passengers. It is the passenger’s responsibility to be at the gate on time. Similarly, the forecaster is not responsible for the flood damages, but he has a duty to provide good information to decision makers and the public. But don’t people with more information make better decisions? Is it fair to restrict what the public knows? Do more people catch their flights because they don’t know the whole story of what could happen?  

Max Mayfield said in the NYT article that “No forecast is complete without some description of… uncertainty.” Scientists (myself included) are falling over themselves to come up with new and better ways of quantifying forecast uncertainty; this is one of today’s most active research topics in hydrology (and meteorology and climate change). There are stacks of reports going back more than thirty years saying that forecasts that communicate uncertainty have more value than forecasts that only give one number (the river will reach 52 feet).

Some of the more informative alternatives include a credible range (there is a 90% chance that the river will reach between 48 and 55 feet) or the chance of a relevant threshold (there is a 35% chance of the river going above the levees) or an ensemble (any of the following scenarios could happen: 48 feet, 49 feet, 51 feet, 54 feet…).

Imagine the confusion and frustration if the airport departure board listed ensembles:

London to Paris, possible departure times include 8:30, 8:32, 8:37, 8:40, 8:55.

It may be entirely true that there is a “90% chance this flight will leave between 8:30 and 8:45” but is this enough information to help the user make a decision? Although ensemble forecasts are technically feasible, river forecasters often feel like they are shirking their duties by asking users to wade through a mass of possible scenarios. Yet, scientists bristle at the idea of giving users only one number. “You can’t pick one number, because that depends on the risk tolerance of the user and every user is different.” What is a conservative forecast for one user is risky for another.

For example, my return flight to London has a tight connection. The board of departures says “what is the earliest possible time that the planes could leave?” I could plan better if I knew the latest possible time the flight could leave (or, say, the chances of being delayed by more than 15 minutes). I could decide for myself if that was an acceptable risk. I resent not knowing.

But I’m not going to get that information however. Why not?

It is partly because most people are terribly inexperienced at thinking about chances in their daily lives. Answer this question: 

“I am 80% confident that the average distance between the centers of the earth and the moon is between ____ and ____ kilometers/miles.”

Try it. Write down your range. The answer is here.

So far, I have asked 40 scientists and operational forecasters to give their ranges. If people were good at quantifying their uncertainty then about 32 people (80%) would give ranges that contain the true distance. Instead, only 10 people (25%) have. This means that people (even those that predict for a living) give too narrow of a range and are overconfident in what they think they know.

Therefore, even if they were armed with the information “there is a 75% chance of the flight leaving in 10 minutes”, passengers would be largely unprepared to come up with the rest of the information necessary to make a good decision (e.g. in those 10 minutes, there is a 80% chance I could successfully get coffee, 90% chance of getting to the bathroom, 40% chance of getting both coffee and bathroom, and so on).

That said, with practice and feedback, people get better at sizing up risks. Once they learn that they are overconfident, people start to widen the range of their guesses. However, it takes some discipline to look back at past forecasts. Also, the feedback loop rarely closes in practice, especially if it is something that people do infrequently (e.g. navigate an unfamiliar airport, protect against an unprecedented flood).

But I’ll start the process by collecting my first data point. My flight was supposed to leave at 8:20. We touched off at 8:24. I probably wouldn’t have had time for another coffee.

Tuesday, September 11, 2012

The River Runs Red (Yangtze, China)

The Yangtze River at Chongqing has mysteriously turned scarlet this week. 

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Amused locals are collecting souvenir bottles of the tomato juice-colored water.

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The contrast is greatest where the polluted Yangtze (left) meets the Jialin (right).

No one is sure why the river has changed color, but this is not the first time something like this has happened. When a dye producing company dumped stocks into the Jain river, the result was described as “hellish”.

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Blood-colored water in a separate incident on the Jian River in the city of Luoyang.

Monday, September 10, 2012

US Drought Impacts: From Power to Popcorn

Last week I met Andreas Weigel, a climate analyst with Cargill (a multinational food producing and processing company) and when I asked him about the drought, the response was an animated mix of awe and fear. With droughts causing failures in both the Russian and US harvests, all eyes are trained on the rainfall in Brazil. The Russian drought cost 1.2 billion dollars in agriculture losses and the impacts in the US will be several times that. Just the uninsured damage to cracking house foundations is on the order of 1 billion dollars.

parched-gulch-ab0ccc74e803a404967a861160a9d9f15497c50f-s3 A parched gulch in Missouri

Weigel was at the European Center for Medium Range Weather Forecasts seminar on seasonal forecasting, along with the top scientists and other analysts (from energy companies, banks and relief agencies, among others). The skill of the weeks-to-months ahead forecasts is modest, but even the slightest signal can help with planning or give a competitive advantage.

