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Iceland Volcanos: Myths and Misunderstandings

 
Leeloominai
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04/17/2010 08:09 PM
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Iceland Volcanos: Myths and Misunderstandings
I have been seeing an increase in DOOM threads popping up on GLP about the recent volcanic eruption in Iceland all the way from, "OMG we're all doomed, the next ice age will
begin with this eruption" to "It's all a hoax, I don't see any ash"(ashtards!) so I would like to clear up a bunch of misinfo, misunderstandings, etc. So here we go...

Icelandic Volcanoes:
Iceland is one of the most active volcanic regions on Earth. It is estimated that 1/3 of the lava erupted since 1500 A.D. was produced in Iceland. Iceland has 35 volcanoes that have erupted in the last 10,000 years. On average, a volcano erupts there about every 5 years.

Eyjafjallajökull:
[link to en.wikipedia.org]
[link to en.wikipedia.org]
[link to www.volcano.si.edu]
For anyone confused about which Icelandic volcano is erupting right now, it is Eyjafjallajökull. Like other volcanos in Iceland this one is under a glacier of the same name. Although it is subglacial it's classified as a stratovolcano.
This current eruption is likely to be considered a VEI 3 event although it's always possible it could change if it continues to intensify. According to data by geologists and vulcanologists, it has erupted 4 times in the last 1100 years including the current eruption which began on March 20th of this year. The present eruption can last anywhere from days to months to years. The last time it erupted in 1821 it took almost 2 years to subside.
The current ash cloud is too high to be a risk to people on the ground and too thin to be seen, although it is likely to be causing sunsets to be redder because of the way the volcanic particles diffract the sunlight.

VEI(Volcanic Explosivity Index):
[link to en.wikipedia.org]
[link to volcanoes.usgs.gov]

Volcanic Ash:
[link to en.wikipedia.org]
Volcanic ash is like highly abrasive talcum powder. It's made of sharp fragments of rock that are capable of eroding plastic, metal and glass. Among other things, the fine particles can block fuel nozzles and stick to the turbine blades of aircraft engines causing them to stall.

There seems to be some confusion about which Icelandic volcano caused major doom in 1783. Some have said Katla and some have also mentioned Hekla but it is actually the Laki fissure eruption that is associated with the Mississippi River freezing, poison gas clouds over Europe and killing of up to 25% of the population of Iceland. Here is more info about all 3 of these volcanic systems.

Laki:
[link to en.wikipedia.org]
[link to iceland.vefur.is]
[link to www.volcano.si.edu]
Laki is a fissure in the south of Iceland that is part of a volcanic fissure system centering on the Grímsvötn volcano and including the Thórdarhyrna volcano. The Grímsvötn volcano is a Caldera. This volcanic system last erupted in 1783 for a period of 8 months and is rated a VEI 6 event, the eruption classification being Plinian/Ultra-Plinian. You can read more about the 1783 event in the link above or you can Google it.

*Can't find a webcam for this one*

Katla:
[link to en.wikipedia.org]
[link to iceland.vefur.is]
[link to www.volcano.si.edu]
The Katla volcano under the glacier Mýrdalsjökull which lies East of Eyjafjallajökull, is a subglacial volcano. According to records it has been set off by Eyjafjallajökull after the last 3 eruptions. Something to note however is that Katla has also erupted on it's own. In fact it has erupted 16 times since 930, the last major eruption having ocurred in 1918. The 1918 eruption was rated a VEI 5 event.

Katla Webcam: [link to www.ruv.is]

Hekla:
[link to en.wikipedia.org]
[link to iceland.vefur.is]
[link to www.volcano.si.edu]
Hekla is a composite or stratovolcano located in the south of Iceland and is Icelands most active volcano, the last eruption being in 2000. over 20 eruptions have occurred in and around this volcano since 874. Hekla VEI events have ranged from 3-5 historically. One of the largest since Iceland was settled is the Hekla 3 eruption in 1104 BC which is considered to be a VEI 5 event. The last eruption in 2000 was a VEI 3 event and was relatively short, lasting only 11 days. In a 1947 eruption ash fell as far away as Russia.

