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THE Volcano Thread Pt. 2

Indonesia's Mt. Sinabung:about to blow bigtime?

Unread postby dohboi » Fri 15 Nov 2013, 17:13:48

http://www.wired.com/wiredscience/2013/ ... tensifies/

http://weather.aol.com/2013/11/15/look- ... g-volcano/

Dangerous New Eruption at Sumatra's Sinabung Volcano
Officials worry the intensity of eruptions may be increasing


If so, what will the impact be on world weather?

ETA: More photo's/video of the eruption (with side benefit--best butt in Brazil! You couldn't make this stuff up.)

http://www.huffingtonpost.com/2013/11/1 ... 83180.html
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Re: Indonesia's Mt. Sinabung:about to blow bigtime?

Unread postby rollin » Fri 15 Nov 2013, 21:39:28

The impact on global weather is totally dependent upon the eruption severity and total mass of particulate ejecta into the atmosphere. If the eruption is large and long lasting it might have a temporary cooling effect. In the long term volcanoes add a small amount of CO2 to the atmosphere, small compared to current anthropogenic additions.

They also provide some very nice sunsets and effect the brightness of lunar eclipses. So unless this turns into a mega-volcano or several major volcanoes erupt in one year, the effects are small.

The steadily increased use of coal has had a much greater effect on global weather than volcanoes.
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Re: Indonesia's Mt. Sinabung:about to blow bigtime?

Unread postby ROCKMAN » Sat 16 Nov 2013, 08:03:17

A small side story to the thread: just saw a report of testing being done with a new filter system that would warn pilots when volcanic ash was potentially plugging their engines. Seemed the primary focus was the potential for Islandic volcanoes to once again disrupt EU air travel. Can't stop volcanoes so all we can do is try to adapt to them.
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Re: Indonesia's Mt. Sinabung:about to blow bigtime?

Unread postby dorlomin » Sat 16 Nov 2013, 13:02:07

dohboi wrote:http://www.wired.com/wiredscience/2013/11/eruption-at-sinabung-intensifies/

http://weather.aol.com/2013/11/15/look- ... g-volcano/

Dangerous New Eruption at Sumatra's Sinabung Volcano
Officials worry the intensity of eruptions may be increasing


If so, what will the impact be on world weather?

ETA: More photo's/video of the eruption (with side benefit--best butt in Brazil! You couldn't make this stuff up.)

http://www.huffingtonpost.com/2013/11/1 ... 83180.html
Has to breach the tropopause to have a major impact, that is around 17km at that latitude. It is currently only 6km.
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Possible new volcanic eruption in Iceland

Unread postby dohboi » Mon 18 Aug 2014, 16:24:15

Possible volcanic eruption under a glacier in Iceland .....

http://www.theguardian.com/world/2014/a ... -to-orange


Bardarbunga is Iceland's largest volcanic system, located under the ice cap of the Vatnajokull glacier in the southwest of Iceland. It is in a different range to Eyjafjallajokull.



"And there is really a huge earthquake storm at the moment. Iceland met office monitor earthquakes on the following link. http://en.vedur.is/earthquakes-and-volc ... rthquakes/

This could get interesting for air travel in Europe if winds are in the right direction."

"It could also seal the fate of the Arctic Sea Ice, if not this year then possibly in the coming years, with all that extra ash landing on the MYI."

PS:

Icelandic Met Office has moved the warning level for air traffic up to Orange level (see here). GPS measurement have confirmed magma movements inside Bárðarbunga volcano and this movement is fast.


http://www.jonfr.com/volcano/?p=4714

(Thanks to RaenorShine and viddaloo at neven's forum for this.)

Say it three times: Bartharbunga, Bartharbunga, Bartharbunga!

In Icelandic, ð represents a (usually apical) voiced alveolar non-sibilant fricative [ð̠],[3][4] similar to the th in English "them"


https://www.youtube.com/watch?v=zphUt_tp898
Last edited by dohboi on Mon 18 Aug 2014, 18:09:44, edited 1 time in total.
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Re: Possible new volcanic eruption in Iceland

Unread postby dolanbaker » Mon 18 Aug 2014, 16:29:35

Ronald Coase, Nobel Economic Sciences, said in 1991 “If we torture the data long enough, it will confess.”
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Re: Possible new volcanic eruption in Iceland

Unread postby dohboi » Mon 18 Aug 2014, 18:18:31

Thanks for the links, dol.
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Re: Possible new volcanic eruption in Iceland

Unread postby Synapsid » Mon 18 Aug 2014, 18:33:17

dohboi,

I thought Bartharbunga was the Italian actress who used to arrange parties for Berlusconi.