It is hard to declare victory for this year’s forecasts (indeed Climate Central highlights their failures: “the sea surface temperature pattern “would suggest drought,” but … forecasters completely missed the scale and scope of the disaster that has been unfolding during the past few months.”)

How bad is it? The drought maps leak red like the US has taken a slug to the gut. By some measures (e.g. area-wise) it’s the largest US drought in 50 years. It has been described as a “silent tsunami” sweeping across the country.

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Map of drought over the US

What’s remarkable about drought is that it is so hard to picture. It is more about something not happening (the eerie silence of the grain processing plants, the stunted size of the crops), than something happening (torrents of water tumbling cars down a channel). It’s a creeping disaster that is easy to deny and slow to recover from. The fingers of the drought’s influence are likely touching your life, even overseas.

Some have said that there could be a shortage of popcorn. It is not like there will be empty shelves, but the quality will be lower and it will be more expensive. That said, popcorn has one of the highest markups of any product on the market. There are pennies worth of corn in a tub of movie popcorn- the box costs more than the product. Even then, what has ten times the markup of popcorn? Bottled water.

The rise in the price of corn will have a trickle down effect, perhaps making your monthly grocery bill about 20-30% more expensive. This will be magnified even further when it comes to prices of meat (because corn is used as animal feed). Right now farmers are selling off their animals in record numbers in anticipation of not being able to afford to feed them. The result is a lower price of meat in the short term because the supply is high, but the price will shoot up when those supplies run out.

The other major impact will be in energy production and prices. John Daly has some analysis at oilprice.com. From that article:

“virtually all power plants, whether they are nuclear, coal, or natural gas-fired, are completely dependent on water for cooling. Hydroelectric plants require continuous water flow to operate their turbines. Given the drought, many facilities are overheating and utilities are shutting them down or running their plants at lower capacity. Few Americans know (or up to this point have cared) that the country’s power plants account for about half of all the water used in the United States. For every gallon of residential water used in the average U.S. household, five times more is used to provide that home with electricity via hydropower turbines and fossil fuel power plants, roughly 40,000 gallons each month.”

“”In summer you often get a double whammy. People want their air-conditioning and drought gets worse. You have more demand for electricity and less water available to produce it. That is what we are seeing in the Midwest right now, power plants on the edge”… In July U.S. nuclear-power production hit its lowest seasonal levels in nine years as drought and heat forced Nuclear power plants from Ohio to Vermont to slow output.”

Friday, August 3, 2012

Five tips for traveling and living (150th post)

Fairly soon will be to the one year anniversary of starting traveling around the world. I began in August 2011 in Perth, Australia and last week I was in Perth, Scotland (hosted by river forecasters at the Scottish Environment Protection Agency). I gathered 43 new stamps in my passport, including for such places as Iran, Nepal and the Democratic Republic of the Congo.

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Given that this is also the 150th post on this blog, it seems time to reflect on the experience of traveling. Before I started, I sought all kinds of advice on the Internet and from friends and family. Many people said much the same thing (e.g. every new traveler packs too much stuff). Some of the advice was contradictory (e.g. “don't put all your eggs in one basket” vs “sometimes you can only cross a river successfully with a running start”). I got myself in innumerable unfamiliar and unpredictable situations, but a few mantras saw me through. Even if you are not traveling, maybe these are still words to live by.

  1. When clean and dirty laundry mix, it all becomes dirty laundry.

    In some contexts “dirty laundry” means secrets and things in one's personal life, but for traveling this is literally a good idea. I have a bad habit of mixing sorted items in with junk, making it all junk. Or I will organize my pack in the morning and then dump out its entire contents in the evening, only to have to organize it again the next morning. At work, I will clean up some data or edit some writing without marking what is finished or not. Similarly, I spend too much time re-reading old emails to see if there were any follow-up items I am missing. Mixing the bad in with the good leads to unnecessary re-evaluation of the good and less attention to the bad.

  2. Asking for what you want increases your chances of getting it.

    People will stop and give you a ride if you stick out your thumb, more so than if you simply look forlorn in the rain by the side of the road. When you approach others, you also have more control over the interaction. Otherwise, you will be at the mercy of that “friendly stranger” who pounces just as you get off the plane/train/boat/bus; that person does not have your best interests in mind and should be avoided. Criminals will seek you out, but the random person you seek out for assistance is not likely to improvise some way of taking advantage of you.

