Posted on 05/08/2008 7:19:07 PM PDT by blam
Why the Cyclone in Myanmar Was So Deadly
Michael Casey in Bangkok, Thailand
Associated Press
May 8, 2008
It was Asia's answer to Hurricane Katrina—though with a reported 100,000 killed, it was many times more deadly.
Packing winds upward of 120 miles an hour (193 kilometers an hour), Cyclone Nargis became one of Asia's deadliest storms by hitting land at one of the lowest points in Myanmar (also called Burma) and setting off a storm surge that reached 25 miles (40 kilometers) inland.
"When we saw the [storm] track, I said, 'Uh oh, this is not going to be good,'" said Mark Lander, a meteorology professor at the University of Guam.
"It would create a big storm surge. It was like Katrina going into New Orleans."
"Cyclone" is the name given to a hurricane when it occurs in the northern Indian Ocean or, as is the case with Cyclone Nargis, the Bay of Bengal (see map). (Get the basics on hurricanes/cyclones.)
Deadly Path
Forecasters began tracking the cyclone April 28 as it first headed toward India. As projected, the storm took a sharp turn eastward. But it didn't follow the typical cyclone track, which leads to Bangladesh or Myanmar's mountainous northwest.
Instead, the cyclone swept into the low-lying Irrawaddy River Delta in central Myanmar. The result was the worst disaster ever in the impoverished country.
It was the first time such an intense storm is known to have hit the delta, said Jeff Masters, co-founder and director of meteorology at the San Francisco-based Web site Weather Underground.
He called it "one of those once-in-every-500-years kind of things."
"The easterly component of the path is unusual," Masters said. "It tracked right over the most vulnerable part of the country, where most of the people live." When the storm made landfall early Saturday at the mouth of the Irrawaddy River, the cyclone's battering winds pushed a wall of water as tall as 12 feet (3.7 meters) some 25 miles (40 kilometers) inland, laying waste to villages and killing tens of thousands.
Most of the dead were in the delta, where farm families sleeping in shacks barely above sea level were swept to their deaths.
Almost 95 percent of the houses and other buildings in seven townships were destroyed, Myanmar's government says. UN officials estimate 1.5 million people were left in severe straits.
"When you look at the satellite picture of before and after the storm, the effects look eerily similar to Hurricanes Katrina and Rita in how it inundated low-lying areas," said Ken Reeves, director of forecasting for AccuWeather.com.
The Irrawaddy Delta "is huge, and the interaction of water and land lying right at sea level allowed the tidal surge to deliver maximum penetration of sea water over land," Reeves said.
"Storms like this do most of their killing through floods, with salt water being even more dangerous than fresh water."
The delta had lost most of its mangrove forests along the coast to shrimp farms and rice paddies over the past decade. That removed what scientists say is one of nature's best defenses against violent storms.
"If you look at the path of the [cyclone] that hit Myanmar, it hit exactly where it was going to do the most damage, and it's doing the most damage because much of the protective vegetation was cleared," said Jeff NcNeely, chief scientist for the International Union for Conservation of Nature.
"It's an expensive lesson, but it has been one taught repeatedly," he said. "You just wonder why governments don't get on this."
Global Warming?
Some environmentalists suggested global warming may have played a role.
Last year the UN's Intergovernmental Panel on Climate Change concluded that warming oceans could contribute to increasingly severe cyclones with stronger winds and heavier rains.
"While we can never pinpoint one disaster as the result of climate change, there is enough scientific evidence that climate change will lead to intensification of tropical cyclones," said Sunita Narain, director of the India-based environmental group Centre for Science and Environment.
"Nargis is a sign of things to come," she said.
"The victims of these cyclones are climate change victims, and their plight should remind the rich world that it is doing too little to contain its greenhouse gas emissions."
Weather experts, however, are divided over whether global warming is a factor in catastrophic storms.
At a January conference of the American Meteorological Society, some experts postulated that warmer ocean temperatures may actually reduce the strength of cyclones and hurricanes.
Masters, at Weather Underground, said Wednesday that, in the case of Nargis, the meteorological data in the Indian Ocean region "is too short and too poor in quality to make judgments about whether tropical cyclones have been affected by global warming."
Unnecessary Deaths?
Despite assertions by Myanmar's military government that it had warned people about the storm, critics contend the junta didn't do enough to alert the delta and failed to organize any evacuations, perhaps resulting in unnecessary deaths.
"Villagers were totally unaware," said 38-year-old Khin Khin Myawe, interviewed in the hard-hit delta town of Labutta.
"We knew the cyclone was coming but only because the wind was very strong. No local authorities ever came to us with information about how serious the storm was."
The India Meteorological Department, one of six regional warning centers set up by the World Meteorological Organization (WMO), began sending regular storm advisories April 27. The information appeared in Myanmar's state-run newspapers, on radio, and on television 48 hours ahead of the storm.
But the international advisories said nothing about a storm surge. And Myanmar, unlike its neighbors Bangladesh and India, has no radar network to help predict the location and height of surges, the WMO said.
There also wasn't any coordinated effort on the part of the junta to move people out of low-lying areas, even though information was available about the expected time and location of landfall.
"How is it possible that there was such a great death toll in the 21st century, when we have imagery from satellites in real time and there are specialized meteorology centers in all the regions?" said Olavo Rasquinho of the UN Typhoon Committee Secretariat.
Bangladesh has a storm-protection system that includes warning sirens, evacuation routes, and sturdy towers to shelter people—measures that were credited with limiting the death toll from last year's Cyclone Sidr to 3,100.
Atiq A. Rahman, executive director of the Bangladesh Center for Advanced Studies and a disaster specialist, said Myanmar's death toll would have been lower if it had had such a system.