Hekla Webcam: [link to www.ruv.is]

All of these volcanoes show signs of possible eruption again in the near future. While they can all produce problems like what we are seeing with the present eruption, the main threat from Iceland would be Laki. The current eruption is minor in comparison.

Complete list of Iceland Volcanoes and their historical eruptions:
[link to en.wikipedia.org]

Large Holocene Eruptions:
[link to www.volcano.si.edu]
Note that that these are all > 4 VEI so Eyjafjallajökull, Katla and Hekla do not appear on this list. Hope this gives some perspective to the present eruption. For peeps in the USA, Mt. St. Helen's eruption in 1980 was a VEI 5 event.

Hoax? Ashtards?
There have been threads posted that say this is all a hoax since alot of peeps in Europe are not seeing any ash but rather beautiful blue skies. Rubbish! As noted above, the threat from ash is to airplanes not the majority of peeps on the ground. The ash is in the upper atmosphere where it can easily disrupt plane engines and pose quite a threat to air traffic. Here's a good Q&A about this issue and includes an answer to the question of why volcanic ash has not caused such a massive disruption of air traffic before:
[link to news.discovery.com]
And to the question of effects on air traffic from past volcanos including the Pinatubo eruption?
"...at least 10 Jumbo jets and 10 DC-10s suffered multiple engine failures in 1991 from ash from Mt. Pinatubo in the Philippines."

On the ground most people will not be able to see the ash since it has diluted so much, however some who have asthma and other breathing difficulties can be effected by it. It also depends where you are in the path of the ash cloud. Some areas are definitely seeing it accumulate on roads, cars, etc. Again, not everyone in Europe is necessarily going to be effected.

There are plenty of links to show where the ash cloud is blowing and who it will effect the most at any given time so just Google it or search GLP threads. Here's one link with an animation showing the movement of the ash cloud: [link to www.esa.int]
The more the eruption intensifies the more it will cause problems but who it will effect is up to where the jet stream carries the ash.

To the person who actually posted in a thread that the Eyjafjallajökull eruption is a hoax because of differing cloud colors observed, i.e. white and black clouds, the white clouds are the steam rising from the melting ice, basically the magma & water interacting(phreatomagmatic), and the black/grey clouds are from the magma or molten rock. It's very common for a large explosive eruption to have magmatic and phreatomagmatic components. Another geologist characterised it as a phreatoplinian style eruption.

While it is absolutely amazing to watch and it's certainly causing havoc for air traffic etc, this is not an uncommon event.
[link to www.earthmountainview.com]

Even if Katla were to erupt next, which is somewhat likely, it still would not be major doom like the Laki event or, God forbid, a Yellowstone supervolcano style event. It is most certainly NOT going to bring on a mini ice age. Let's reduce the woo-woo a bit and try and keep it all in perspective. hf


***********Updated to add more links************

Live Volcano Webcam Threads by DailyDoom & AC 991571:
Thread: Live Volcano Web Cams And More!
Thread: Live Volcano Web Cams

Real-time aircraft traffic plus ash cloud movement:
(thanks to AC 944834)
[link to www.radarvirtuel.com]

some good reference maps:
[link to hraun.vedur.is]
[link to hraun.vedur.is]

Last Edited by ºLeelooº on 01/12/2011 09:33 AM
BIG Badaboom!

"it's not only at our doorstep, some moran has lit it on fire!" ~Anonymous Coward 919411 talking about doom
Anonymous Coward
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04/17/2010 08:15 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
good info.. but why do you have to spoil it for us.. haha j/k. I am sure half the doomtards are somehow hoping this thing magically turns into some type of VEI 8 erruption
Anonymous Coward
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04/17/2010 08:18 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
So then why are NATO fighter jets cruising european skies?

whatever
Leeloominai (OP)

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04/17/2010 08:19 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
good info.. but why do you have to spoil it for us.. haha j/k. I am sure half the doomtards are somehow hoping this thing magically turns into some type of VEI 8 erruption
 Quoting: Anonymous Coward 702728


Teehee. Hey I'm all for doom, but I like my doom to be accurate. wink

Last Edited by ºLeelooº on 04/17/2010 08:19 PM
BIG Badaboom!

