Another flooding mega-disaster: Sri Lanka recovers from extreme flooding
At least 43 are dead and thousands still in refugee camps due to extreme flooding in eastern Sri Lanka caused by record monsoon rains. According to the United Nations, the rains in recent weeks in Sri Lanka have been the heaviest in nearly 100 years of record keeping, and the flood that resulted was a 1-in-100 year event, according to The U.N. Global Disaster Alert and Coordination System. Rainfall at Batticaloa, Sri Lanka, during the 42-day period December 1 - January 12 was 1606 mm (63"), which is about how much rain the station usually receives in an entire year (1651 mm, or 65".) Sri Lanka's previous most devastating flooding disaster was the 2004 tsunami, but as The Economist commented, "in terms of the numbers of people displaced and farmland inundated, the floods have been even more devastating than the tsunami of December 2004." Damage estimates start at $500 million, and much of Sri Lanka's agriculture has been severely damaged by the disaster. Also of concern is the large number of land mines from the recent Sri Lanka civil war that may have been unearthed by the floods. Water is also a major concern in the flood-hit area, as fighting between government forces and Tamil Tigers rebels from mid-2007 to May 2009 damaged or destroyed almost all of the water facilities.

Figure 1. A family affected by the 2011 Sri Lanka floods braves the flood waters. Image credit: United Nations.
Sri Lanka is now the fifth nation in the past six month to suffer a flooding disaster unprecedented in its history. As I reported in a previous post, the other four mega-impact floods--the July 2010 Pakistan floods, the December - January Queensland Australia floods, the November 2010 Colombia floods, and the January 2011 Rio de Janeiro floods--were all accompanied by an atmosphere laden with moisture, due, in part, due to sea surface temperatures over nearby ocean areas that were the 2nd or 3rd warmest on record. However, that was not the case for the Sri Lanka floods. Ocean temperatures during December 2010 were 0.2°C below average in the 5x5 degree square of ocean adjoining the island (5N - 10N, 80E - 85E). The floods appear to be due to the normal monsoon rains that typically affect the region this time of year, enhanced by the strong La Niña event occurring in the Eastern Pacific.

Figure 2. Satellite-estimated precipitation over Sri Lanka for January 3 - 9. Up to 18 inches (525 mm) fell over eastern Sri Lanka. Image credit: NASA Earth Observatory.
Jeff Masters
Reader Comments
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I know who I'm talking to so I won't get my hopes up, but could you be a bit more specific? A link perhaps?
Because just putting in "France Nuclear Energy" doesn't turn up anything that would indicate I'm off the mark, nor negative. In fact, with the introduction of their underwater nuclear plants, I'd say things in France are moving right along.
In fact, they're so good at what they do we outsource some of OUR nuclear waste to them. They have an energy surplus which they sell to surrounding nations. In fact, almost all the fossil fuels they do use are for transportation.
Their "accidents" for their entire operating history come out to a fraction of what the Gulf Oil Spill cost. And their plants produce less radioactive wastes than what a coal fired plant spews into the air.
The only issues I found were dealing with how they produce too much power so the plants weren't being optimally utilized (they actually have to shut some plants down every now and then so they don't overpower the grid), and how ultra cheap electricity has led people to be more lax about energy conservation.
Other than Wikipedia and French sites about their nuclear energy program, most of the other links that were returned were stories and press releases about new nuclear initiatives and the successes of the French nuclear program.
So if you could kindly post a link or links showing how I am incorrect, I would appreciate it because all the official sites seem to indicate that things are pretty good over there in regards to their nuclear energy.
Uh... I work for a big energy company and our corporate position is "all of the above" (except for coal) wrt energy.
I know. We send some of our nuclear waste to France, who enjoy buying nuclear fuel for dirt cheap prices.
Goodness me I've given you 2 "+"s today :)
(Reuters) - The deaths of 200 starlings in Yankton, South Dakota this week is no mystery -- they died as the result of poison set out by the U.S. Department of Agriculture, an official said on Thursday.
Umm Master X I wasn't talking to you in that post, I was addressing my post to fellow bloggers.
All they have to do, is go out onto the internet and read about it for themselves.