So much for BBC Online as a news source.
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Re: Possible new volcanic eruption in Iceland

Unread postby GHung » Mon 18 Aug 2014, 18:52:01

Kawabunga Bardarbunga!

Love this stuff. Thanks, doh!
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Re: Possible new volcanic eruption in Iceland

Unread postby ROCKMAN » Mon 18 Aug 2014, 18:58:41

Just saw a special on volcanoes: on any given day about 20 volcanoes are erupting to some degree.
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Re: Possible new volcanic eruption in Iceland

Unread postby dohboi » Mon 18 Aug 2014, 19:05:17

Yeah, but how many are called Barthabunga! (Or Bardabunga, or however the hell those damn Icelanders pronounce their crazy f'n language! :lol: )
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Re: Possible new volcanic eruption in Iceland

Unread postby ROCKMAN » Mon 18 Aug 2014, 20:57:32

Dohboi - Actually their language isn't that complex. Years ago an Icelander explained it was something of a national prank: they intentionally made up unpronouncible words just to screw with the rest of the world. I believed him since I'm sure Mr. Sthritaichuinasm Figauegertuity would never lie to me.
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Re: Possible new volcanic eruption in Iceland

Unread postby dohboi » Mon 18 Aug 2014, 21:01:39

I was kind of kidding. I'm kind of teaching ancient Icelandic to an eager and sharp student, who, however, is now willing so far to put in the requisite time to learn the finer points. Lot's of great lit!

Here's another piece on this potential eruption:

The risk of an exploding glacier is heating up in Iceland

Will lava soon hit glacier ice, unleashing an explosion that would spew ash and steam high in the atmosphere?

The Icelandic Meteorology Office (IMO) thinks that the probability of such an event in their country has increased. Through August 16, 2014, the risk level had been at code green – a “background, non-eruptive state.”

The IMO has upgraded the risk twice in the last two days, on August 17 to code yellow, and early in the day on August 18 to code orange, indicating that a “volcano shows heightened or escalating unrest with increased potential of eruption.


http://earthsky.org/earth/the-risk-of-a ... in-iceland
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Re: Possible new volcanic eruption in Iceland

Unread postby vox_mundi » Tue 19 Aug 2014, 10:54:37

Bárðarbunga pronounciation?

Emphasise first vowel. á as 'ow' in owl. ð as th in Thine. u as oo. g as in gun. So b-OW-r-tha-boon-ga. Rolled R, like in Spanish or Swedish. “bOWr-thahr-boonga” gets you pretty close to the correct pronunciation. (Stress only the first syllable, and use an unaspirated th as in “this”, not an aspirated th as in “think”. For extra credit roll the r at the front of your tongue as in Spanish.)

Bárðar was one of the early viking settlers of Iceland and is considered the volcano's namesake, bunga means bulge or bump. So the name of the volcano translates to Bárður's Bulge. (We're talking anatomical here - i.e. ...hung like a horse... Bárðar, what a well-endowed bulge ye have)

Ah Iceland's at it again. Who needs a military when you have a volcano that can cripple the aviation industry of Europe?

"Give us money or we continue poking the volcano"
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Re: Possible new volcanic eruption in Iceland

Unread postby dohboi » Tue 19 Aug 2014, 11:18:28

+10!
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Re: Possible new volcanic eruption in Iceland

Unread postby Timo » Tue 19 Aug 2014, 12:37:01

Purely hypothetical question here. It's not even a suggestion, but rather a remotely possible connection between rising surface air temperatures, thawing permafrost, and subterranean magma flows/ejections. Bear with me.