  3. There is no use in continuing to worry about something until you have new information.

    One time in India the first leg of my flight was canceled and the airline opted to hire a driver so I could make my connection in the next city. The drive was going to be four hours long but my next flight was leaving in three hours. If I missed the flight in the next city, there would be a cascade of problems following down the line. The driver understood the urgency and was tearing down rugged roads, weaving into oncoming traffic and at times riding with two wheels up on the sidewalk. Four hours is a very long time to stress and stew in my own juices, but there was nothing new I could do to affect the situation. 

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    Typical view from the back seat of a breakneck taxi ride.

    Instead, I set a time after which I could start worrying again and briefly thought of a few conditions that would cause me to reconsider the plan (e.g. a car accident). I did not think of what to do after an accident happened, I only said I would have to reassess at that time what to do. I could have thought through contingencies A, B, C and so on, and continued to second guess the best course of action but it was going to be wasted effort. Instead I took in the scenery and thought of other things. Eventually, the ride took three and a half hours but I made the next flight because it was delayed (as one learns to expect in India). The moral is that problems of your life will not be resolved in your mind.

  4. Satisfice – pick the satisfactory and sufficient course of action.

    A few days ago I missed the last train out of a city, it was getting dark and I did not have a room to stay in. Since I was going to take the first train out in the morning I did not want to pay much. I wandered around asking about prices and found they varied by about five British pounds. However, I spent an hour walking so my time was worth less than minimum wage.

    When considering the costs, I should have taken into account the big picture- the price of the room, the value of my time, the effort of carrying my pack and so on. There were intangible benefits of getting exercise and seeing a relatively scenic part of town. But what was I giving up by continuing to shop around? What could have I been doing instead? Rather than finding the absolute best price I should have thought about what I was willing to pay, chose the first place that met that price, achieved closure and moved on. When I am indecisive, it is often because I am not being honest with myself about the true total costs and what I value.

  5. Always ask yourself “should I be in this line?”

    This rule made it on “the list” after trying to make it to a connecting flight in a Chinese airport. The signage was poor and I just assumed I should follow the others and get in any line I encountered. The longer the line, the more I thought I should be in it. I waited in customs lines I didn't have to, declared currency under the reporting limit, went to the wrong terminal, left security and had to come back in, lined up for domestic when I was going international, lined up for international when going domestic, queued up for the ladies bathroom, and so on.

    Now I handle lines by first asking what the line is for and then investing a few seconds to find the fastest lane to be in. Despite my “satisfice” advice above, people too often go to the first lane they find, not bothering to discover the distant unused lanes at the ends. Knowing this, some people do purposefully go to those end lanes, so my strategy is to pick the second to the last lane. Also, I see how many officers are serving a queue- some lanes in passport control have one officer, a few have two in series, meaning that line will go twice as fast. The same applies for picking the line at the grocery or going through a toll booth on a road. There are good reasons why you should not switch lanes mid-wait, best explained by this video:



    Know sometimes though that the Bureaucracy is just out to mess with you. I once waited in a line at a Mexico border only to be told I needed something from another counter. When I got to the front of the next line I was greeted by the same person asking “how can I help you?”

If you enjoyed this, please feel free to share your own travel mantras in the comments below.

Monday, July 23, 2012

Are All Disasters a Conspiracy? (Russian Floods)

Earlier this month a flood in the Black Sea region of Krymsk struck in the middle of the night killing close to 200 people. Nearly a foot of rain fell in the mountains and a 20 foot tall wall of water rose in the cities in 15 minutes. Yesterday, Krymsk’s mayor, its district leader and the local emergency services chief were taken into custody for failing to warn the victims. I include background on the issue and some discussion at the end.

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Man surveys flood damage in a home

A Russian Federation government report on reliefweb.int gives extensive facts and figures of the disaster and response (e.g. “Emergency psychological aid has been provided in… 11,351 cases”) but vivid narratives can be found in the New York Times:

“Lyudmila Dmitriyevna, 64, said she awoke early Saturday to the sound of voices, stepping onto her third-floor balcony and peering into the gloom.

“It was as if I were looking at a stream of clay,” she said. “It was so loud, there were people screaming in the water, and metal barrels, and animals. It boiled and boiled, it covered the streets and the yards, it was all you could see.”

Like many residents interviewed, she said she suspected that the raging flow was a result of an official decision to release some water from a swollen reservoir in the hills above the city — a theory rebutted by scientists from Russia’s environmental monitoring service, who said Friday’s rains swelled nearby rivers with the equivalent of six months’ average precipitation.

