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Butterfly Effect? Maybe not, but pretty amazing stuff.

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Butterfly Effect? Maybe not, but pretty amazing stuff.

Old 10-10-06, 02:31 PM
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Butterfly Effect? Maybe not, but pretty amazing stuff.

http://www.cnn.com/2006/TECH/science....ap/index.html

from CNN

Study: Dust may quell hurricanes

WASHINGTON (AP) -- Dust storms swirling out of Africa's Sahara Desert may help reduce hurricane activity in the Atlantic Ocean, a new study suggests.

The findings aren't conclusive, but researchers led by Amato T. Evan of the University of Wisconsin-Madison found that years with more African dust had fewer tropical storms and years with less dust had more storms.

The study is reported in Tuesday's issue of Geophysical Research Letters.

Evan and his colleagues used satellite images to study the amount of African dust blown out over the Atlantic for the years 1982-2005 and compared that with tropical storm activity.

"While we cannot conclusively demonstrate a direct causal relationship, there appears to be a robust link between tropical cyclone activity and dust transport," they concluded.

"People didn't understand the potential impact of dust until satellites allowed us to see how incredibly expansive these dust storms can be," Evan said in a statement. "Sometimes during the summer, sunsets in Puerto Rico are beautiful, because of all the dust in the sky -- well that dust comes all the way from Africa."

Co-author Jonathan Foley, also of the University of Wisconsin, added: "These findings are important because they show that long-term changes in hurricanes may be related to many different factors."

Several recent studies have indicated a potential relationship between warming sea surface temperatures and increases in either the strength or number of tropical storms.

Other researchers have suggested a link between rain in North Africa and an increase in tropical storms, resulting from more easterly wave disturbances entering the Atlantic from Africa.

Dust blowing off the Sahara can spread widely and it is not unusual for it to be detected in the Caribbean and Florida.

The researchers suggest three possible ways the dust can affect storms:

# By introducing dry air into a storm it causes downdrafts, blocking the rising streams of air needed to fuel a storm.

# Midlevel winds accompanying the Saharan air cause wind shear, a change in direction with altitude that prevents rising currents from growing into storms.

# Warmth absorbed by the dust in the air can stabilize conditions, again blocking rising air.
Old 10-10-06, 03:08 PM
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What is butterfly effect?
Old 10-10-06, 03:17 PM
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its when you can time travel into your own past and change events.
Old 10-10-06, 03:19 PM
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The butterfly effect is a scientist's way of saying that small things can make a big difference. The classic metaphor is that of a butterfly flapping its wings in Brazil setting off a chain of events leading to a hurricane in Texas.
Old 10-10-06, 03:23 PM
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Originally Posted by Save Ferris
its when you can time travel into your own past and change events.
only when Ashton Kutcher is involved.

Butterfly effect is a concept based on the idea of a butterfly flapping it's wings somewhere that sets off a chain rection of events that could have ramifications halfway around the world.

I don't know where the time travel aspect came into fruition. But it's not really about that. Same concept I guess, if you could go back in time and make one small change, it could have major consequences down the road.
Old 10-10-06, 03:24 PM
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It's not the same as a ripple effect? Because this description "The butterfly effect is a scientist's way of saying that small things can make a big difference." sounds like it fits to ripple effect.
Old 10-10-06, 03:26 PM
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Originally Posted by monkeyboy
I don't know where the time travel aspect came into fruition.
Probably from the Ray Bradbury story "A Sound of Thunder" where a time traveller accidentally kills a butterfly and vastly changes the course of history.
Old 10-10-06, 03:30 PM
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I'm not certain, but doesn't "ripple effect" deal with an event in one location causing or altering similar sized events in other locations? If I'm not mistaken, the "butterfly effect" differs in that the remote event is much magnified in scope and power.
Old 10-10-06, 03:39 PM
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Originally Posted by Groucho
Probably from the Ray Bradbury story "A Sound of Thunder" where a time traveller accidentally kills a butterfly and vastly changes the course of history.
I thought that was a Simpsons episode - not that the Simpsons would ever stoop so low as to rip off an idea ..
Old 10-10-06, 03:39 PM
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Originally Posted by AGuyNamedMike
I'm not certain, but doesn't "ripple effect" deal with an event in one location causing or altering similar sized events in other locations? If I'm not mistaken, the "butterfly effect" differs in that the remote event is much magnified in scope and power.
That's my understanding. The BE has large consequences all stemming from a very small incident. A RE is just similar events spreading out from one incident.
Old 10-10-06, 03:43 PM
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WASHINGTON (AP) -- Dust storms swirling out of Africa's Sahara Desert may help reduce hurricane activity in the Atlantic Ocean, a new study suggests.
They have it completely backwards! Increased hurricane activity has created more moisture in the atmosphere resulting in fewer sand storms due to higher moisture in the deserts.
Old 10-10-06, 03:50 PM
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Originally Posted by Bronkster
I thought that was a Simpsons episode - not that the Simpsons would ever stoop so low as to rip off an idea ..
The Simpson's episode was a parody of the Bradbury story.
Old 10-10-06, 03:52 PM
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gasp.
Old 10-10-06, 03:54 PM
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Originally Posted by Bronkster
They have it completely backwards! Increased hurricane activity has created more moisture in the atmosphere resulting in fewer sand storms due to higher moisture in the deserts.
Increased hurricanes in the Atlantic cause butterflies to drop out of the sky in Thailand!
Old 10-10-06, 04:29 PM
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The problem is, the weather forecasters can't find the butterflies that are doing all the flapping, and make them stop it!
Old 10-10-06, 05:15 PM
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I say we kill the butterflies!
Old 10-10-06, 05:22 PM
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Sounds like a rippling butterfly affect.
Old 10-10-06, 06:19 PM
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Dust, shmust!

Anyone who says hurricanes are caused or affected by anything but global warming are paid lackeys of Exxon.
Old 10-11-06, 09:02 AM
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That's what I was waiting for! [moving to politics]

Old 10-11-06, 10:11 AM
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Originally Posted by Mrs. Danger
The problem is, the weather forecasters can't find the butterflies that are doing all the flapping, and make them stop it!
Not the forecasters, it's the GUB'MINT!

Fucking George W. Bush!
Old 10-11-06, 10:18 AM
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Soooo based on the concept of the "butterlfy effect"....My windbreaking can destroy whole nations.

Just call me Destroyah...
Old 10-11-06, 11:01 AM
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Now that you have posted that, the feds will want to keep you undercover...
Old 10-11-06, 11:43 AM
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Where does the caterpillar come in?
Old 10-11-06, 12:06 PM
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Originally Posted by Thor Simpson
Where does the caterpillar come in?
Usually in the lady caterpillar.

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