We all know that surface temperatures are rising. We all know that permafrost is thawing. Most of us have heard/read that the Antarctic continent is melting, not from increased surface temperatures, but from increased temperatures in its underlying magma chamber. We've also witnessed a few hefty volcanic eruptions lately in Sumatra, Chile, and even New Zealand, and now, too, in Iceland. Pair that with the literal melting of asphalt roads inside Yellowstone National Park recently, and a near doubling of the known size of that supervolcano, and it all gets that little mousewheel churning inside my head. As the surface temperatures rise, thus melting the permafrost, that activity opens up new vents for subterranean methane, thus releasing pressures that have existed within the earth's crust for millenia. That release of pressures, therefore, theoreticaly can have unknown effects on the next layer down within the earth's crust, where the magma flows. So, adding all these pieces together, is it possible that global warming could unleash an increase in volcanic activity and earthquakes, along with increased air surface temperatures? Could we be heating up the earth, both inside and out?
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Re: Possible new volcanic eruption in Iceland

Unread postby dohboi » Tue 19 Aug 2014, 12:47:48

Yes.

Locally, at least--no question about it. It happened on Iceland already, long ago. This from expert and author on the subject, Bill McGuire:

Twenty thousand years ago, Iceland was entirely covered by a layer of ice that averaged close to a kilometer in thickness. Around 15-16,000 year ago, planetary warming triggered rapid melting of the glaciers, reducing the load acting on the volcanoes beneath and on the underlying asthenosphere.

By 12,000 years ago unloading was sufficiently advanced to trigger a spectacular response. Over a period of 1500 years or so, the volcanic eruption rate jumped by between 30 and 50 times, before falling back to today's level.

This volcanic rejuvenation was in part a reflection of the release of magma held ready and waiting, within and beneath the volcanoes themselves, but mainly testament to a huge increase in the supply of fresh magma from deeper within the Earth. Such was the load reduction due to the rapid loss of ice mass, that the depressed lithosphere quickly bounced back by as much as half a kilometer, dramatically reducing the pressures in the asthenosphere and triggering a 30-fold jump in magma production.


(Thanks to ASLR at neven's forum for this quote.)

You might want to check out his book:

In his latest book, Waking the Giant,he argues temperature change brought about by global warming could release pressure from melting ice caps (through post-glacial rebound) and trigger quakes and volcanic eruptions...


http://en.wikipedia.org/wiki/Bill_McGui ... ologist%29
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Re: Possible new volcanic eruption in Iceland

Unread postby dolanbaker » Tue 19 Aug 2014, 14:15:38

Don't forget that Iceland is sitting on two spreading tectonic plates and most of the volcanic activity is magma filling in the "void" caused by the spreading.
Ronald Coase, Nobel Economic Sciences, said in 1991 “If we torture the data long enough, it will confess.”
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Re: Possible new volcanic eruption in Iceland

Unread postby Timo » Tue 19 Aug 2014, 14:27:21

OMFG! Fun times, indeed! I suppose it's also entirely possible that Yellowstone will erupt in North Dakota due to all of that fracking activity distrupting the pressures of the earth's crust 500 miles west of where that supervolcano is actually located. That volume of natural gas and an underlying supervolcano would make for one heck of a made-for-tv disaster movie! Volcano on the High Plains! Run southwest! As fast as you can!
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Re: Possible new volcanic eruption in Iceland

Unread postby pstarr » Tue 19 Aug 2014, 15:15:54

Timo wrote:OMFG! Fun times, indeed! I suppose it's also entirely possible that Yellowstone will erupt in North Dakota due to all of that fracking activity distrupting the pressures of the earth's crust 500 miles west of where that supervolcano is actually located. That volume of natural gas and an underlying supervolcano would make for one heck of a made-for-tv disaster movie! Volcano on the High Plains! Run southwest! As fast as you can!
Sounds like a screenplay Timo. Graeme is the under appreciated envrio who warns the townspeople of the impending doom. And ROCK is the evil oil exec. Then the scientist is killed by the oil cabal. And Graeme rescues ROCK (because Graeme is more moral) And everybody else runs to Mexico . . . except the border is closed off . . . and the Norto Americanos die.

The simple people of Sudo Americanas, the campesina and campesino, say 'told you so' and 'no fracting here' and the 'God will fling arros con pointos and you will die, Norto Americans'

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