But those explanations, like the overtures of officials, have done little to win back Ms. Dmitriyevna’s trust. “Putin came, Tkachev came, the mayor came,” she said. “They deny everything. They are protecting their own interests. Why would they protect ordinary people?”

Her husband then took her by the hand and pulled her away from a reporter, saying that if she gave her full name, “they’ll take you out and shoot you.”

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A soldier digs graves

The Times also reported:

Survivors erupted in angry shouts when they learned, during a conversation with Gov. Aleksandr Tkachev, that officials received warning of the danger three hours before the wave hit, but had made no attempt to evacuate sleeping residents.

At the time, Mr. Tkachev — an ally of President Vladimir V. Putin — responded sarcastically to the notion that officials should have taken any action, addressing the hecklers as “my dears.”

“What, are you saying we should have gone to everyone?” he said as he struggled to be heard over the angry responses, according to video of the meeting. “That’s impossible. First of all, with what resources? Secondly, what would you have done — just stood up and left your houses?”

The frustration of the residents comes through in quotes from The Guardian:

"No one told us anything," said one woman standing at the city administration building, who asked not to be named. "Our officials say the dam had nothing to do with it, but everyone here knows otherwise."

A spokesman for the prosecutor general's investigative committee said the reservoir was not involved in the intense flooding. Local prosecutors earlier admitted the gates had been opened, but it was too early to say if that caused the flooding. Nearby towns were untouched….

Many if the dead were elderly. Loskutova described how she saved her 76-year-old mother: "I was screaming, 'Mama mama!' The water came in so fast and hard, we could barely break through the windows. I prayed and screamed for her not to let go."

The two women climbed on top of furniture where they stood until the water almost reached the ceiling, then finally they climbed through broken windows and on to the roof, she said.

"Then I sat with her, wet and naked, for 12 hours on the roof." No emergencies officials came, Loskutova said, and eventually her son arrived with a boat and ferried them to a hospital. "Are we not people?" she asked.

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“When the whole life just floats away”

The International Herald Tribune has a good analysis of conspiracies around the idea that the reservoir purposefully released water to flood the town. Here is the text of a social media post fueling one of these theories

“Everyone is keeping quiet about this now, but last night my father was working and he says that they called an emergency meeting in the middle of the night to decide whether to open the floodgates of the Neberdzhaevskoye Reservoir,” Andropova wrote. “And what do you think? Of course they decided to open the floodgates! They sacrificed Krymsk and still didn’t manage to prevent the flooding of Novorossiysk. Good job. But at least they should have warned people the water was coming! Why didn’t they send the police ahead with warnings? Why didn’t they turn on the sirens so people would wake up? Now the stores are closed, we have no electricity or food. Krymsk is surrounded by troops, though there is no longer a Krymsk to speak of — just ruins. Many old people died. My friend’s parents have disappeared: they weren’t home when the rescue crews came, but they haven’t been found in the morgue either.”

Russian media has been contending that the reservoir couldn’t have caused the flood:

The dam of this reservoir is… located on the opposite side of Krymsk. Moreover, the emergency discharge of the reservoir is of a glory-hole spillway design which excludes the discharge of any considerable quantity of water.

The local authorities have reported that there was a discharge of water from the reservoirs, but whether they could have contributed to the flood in any considerable manner is a question that remains to be answered. However, the likelihood these reservoirs were in fact sources for the hundreds of thousands of tons of water that flooded Krymsk remains highly questionable on purely technical grounds.

The basin, located deep in the mountains, may have secured the town from total immersion, it appears. Waters levels in the reservoir jumped from 3 million to 8 million cubic meters overnight, so the storage worked as a “safety bag” for the city, securing it from an even worse flood, the Neberdzhaevsky press service says.

Moreover, “Krymsk was flooded much earlier than the reservoir started draining excessive water,” the press service told RIA Novosti. On Sunday the Investigative Committee confirmed that it does not consider a water discharge from the Neberdzhaevsky reservoir as the primary cause of the deluge…Local authorities insist that the true reason for the flood was the record level of precipitation in the region.

Anger was originally directed at the national government but Russian state media has deflected that back to the regional level:

The regional emergency services reported that local authorities had received weather warnings two days before the disaster. They also say the Emergencies Ministry sent out weather warnings by text message through mobile operators.

Pravda goes so far to say that provocateurs are deliberately spreading false information to undermine support for Putin:

Any cataclysm causes a great deal of rumors and the most controversial speculation. For example, victims of the earthquake in Armenia in 1988 sincerely believed that right before the shocks a silver plane appeared in the sky and something was dropped from it. This is a simple property of the human psyche - to try to explain blind violence of nature by human actions and find the cause that triggered the cataclysm. You cannot flog the ocean for drowning the ship.