Since you believe that they , most of the populace, are all quite ignorant, it is probably impossible for you to understand that most of the bloggers here are quite intelligent and capable of reading and understanding where France claims to be today.
Which isn't anywhere near where you claim them to be regarding that issue.
I will let them decide for themselves.
The big energy bashing accomplishes nothing. Exxon is still a bit in denial and Chevron has officially no set position but...
things must change...
things must change...
Now, I did meet somebody tonight who got a new car and thought 20 miles per gallon was great....
THEY ARE STILL SELLING JUNK LIKE THIS?
ARGH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Sorry. I was generalizing and dredging up ghosts of history past. I remember the ridiculous FUD flying around about how bad nuclear energy was. And then the fossil fuel companies got a gift from the gods: Chernobyl. It didn't matter that the reason why Chernobyl went up was because they deliberately disabled the safety protocols and then deliberately put it into a meltdown condition. It didn't matter that it was using unsafe reactor designs that hadn't been used in the rest of the world for 30 years. All that mattered was that it was nuclear and that it exploded.
These days we do indeed have energy companies that are into renewable and nuclear energy. So I apologize if you took offense.
lol, I love how people like you own yourselves in trying to cut others down, that's a key characteristic of an over sized ego :)
Are you serious? 20 mpg? A V-8 Studebaker land cruiser got better mileage than that!
Thank you.
It is always a sign of maturity to admit when you are wrong.
As a moron that happens to me often :).
Nobody else will comment on it I will. Sounds like something that I can't wait for! If it really does happen but I'll be hoping it does.
Check this out. While going through my papers and stuff, this popped up on a Super Nova.
http://www.msnbc.msn.com/id/40908913/ns/technology_and_science-space/
See you poke jabs at people even talking about this c'mon man.
es facil de ver... es una de las estrellas mas brillantes
si miran al cielo esta al lado de la constelacion de orion
You are quite the artful troll, aren't you? Deflecting the question without providing so much as a URL. I applaud you, and give you a tip of my hat sir.
However, I do take offense for you claiming things I never said. At no time did I state that all the bloggers here are ignorant. I didn't even use the word ignorant, which has significantly different connotations. I said the general populace is not as well educated when compared to other developed nations, which is true according to PISA.
The general populace does not come onto blogs such as this to discuss the weather dynamics of cyclonic systems, nor the merits of scientific research in regards to meteorology and climatology. The general populace is on Facebook discussing contestants on American Idol, not on weather sites discussing temperature records and extreme weather phenomena induced by La Nina/El Nino.
As I stated, searching for the terms "French Nuclear Power" in Google does not turn up anything to discredit what I said. In fact, the number one link takes you here, which gives a very detailed of France's nuclear power. Or you can go to the second link from that search here, which provides a more concise overview.
Once again I ask, can you site a source for your information? But we both know the answer to that question.
I don't care what anyone says, Zarmina's climate is not bizarre. It just goes through its normal cycles as it has for billions of years. j/k
Nah, this has been speculated about for decades now. What's recently piqued interest is the recent "possible" deformation they've detected in the star's signature.
The effects from the supernova would be visibly dramatic. It would be quite bright for a while, brighter than the full moon and visible during daylight hours. It would look really cool while it lasted, but would start dimming within a few weeks.
And that's about all the effect it would have.
This wouldn't be the first time for a relatively close star to go supernova. The Crab Nebula was star that exploded back in the 11th century and had a similar effect. Although it freaked the heck out of people when it happened back then.
Hey Gro the night shift ain't misbehaving.
Day shift... ummmm....
Much nicer now than it was today. I was afraid to come on. At my age, all that excitement in not good. I was shocked!!!!
If Alpha Centauri (just over 4 light years away) was threatening to go super nova, then we'd have a serious problem. But given that it is yellow dwarf main sequencer like our sun it's something we won't need to worry about.
Real Science
Huffington Post Drudge Report read them both and move on...
For those interested in a 5 BC event noticed in Asia found the following:
5 BC
Betelgeuse will, one day, go supernova. In fact, in astronomical terms, it's pretty damn close. That said, it's very unlikely to go bang this week, this month, or this year. Most discussions I've seen of it suggest that the supernova event will occur at some point in the next million years or so... it'll probably be sooner than that, but given that the stars move, relative to one another, it'll probably be significantly further from the Earth by the time it does go pop than it is now.