"it's not only at our doorstep, some moran has lit it on fire!" ~Anonymous Coward 919411 talking about doom
Munchaab

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04/17/2010 08:32 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
Bravo!

It is nice to see an erudite and well researched thread on this topic for a change.

I keep reading crap that I want to correct but then realise... I could spend my time more wisely! lol

Thanks for this and a couple of links I've not seen yet! hf
I want the use of ALL of my brain!
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Leeloominai (OP)

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04/17/2010 09:08 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
Bravo!

It is nice to see an erudite and well researched thread on this topic for a change.

I keep reading crap that I want to correct but then realise... I could spend my time more wisely! lol

Thanks for this and a couple of links I've not seen yet! hf
 Quoting: Munchaab


Thanks, I appreciate it! hf Isn't it funny that I got a 1 star vote so far? Ah well.
I'm home with sick kids, it's raining outside, I'm volcano watchin...so I figured hey why not! tounge
BIG Badaboom!

"it's not only at our doorstep, some moran has lit it on fire!" ~Anonymous Coward 919411 talking about doom
Anonymous Coward
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04/18/2010 12:15 AM
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Re: Iceland Volcanos: Myths and Misunderstandings
bump for truth
Anonymous Coward
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04/18/2010 12:17 AM
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Re: Iceland Volcanos: Myths and Misunderstandings
MYTH - MAN RULES EVERYTHING ON EARTH

FACT - THE VOLCANO DOESN'T ACCEPT CASH PAYMENTs

hahahahahahah

sorry FEDERAL RESERVE
Anonymous Coward
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04/18/2010 06:37 AM
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Re: Iceland Volcanos: Myths and Misunderstandings
bump
OTOC

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04/18/2010 06:43 AM
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Re: Iceland Volcanos: Myths and Misunderstandings
Great post... Although I'm certain so many people will just ignore everything that is said.

I expect to see "Government Shill" come up soon.
Solar Storms, Your basic guide: Thread: Solar Storms, Your Basic Guide.

AC 1082864 - "This post was sponsored by OTOC. If you watch any doom on November 4, watch katla!"

Yellowstone - 2024, some time after june.
Leeloominai (OP)

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04/18/2010 10:41 AM
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Re: Iceland Volcanos: Myths and Misunderstandings
Great post... Although I'm certain so many people will just ignore everything that is said.

I expect to see "Government Shill" come up soon.
 Quoting: OTOC


Thanks! hf
BIG Badaboom!

"it's not only at our doorstep, some moran has lit it on fire!" ~Anonymous Coward 919411 talking about doom
American Jedi
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04/18/2010 10:56 AM
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Re: Iceland Volcanos: Myths and Misunderstandings
So then why are NATO fighter jets cruising european skies?

whatever
 Quoting: Anonymous Coward 945661



Because they are military aircraft, some with adaptations for desert environments. Moreover, if a military crew goes down they don't usually have 150+ passengers on board.

There's tinfoil hatters then there's tinfoil class A encapsulated headcases. "It's all a conspiracy! My water gets shut off [for non-payment], it's the Illuminati!"
Victoria Ecouter
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04/18/2010 11:10 AM
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Re: Iceland Volcanos: Myths and Misunderstandings
For the last few nights my husband and I have been seeing an ash-like substance when we turn our backyard light on. I should film it tonight. I have no idea where it's coming from. We live in the middle of the U.S. My husbands co-worker also saw ash floating around when he picked up his kid from daycare. You can really see it at night with the light shining on it.
Anonymous Coward
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04/18/2010 05:42 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
For the last few nights my husband and I have been seeing an ash-like substance when we turn our backyard light on. I should film it tonight. I have no idea where it's coming from. We live in the middle of the U.S. My husbands co-worker also saw ash floating around when he picked up his kid from daycare. You can really see it at night with the light shining on it.
 Quoting: Victoria Ecouter 713127