The events in and around Krymsk go far beyond the standard reactions of shocked people to a disaster…Today, despite all rebuttals, despite the fact that an independent group from Krymsk has circled Neverdjayevskaya dam reservoir on an airplane, the attempts to fully refute the belief of the people that a wave was directed at them intentionally, have failed. People started talking about other reservoirs in the region from which the water could go to town. They began to look for other causes of flooding, understanding that the "Novorossiysk" theory had failed. Other theories included "drained water from the site of Grushevka Rosneft", "tried to save Putin's dacha in Praskoveevka," etc.

…On July 9 unidentified vehicles in the streets were announcing to the local residents that the second wave of floods was coming. Allegedly, the dam at the reservoir Neverdjayevskaya broke down and another multi-meter wave of water was approaching the city.

These "warnings" have generated a serious panic in the city, people rushed to the roofs of the houses, traffic jams emerged on the exits from Krymsk. Local authorities tried to calm the citizens down for hours, let the police cars on the streets urging people not to give in to provocations, explained that there was no second wave and the reservoir was fine.

Provocateurs were not found. In a dilapidated, panic-ridden city, the search and identification of criminals has become a real problem. However, the mere appearance of such "warning vehicles" is remarkable. It means only one thing - there is an organized group of provocateurs in Krymsk seeking to undermine the situation, politicize the disaster, and direct anger and frustration of people in the direction advantageous for the manipulators.

The Moscow Times puts a finer point on it (my emphasis added):

This is a well-known psychological phenomenon and very bad news for the authorities. It is common for victims of natural disasters to believe that they were victims of an evil plot of some sort. The famine of 1317 was blamed on Jews, and the black plague epidemic of 1347 was blamed on Jews and witches, who were subsequently burned at the stake.

This is bad news for the authorities because the people of Krymsk do not blame their troubles on Jews, witches, U.S. State Department, foreign agents or anti-government protesters. These once-steadfast supporters of Putin place the blame squarely on the Russian government.

The Christian Science Monitor also calls this a “familiar pattern”:

"There is a by now familiar pattern that repeats itself every time there's an accident," says Nikolai Petrov, an expert with the Carnegie Center in Moscow. "People blame officials, often with good reason, for failing to protect them. Central authorities look for someone on the local level to attach the fault to, and local officials squirm and lie to evade responsibility."

Is it true that victims of natural disasters often believe they were victims of an evil plot? The theme of “Flooded residents direct anger at reservoir operators” was one that I heard commonly this year, such as during the Queensland Floods and in the Manila Typhoons. I heard stories in the Philippines of citizens believing a dam was flooding their city, an idea easily refuted by looking on a map and noticing that the dam was over in the next valley and had no control over the local rivers.

Compare this headline “In terrorist attack, Putin destroyed whole town in Caucasus to save his Black Sea palace” with this story from Bangkok a few months agoThe king refused his palace to be protected from the flood, arguing that the water would just go around it, and it wouldn’t do any good to anybody else. No wonder they like the king here. But there is resentment in the outer provinces of Bangkok, about the suspicion that their neighbourhoods were sacrificed in order to save central Bangkok.” (read more about politics and floods in the US, Bangkok and Jakarta).

The IHT article touches on the central problem with muddling natural and man-made disasters:

“We shouldn’t be making up crimes where there were none,” Shultz added. “Especially since there are plenty of specific and true reasons to be mad at the regime.”

To a Russian, both versions of events are believable — except that a story imputing malice to the authorities is probably more plausible than a sudden natural disaster. We Russians no longer believe anyone who addresses us in the public sphere: the president, the television, the newspapers, the police or bloggers we don’t know personally.

Thus in addition to the tragedy of the people who died in Krymsk, there’s the tragedy of having no hope of ever knowing what really happened to them.

UPDATE: A new theory emerges…Is this also a part of the “familiar pattern”, that a scientist armed with data (measured from outer space, no less) would waltz into a messy and contentious politicized issue? From the financial times

Lev Denisov, head of the Laboratory of Remote Sensing at the Institute of Geography of the Russian Academy of Sciences, has another theory which many experts say offers a more probable explanation. The flood’s force, he said, was caused by water being channelled through small openings in a raised highway south of the city.

Using photographs taken from the International Space Station, his team pieced together the path of the flood waters, which he said built up behind a 7m-high road embankment south of the town, as well as a raised railway, by late evening on July 6. The waters were held back by logjams of debris which temporarily clogged eight narrow bridge openings.

“When the pressure became too high, the debris clogs burst, unleashing this wall of water,” Mr Denisov told the FT.