To give you a first-order estimate of the lifetime of a given star (from birth to death), then you can work it out fairly easily as follows. The luminosity of a star is, roughly proportional to the fourth power of its mass (that varies a bit, dependent on which fusion process is going on in the core, which is why the Hertzsprung-Russell diagram's main sequence is curved, rather than straight, but it's a reasonable assumption). The material fused by the star, its fuel, is the material that makes it up. Hydrogen burning takes up the great, great, great majority of the stars life (with helium, carbon, etc. phases, in the post-main-sequence life being really short by comparison). The amount of fuel that a star has, then, is directly proportional to its mass -- increase the mass, increase the amount of fuel (though if I remember right, most stars only burn ~10% of their hydrogen before they come to the end of their life).
So, the amount of energy given out by a star, its luminosity, is proportional to mass to the fourth power. This is basically the rate at which it burns its fuel -- fusing more hydrogen per second --> more energy given out...
The amount of fuel available is proportional to the mass
So, then, the lifetime of the star is determined by the amount of fuel it has, divided by the rate at which it burns them -- i.e. Mass / Mass^4
or
Lifetime proportional to 1 / M^3
So, if you increase the mass of a star by a factor of ten, you reduce its lifetime by a factor of 10^3 = 1000. Betelgeuse's mass is fairly well established, for a star, because it has a faint binary companion. We know it is around 19 times the mass of the Sun, so it'll live, roughly, 1/6900th as long. The estimated lifetime of the Sun is between 10 and 14 thousand million years -- so that means Betelgeuse, at first glance, should live for a couple of million years.
It's almost at the end of that time, as we can tell by the fact it's already a red giant. Even if we say that it is remarkably close to death (within 10,000 years of dying), the odds of it dying this year are pretty minimal...
Just sharin, take it as you may, but gotta love Carl ! gnight>>>>
Technological Singularity Explained
Saw you got in a few good shots today. Glad were talking astronomy. Been my hobby since way back when. Some interesting posts and so far pretty darn accurate. Somebody is doing their homework. Nice to watch.
Miracles do happen "(+)"
Anyways -- I think Betelgeuse is a bit too far away to cause catastrophic disruption of things here on Earth -- but it is far, far closer than the start that exploded to make the Crab Nebula (Betelgeuse is about 200 parsecs away, compared to about 2000 for the Crab). Assuming the two supernovae were the same intrinsic brightness, and no interference between us and them, then the fact it is 10 times closer would make it 100 times brighter (light intensity falling as the square of the distance to the source - inverse square law). That'd be 5 magnitudes brighter (magnitudes are a logarithmic scale measuring observed flux). The supernova that was seen at the birth of the Crab is estimated to have been about mag. -5 or -6 at brightest, brighter than Venus, fainter than the moon -- so Betelgeuse would be about as bright as the full moon (a little fainter, maybe).
As for the age equation I gave above, a bit of a caveat -- depending on where you are in the HR diagram, the luminosity varies as between M cubed and M^4... so assuming it all using the L prop. M^4th relationship gives a minimum estimate for the lifetime :D
And KrippleCreekFerry - I'm fine, thanks :) Floods are all either way up north, or way south-west of us -- Sydney has actually had slightly less rain than the average over the last month or so. It's my first year here, though, so I don't know whether the weather here has been particularly odd!
I vaguely remember reading a paper that was interested in the possibilities for supernovae to cause mass extinctions, a while back. I'm sure it said that a star would have to be much nearer than Betelgeuse to cause that kind of trouble -- maybe by another factor of ten or so? Don't quote me on that, though -- it's a hazy memory of a paper I read a few years back :D
Doesn't surprise me to be honest - it's the kind of answer I've given at outreach talks before when asked when the next big impact could come on Earth. The astronomer was probably trying to make the point that the explosion happening next year is incredibly unlikely even given their observations (10,000 years is a blink of an eye, in the lifetime of a star), but the risk of making statements like those is that they give people something to twist around to make a really alarmist story :)
Always got to be very careful what you say, and how you say it, is I think the moral of the story :D
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