might be tree pollen, this time of the year.
Anonymous Coward
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04/18/2010 06:00 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
For the last few nights my husband and I have been seeing an ash-like substance when we turn our backyard light on. I should film it tonight. I have no idea where it's coming from. We live in the middle of the U.S. My husbands co-worker also saw ash floating around when he picked up his kid from daycare. You can really see it at night with the light shining on it.


might be tree pollen, this time of the year.
 Quoting: Anonymous Coward 946271



more likely chemtrail debri
freeone

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04/18/2010 06:56 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
Thanks for doing the research so I can just search here and enjoy my beer.
Leeloominai (OP)

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04/18/2010 07:04 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
Thanks for doing the research so I can just search here and enjoy my beer.
 Quoting: freeone


Thanks! Just added a couple more links.
BIG Badaboom!

"it's not only at our doorstep, some moran has lit it on fire!" ~Anonymous Coward 919411 talking about doom
Victoria Ecouter
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Re: Iceland Volcanos: Myths and Misunderstandings
For the last few nights my husband and I have been seeing an ash-like substance when we turn our backyard light on. I should film it tonight. I have no idea where it's coming from...


might be tree pollen, this time of the year.
 Quoting: Anonymous Coward 946271


That is a good point. It would be pretty silly to film tree pollen. Although there may be some pollen fetishists that may enjoy it.

Actually I looked around and found a photo after the eruption of Mt. St. Helens in 1980. It looks a lot like the sky looked in my area today. Here is the link:
[link to www.panoramio.com]
Anonymous Coward
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04/18/2010 09:09 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
I have heard from 2 friends on Facebook and they say the smoke/dust is really bothering them - their eyes, their stomach, their throat, all over everything outside and they feel very tired and sick

Any one who says it won't bother people cuz it's up too high is lying, the same way they lied when they said it was safe at ground zero and environs after 9-11.

Doesn't sound safe to me.
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04/18/2010 09:10 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
Good work, honey, it is greatly appreciated. I enjoyed the links and the gentle way you made it clear that this is all just part of the program.

Hope you feel better soon!
Anonymous Coward
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04/18/2010 09:11 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
The most daft and ridiculous thing ever attempted as an excuse if you ask me
pro lurker

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04/18/2010 09:12 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
seems to me its just more force fed garbage, i dont believe a word anyone says about anything anymore.

Last Edited by Search Function on 04/18/2010 09:12 PM
“A great deal of intelligence can be invested in ignorance when the need for illusion is deep.”
Accidental Stoner
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04/19/2010 07:11 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
"There are plenty of links to show where the ash cloud is blowing and who it will effect the most at any given time so just Google it or search GLP threads. Here's one link with an animation showing the movement of the ash cloud: [link to www.esa.int]
The more the eruption intensifies the more it will cause problems but who it will effect is up to where the jet stream carries the ash. "


Now lemmesee...how quickly would this layering process happen?
Is it instantaneous with the beginning of the eruption, as the smoke shoots up?

So, in other words, for the Finnish Ilmavoimat to be telling the truth about their
F-18s being damaged on Thursday morning, while flying in "Northern
Finland", the particles specifically dangerous for jet turbines must have
assembled in a jetstream layer, taken a much more Northernly route than
the visible ashcloud - which apparently was nowhere near Northern Finland
on said Thursday morning, rather just nudging SW Norway - to end up in their
engines while playing flying circus over Lapland?

scratching

Mmm'kay.
Guess it's possible.
If you say so.
What do I know :)
Sounds...wrong, somehow.