He pointed out that the height of the wall of flood water was roughly similar to the height of the highway embankment – 7m – and dismissed the theory that the floods were caused intentionally….

Suren Gazaryan, an ecologist based in southern Russia who was one of the early champions of the artificial cause theory, announced last week on his blog that he had changed his mind. “I came to the conclusion that discharge of water from the Neberdzhaisk reservoir could not be a major cause of the flood, although residents [of Krymsk] adhere to this version,” he said. He said on twitter on Saturday that the highway construction was “an obvious reason” for the floods.

Friday, July 13, 2012

Largest Area Natural Disaster in US History

The UK daily mail has this headline America burning: Drought devastating 26 states is the largest natural disaster area in U.S. history. Here is a picture of the weekly monitor of drought status across the US. In the history of the drought monitor product, this is the first time such a large area has been covered in drought.

drmon

Here’s my chart of how the area in drought has changed over time:

DroughtMonitorAreaSmall

They say that drought is a creeping disaster. This was two years in the making, but has rapidly accelerated in just the past few weeks.

Today the USDA formally declares over 1,000 counties in 26 states as agricultural disaster areas. The map of those areas is here:

article-2172931-140AEAA0000005DC-912_634x473

There is a video tour of a devastated Iowa corn field here.

Which US Cities Have The Best Weather?

Climatologist Jan Null created a “Camelot Index” to measure which cities have the ideal weather. From his page

“In this 1960's musical King Arthur professes that Camelot has a perfect climate all the year; and by royal decree at that! But actually an "ideal" climate is extremely subjective, with one person's idea of perfection being met with disdain by others. Some individuals may want warm beach weather all year round, while four distinct seasons are most desirable for others. What follows is just one person's (the author's) idea that an ideal climate is sunny and relatively mild with few extremes in temperature, humidity or precipitation.”

Here’s the map of the index, with higher numbers meaning better weather:

 camelot_climate

Here’s the top 10 best weather cities in the US

1 San Diego CA
2 San Francisco CA
3 Los Angeles CA
4 Sacramento CA
5 Eureka CA
6 Las Vegas NV
7 Fresno CA
8 Redding CA
9 Galveston TX
10 Key West FL

Not that surprising that California holds 7 of the top 8 spots.

And here’s the bottom 10 worst cities

10 Concord  NH
9 Syracuse  NY
8 Quillayute  WA
7 Sault Ste. Marie  MI
6 Anchorage  AK
5 Elkins  WV
4 Hilo  HI
3 Nome  AK
2 Juneau  AK
1 Mt. Washington  NH

Saturday, June 30, 2012

Colorado fires hit home, literally

Three days ago, my wife’s parents’ home in Colorado Springs was consumed by the Waldo Canyon fire. The news came as a brief note:

“The alarm company just called and the whole house exploded. All of the window alarms went off.”

Within a day, an image was emailed showing the property as a smudge of white ash. 

Pic of Subdivision

The house was in the upper left of the yellow box

Later it appeared in the middle of a channel 9 video:

ColoSpringsPhoto

Other video from channel 9 shows homes turning into fireballs at night against the dark silhouette of the mountain:

ColoSpringsPhotoNight

The reporter describes: “This is really very close to that worst case scenario that so many people in Colorado Springs talked years and years about. This is why people were so adamant talking about mitigation efforts… and that when you have to evacuate, you may have to do it quickly. And that happened for tens of thousands of people today.”

A fleeing resident describes leaving irreplaceables behind

My heart was pounding as I made one last sweep through our little house in Raven Hills. I wondered if my family would ever celebrate another birthday here. I paused at the window where we saw so much wildlife in the woods outside. Where we always put up our Christmas tree.

In the garage, I stopped at the wall where we traced our kids’ profile, measuring their heights to document their growth over the years. I took one last picture of the shark mural in my youngest son’s bedroom, grabbed my oldest boy’s high school letterman’s jacket, took a photo of my daughter at Disney World and began our escape.

enhanced-buzz-wide-31969-1340987693-3
From a gallery of ghosted houses at Buzzfeed

He then witnessed hell in the rearview mirror:

Intersections were blocked by panicked drivers trying to escape. Sirens wailed all around. I felt trapped in a horror movie… I had to go west, toward the flames, to escape. But that route was blocked as well.

Finally, I went into four-wheel-drive, hopped a curb, blasted down a hill, across a soccer field and over a trail to reach Rockrimmon Boulevard where six lanes of traffic were headed east on both sides of the median.