"Taking some action to move people from affected areas would have dramatically helped reduce the numbers of causalities. Absolutely," Rahman said.
But junta officials and some weather experts said evacuating a large area with millions of residents would have been nearly impossible, given the poor roads, the distance to some villages, and the likely refusal of some families to leave.
"Even if they warned them, they can't go anywhere. Or they are afraid to go anywhere, because they are afraid of losing their property," said Lander, the University of Guam professor.
"It is debatable how much of a mass exodus you could have had."
Do you have any reports about the magnitude of damage in Thailand?
Nature 453, 84-88 (1 May 2008) | doi:10.1038/nature06921; Received 25 June 2007; Accepted 14 March 2008; Corrected 8 May 2008
Advancing decadal-scale climate prediction in the North Atlantic sector
The climate of the North Atlantic region exhibits fluctuations on decadal timescales that have large societal consequences. Prominent examples include hurricane activity in the Atlantic1, and surface-temperature and rainfall variations over North America2, Europe3 and northern Africa4. Although these multidecadal variations are potentially predictable if the current state of the ocean is known (5, 6, 7), the lack of subsurface ocean observations8 that constrain this state has been a limiting factor for realizing the full skill potential of such predictions (9). Here we apply a simple approach—that uses only sea surface temperature (SST) observations—to partly overcome this difficulty and perform retrospective decadal predictions with a climate model. Skill is improved significantly relative to predictions made with incomplete knowledge of the ocean state (10), particularly in the North Atlantic and tropical Pacific oceans. Thus these results point towards the possibility of routine decadal climate predictions. Using this method, and by considering both internal natural climate variations and projected future anthropogenic forcing, we make the following forecast:
Over the next decade, the current Atlantic meridional overturning circulation will weaken to its long-term mean; moreover, North Atlantic SST and European and North American surface temperatures will cool slightly, whereas tropical Pacific SST will remain almost unchanged.
Our results suggest that global surface temperature may not increase over the next decade, as natural climate variations in the North Atlantic and tropical Pacific temporarily offset the projected anthropogenic warming.
http://www.nature.com/nature/journal/v453/n7191/abs/nature06921.html
Ah, so they were Nagin'ed to death.
Good. Thanks for the report.
Gore makes the dishonest claim that it was CO2 that warmed the earth to get us out of these past 4 glaciation periods above (roughly every 100,000, the result of periodic changes in Earth's orbit and spin axis), yet one can clearly see that temperature increases (the blue line) actually PRECEEDED CO2 increases (red line) all throughout this 400,000 year time interval that Gore repeatedly refers to as the 'proof'. In fact, temperature increases precede CO2 increases by an of average 800 years! There really isn't any evidence in the geologic record that CO2 has caused significant global warming. Water vapor, by far, is the most important of the greenhouse gas, accounting for around 75-95% of the GH effect -another "inconvenient truth" Gore left out of his sci-fi flick.(BP = before present).
Why would salt water make a flood more dangerous?
Don't know.
When the clothes dry they’re very chafing.
Kind of puts Katrina into perspective.
Why would salt water make a flood more dangerous?
Destroys the ability to grow rice?
Not to mention sharks with frikin lazer beams on their heads.
do you water your plants with salt water?
do you think they’re talking about plants?
In a free society, people can access information to keep themselves informed. Most folks got themselves out of the path of Katrina, because they heard radio and TV reports about the coming storm.
The ruling junta in Burma didn't bother telling the people in the path of the storm of the danger coming their way, and they didn't have access to other information. The only folks who knew the storm was coming their way were the ones who had access to radio stations beamed into the country, on the order of like Radio Free Europe. The government just flat didn't care how many died.
im no expert, but im thinking theres probably a lot of rice on the menu there. are we not counting the damage or loss of farmable land as destruction?
http://unosat.web.cern.ch/unosat/asp/prod_free.asp?id=66
Estimated Total Population Living within Flood-Affected Areas, Myanmar 
International Charter Space and Major Disasters
Product ID: 1177 - 6 May, 2008 - English
GLIDE: TC-2008-000057-MMR
Product FOOTPRINT (LAT x LONG, WSG84 Geographic, decimal degrees)
TopLeft: 18.3 x 94.13
BottomRight: 15.6 x 97.75 This map provides an estimate of those potentially-affected people living directly within flooded areas of southern Myanmar. Red areas shown in the map represent standing flood waters identified from MODIS satellite imagery acquired on 5 May 2008 at a spatial resolution of 250m. Population estimates have been aggregated by township using the LandScan 2005 database. This flood detection is a preliminary analysis & has not yet been validated in the field. Map scale for A3: 1:1,200,000; Projection; UTM Zone 46 North; Datum: WGS 1984
Source(s):
Cyclone Data : NOAA, Un.of Hawai‘i, Tropical Storm Risk
GIS Data : USGS, NGA, ESRI, Respond/Keyobs
Population Data : LandScan 2005
Satellite Data : MODIS-Aqua & Terra
Imagery Date : 5 May & 15 April 2008
Resolution : 250m
Flood Analysis : UNOSAT (5 May 2008)
Map Production : UNOSAT (6 May 2008)
UNOSAT_Myanmar_Nargis_PopulationEstimate_Overview_Lowres_v1.pdf (1.1MB),
UNOSAT_Myanmar_Nargis_PopulationEstimate_Overview_Highres_v1.pdf (2.7MB)
And the ill-tempered sea bass.
I had read where Myanmar was an exporter of rice (to India and somewhere else). I imagine what is now left will stay home. Amazing and terrible the amount of land (and lives) that is gone looking at that earlier satellite photo.
the article is about how the flood managed to kill 100,000 or more people the other day. i don’t see how the saltiness of the water would’ve been a factor in that.
u dig?
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