Peace.
Accidental Stoner
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04/19/2010 07:16 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
Hm, in that case, does the jetstream-powered layer of invisible particles
specifically dangerous for jet engines spreads evenly over all of Europe,
while the...ahem...visible one stays more concentrated?

Difficult shit, one can easily see how these myths and misunderstandings
arise.
IscopeU

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04/19/2010 09:23 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
Bumpy bump bumpy

Thank you for this info.
[link to video.godlikeproductions.com] The weird video corner.

“Our Earth is degenerate in these later days; there are signs that the world is speedily coming to an end; bribery and corruption are common; children no longer obey their parents; every man wants to write a book and the end of the world is evidently approaching.” (-Sumerian clay tablet, 2800 BCE)
ºLeelooº (OP)

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04/19/2010 11:05 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
Hm, in that case, does the jetstream-powered layer of invisible particles
specifically dangerous for jet engines spreads evenly over all of Europe,
while the...ahem...visible one stays more concentrated?

Difficult shit, one can easily see how these myths and misunderstandings
arise.
 Quoting: Accidental Stoner 767025



Hey I'm not the scientist, you can easily do your own research on how volcano ash spreads, dissipates in the upper atmosphere, etc etc etc. So Google it. I have less time than I did over the weekend to research and post this stuff now that my kids aren't sick.

Btw, this link that I added in the updated section earlier has real-time air traffic plus the ash cloud.
[link to www.radarvirtuel.com]

I can tell you that I read that some of these models of the ash cloud were/are incorrect. Not surprising really. Humans are not infallible.
Do I think they over reacted? Yah, probably. But, better to be safe than sorry, yes? I would imagine the next time something like this arises the reaction may be a little different.
BIG Badaboom!

"it's not only at our doorstep, some moran has lit it on fire!" ~Anonymous Coward 919411 talking about doom
ºLeelooº (OP)

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04/19/2010 11:05 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
Bumpy bump bumpy

Thank you for this info.
 Quoting: IscopeU


hf
BIG Badaboom!

"it's not only at our doorstep, some moran has lit it on fire!" ~Anonymous Coward 919411 talking about doom
Anonymous Coward
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04/19/2010 11:11 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
Bumpy bump bumpy

Thank you for this info.


hf
 Quoting: ºLeelooº


bump

Thank you . hf
Anonymous Coward
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04/19/2010 11:12 PM
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Re: Iceland Volcanos: Myths and Misunderstandings
OP your putting to many facts into the story..


Party Popper..


DOOOOM is happening...
Accidental Stoner
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04/20/2010 05:49 AM
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Re: Iceland Volcanos: Myths and Misunderstandings
Hey I'm not the scientist, you can easily do your own research on how volcano ash spreads, dissipates in the upper atmosphere, etc etc etc. So Google it. I have less time than I did over the weekend to research and post this stuff now that my kids aren't sick.

Btw, this link that I added in the updated section earlier has real-time air traffic plus the ash cloud.
[link to www.radarvirtuel.com]

I can tell you that I read that some of these models of the ash cloud were/are incorrect. Not surprising really. Humans are not infallible.
Do I think they over reacted? Yah, probably. But, better to be safe than sorry, yes? I would imagine the next time something like this arises the reaction may be a little different.
 Quoting: ºLeelooº


Yes of course.
I'm just too lazy, I admit, I creep to the cross and I confess.

OS and browser too old, I'm afraid, can't seem to load the radarvirtuel thing :(

Yeah, I guess the dangerous/invisible vs visible cloud ratio is pretty heavy then,
since very few people have seen the visible cloud, but the invisible one affects
all of Europe?

What's interesting here is, of course, if such a thing as bona fide "overreaction" is involved at all...

Personally, I have no problem with no flying.
Au contraire, I thoroughly enjoy the clear blue sky!
cool2


Peace.
Anonymous Coward
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04/20/2010 05:55 AM
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Re: Iceland Volcanos: Myths and Misunderstandings
yes very good info, thanks.
However this info has not stopped the doom at all. As we can see so far the doom is on (for airlines at least).

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