And there I sat in traffic. It’s a memory I’ll never forget. I teared up as I scanned the surrounding cars. Everywhere were children, scared and crying, their parents looking deathly afraid and, in my rearview mirror, a view of the gates of hell.

A friend on facebook shared this photo of the fires above Boulder

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And another friend wrote

That kind of disaster never seems to happen to someone you know, until it does.

Friday, June 29, 2012

“It was like a scene from Armageddon” Cork, Ireland Floods

Yesterday 50 mm of rain fell in about 3 hours near Cork, Ireland.

The #corkfloods twitter feed is a good source for the latest information and the Irish Examiner has several stories of the resulting floods, such as this one with the headline “Everything is just destroyed again — for the fourth time”.

Cian Coleman had to help emergency services take his pregnant girlfriend Michelle McCarthy to safety: "I went downstairs and the dog was swimming around the kitchen. It was coming in through the door and I was trying to push the door in. Michelle has only two weeks to go, they took her out in a boat, which was floating in water above the front wall outside."

As [someone whose house had been destroyed] started to wade back through the drive to her front door, her daughter Fiona returned from a check on their neighbours.

"Look what someone’s after giving me," handing her mother a pink-covered photo album that was found in a nearby green area. It had clearly been among the items from their front room carried out the door in the early hours.

"They just came up and asked did I know who it might belong to. I opened it up and there was a picture of myself," said Fiona, laughing at the coincidence and irony of an otherwise disastrous morning.”

The Irish Examiner also has this eye witness account:

“The first inkling I had that something was wrong was sometime before 5am when I heard a car go through the estate — Meadowbrook in Glanmire — with the driver beeping and roaring out the window.

I was all set to give out to him until I looked out the window and saw what looked like a river running through the estate.

I rushed downstairs and tried to stop it coming through the door but at that stage, it was too late. It was a strong torrent of water and there was nothing I could do to stop it.

The power of it had to be seen to be believed. It flowed straight into the estate. It was covering the floor of our cars at that stage.

We all managed to get out, we got our dog Sophie out, and we were lucky enough to save our cars. Then all we could do was lock the door of the house and leave…

It was as high as five or six feet in some parts of the estate. The fire brigade rescued those who couldn’t get out of their homes, and helped others move upstairs.

By the time I got back to my house, it had been ruined. All the floors had come up, the furniture was destroyed, but we were no different to anybody else. Luckily, no one was injured or killed.

I managed to wade to other parts of the estate where the water was even higher. I knew there was an elderly man living nearby who slept on the ground floor of his house, so myself and two firemen managed to wake him up and move him upstairs in his house.

It was like a scene from Armageddon. The fire brigade had brought a RIB [Rigid Inflatable Boat] and punts to rescue people, water was nearly covering the cars. It was something else…

One woman on the estate had her goldfish bowl washed away but the goldfish were found swimming around the garden and rescued by hand, which was pretty amazing.

Ironically, I got a text message telling me of a flood warning in Bandon. I was standing up to my waist in water when I got the message, thinking ‘What about bloody Glanmire’s warning?’

It felt a little bit like the blitz in England during the war. Everyone pulled together. The community centre was offering teas and coffees to people and Liam Griffin from SuperValu sent across a load of grub.

It was a hairy few hours. It will take weeks to clean up. Looking around, what was a sea of water just a few hours ago is now a sea of mud.”

Tuesday, June 26, 2012

More animals in the streets/The cone of uncertainty

Following on the recent post about a seal running around in Duluth, a twitterer tweeted this photo of an alligator using a crosswalk recently during Tropical Storm Debby in Florida.

Croc2

Like that other post, there are lots of photos of submerged cars in Florida:

  Croc

Perhaps the most interesting to me though was to see the hurricane path forecasts of Debby. Here’s South Florida Water Management District’s plot of the computer model guidance from 3 days ago (22 of June 2012):

storm_96

Each line is the possible track of the eye of the hurricane, as predicted by 15 different forecasting models run by various agencies. Things seem sure for the first 2 days that the storm will head north, but then after that it was anyone’s guess if it would head west to Texas, north or east across Florida.

Here’s the actual path (in purple) with another way of displaying the most recent forecasts (i.e. as a cone of uncertainty, than a spaghetti of possible scenarios).

track

And then here’s the equivalent spaghetti plot for the most recent model runs:

storm_04

Notice a tighter clustering of the model runs now, they all head off in the same general path. The important thing to take away from this is that sometimes weather models give confident results with high certainty, but in some situations the results can be all over the map (literally). In theory, sometimes the cone of uncertainty should be narrow, sometimes fat.

Do notice, however that the legend for the graph labels the orange cone “historical std dev [standard deviation]”, a measure of the typical error versus leadtime for all the historical predictions, averaged over a number of years. The width of this cone then, in practice, doesn’t change, even if the forecasters know that a particular situation is more uncertain than another. That said, requiring the forecaster to predict both the center of the cone and its width every time is an extra operational workload, and it’s something that takes extra training to do accurately.

Wednesday, June 20, 2012

Flood causes seals in the streets of Duluth

Photos are coming from Northeast Minnesota, US, showing record or near record flooding. One of those includes a seal waddling down Grand Avenue:

20120620_duluth_seal_53

The original caption reads “This seal is one of two that escaped from the Lake Superior Zoo in Duluth during last night's floods. Zoo officials say the seals were returned safely.”

Strangely enough, this is the second story I’ve read today about exotic animals run amok during a flood. Earlier today I discovered the story behind a photo of a lion holed up in a church during a Texas flood a few years ago. That article includes a quote from a local “When you think you've seen everything, you find something else”.

NPR’s audio story from Duluth describes how aging water pipes have cracked, burst, then sucked down gravel to form sinkholes that have swallowed cars, like so:

20120620_duluth3_53

Original link

Minnesota Flooding

Some of the pipes and a manhole cover are visible in the above picture. Original caption: A car fell into a huge sinkhole in Duluth, Minn. on Wednesday, June 20, 2012. Duluth Mayor Don Ness said he would declare a state of emergency after the deluge of up to 9 inches of rain that he said caused extensive damage to the port city of about 86,000. Ness said the order would start the process to obtain federal aid. Gov. Mark Dayton said he would travel to Duluth on Thursday to discuss how the state can help. (AP Photo/The Duluth News-Tribune, Bob King )

Minnesota Flooding

Road eroded from flooding

Sunday, June 17, 2012

Hydrologic Oddities: Turf blisters

There is a recent video from Portland, Oregon showing someone jumping up and down on a patch of grass like a trampoline:

 

CBS News says that a reader explains:

Depending on where exactly this is, often times, landscapers will lay down plastic sheet on bad soil then plant sod on good soil laid on the plastic. If this is the case, a water line may have broke and now you have water under the plastic liner, hence the bubble. If it's not liquid, natural gas could also be a cause. The safe bet is though, there is a plastic liner under the sod and whatever is under the liner has caused the bubble.

There's an animated gif of someone walking on a turf blister:


20eb78ef9a38d49b89381ad30f474f52173323df

Easily, the most impressive example comes from Greywolf Golf Course where this 18" high blister formed because of a pipe that broke under “creeping bentgrass on our fairway that has two much thatch.”

 GrWolfGC

 

Greywolf also has this video of the blister popping:

 

But for a further introduction, here's an enthusiastic place to start with videos of bubbles under grass:

 

 

This dog didn’t quite know what to make of the bubble:

Because of the combination of artificial grass and underground pipes, these things seem to happen at golfcourses, such as this video:

Here some golfers laid down on the blister like a waterbed:

 

At around 0:16, a golfer lanced one of the boils with a club:


After popping this blister, water gushed out:

 

Monday, June 11, 2012

Hug a climate scientist day

June 10th is hug a climate scientist day. According to “Crikey”,

Did you know that our own decent hardworking Aussie Climate Scientists regularly receive death threats and are sent pictures of dead animals? It is true…. This situation got so bad at he Australian National University, they had to move their climate scientists to a secret location… We need to let our climate scientists know that we love them and appreciate their hard and very important work.” 

 

HugAClimateScientist

Find a climate scientist, give them a hug and let them know it’s going to be alright.

After that, maybe you want to post a photo on the “I *heart* climate scientists” facebook page.

Tuesday, June 5, 2012

Hydrologic oddities: The loss of happiness in France

The happiness is lost in France.

Specifically, “The Happiness River” (Le Bonheur) in southern France flows along the surface for a bit until it reaches limestone rocks. From there, the river disappears underground at a place called “The Loss of Happiness” (La Perte du Bonheur).  

Perte_bonheur

Where The Happiness disappears

Hydrologist Vazken Andréassian (a fellow fan of strange rivers, which he calls “monsters”) indicated to me that there was something uniquely French about a place where happiness is literally driven into the ground.    

Where the river emerges is called Bramabiau, named after the word for ox. From one description (google translated) “During high water, this resurgence with its waterfall is loud, which is amplified by the walls of the canyon, like the cries of an ox”.

wp8ef14f86

Shortly downstream, the river comes back to the surface at “The Abyss of Bramabiau” (l'abîme de Bramabiau).

We can only hope that the French spirit is just as boisterous when the happiness returns.