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Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...

 
TBar1984
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10/24/2012 11:34 AM
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Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
Another case of New Instruments measuring 'old' phenomena.
Earth's Magnetosphere Behaves Like a Sieve
ScienceDaily (Oct. 24, 2012)
ESA's quartet of satellites studying Earth's magnetosphere, Cluster, has discovered that our protective magnetic bubble lets the solar wind in under a wider range of conditions than previously believed...In fact, it's very hard to imagine a situation where solar wind plasma could not leak into the magnetosphere, since it is not a perfect magnetic bubble." The findings confirm theoretical predictions and are reproduced by simulations presented by the authors of the new study. "The solar wind can enter the magnetosphere at different locations and under different magnetic field conditions that we hadn't known about before," says co-author Melvyn Goldstein, also from Goddard Space Flight Center..."

More, [link to www.sciencedaily.com]
TBar1984  (OP)

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10/24/2012 11:54 AM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
Here's the ESA site with info on 'Cluster'.
Earth’s magnetosphere behaves like a sieve & Related articles [link to www.esa.int]
Cluster overview, "Cluster is a constellation of four spacecraft flying in formation around Earth. They relay the most detailed information ever about how the solar wind affects our planet in three dimensions. The solar wind (the perpetual stream of subatomic particles given out by the Sun) can damage communications satellites and power stations on Earth. The original operation life-time of the Cluster mission ran from February 2001 to December 2005. However, in February 2005, ESA approved a mission extension from December 2005 to December 2009..."
[link to www.esa.int]
Anonymous Coward
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10/24/2012 12:05 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
many thanks for this OPbumppeace
pray_Italy

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10/24/2012 12:31 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
Where can I find a more complete animation showing this "bigger" ?

[link to iswa.gsfc.nasa.gov]


I remember having it seen in the past, but cannot find it anymore.... magnetosphere/magnetopause animation.

Ty
Anonymous Coward
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10/24/2012 12:38 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
is this the explanation for whats coming in from behind?? thank you tbar(:
TBar1984  (OP)

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10/24/2012 12:44 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
Here's an older article demonstrating you don't need a 'Storm' to experience the phenomena.

Details of Solar Particles Penetrating the Earth’s Environment Revealed
3 October 2006 [link to www.esa.int]
"Although intermittent reconnection has been observed in the past, this was one of the longest series of continuous observations ever taken of a magnetic reconnection region in the Earth’s magnetosphere. Perhaps most surprising is that 8 May 2004 was just relatively a normal day for the Earth’s magnetic field. There were no large magnetic storms on Earth, or spectacular aurorae to fill the night sky. However, Cluster and Double Star revealed that energetic particles from the Sun were blasting their way through the Earth’s magnetic shield and penetrating the Earth’s environment..."
Anonymous Coward
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10/24/2012 01:04 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
i know this doesn't conform to the post right now but to one you recently posted about.. anyway, from what direction will we see the comet sion come from? east to west? ty!!
Anonymous Coward
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10/24/2012 01:04 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
i know this doesn't conform to the post right now but to one you recently posted about.. anyway, from what direction will we see the comet sion come from? east to west? ty!!
 Quoting: Anonymous Coward 3181070

located in fl, btw.. if that matters..
TBar1984  (OP)

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10/24/2012 02:24 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
i know this doesn't conform to the post right now but to one you recently posted about.. anyway, from what direction will we see the comet sion come from? east to west? ty!!
 Quoting: Anonymous Coward 3181070

located in fl, btw.. if that matters..
 Quoting: Anonymous Coward 3181070

Viewing it from Tampa, it's going to be passing along pretty close to the ecliptic on it's way in. Right now it's coming up on Pollux & Castor. In fact, after it gets very close to Castor in January, it's going to stay pretty close to Castor until they both pass the Sun in July. Then it will move back the way it came, away from the Sun, and pass very close to Mars in Sept/Oct. After Oct '13, it will appear to change direction again and make a beeline for the Sun still staying pretty close to the ecliptic. After it passes the Sun it will head away at a sharp angle to the ecliptic as shown in the last video.

TBar1984  (OP)

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10/24/2012 03:36 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
Here's another version; Earth's Magnetosphere behaves like a Sieve [link to phys.org]
TBar1984  (OP)

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10/24/2012 04:16 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
Here's an older article demonstrating you don't need a 'Storm' to experience the phenomena.

Details of Solar Particles Penetrating the Earth’s Environment Revealed
3 October 2006 [link to www.esa.int]
"Although intermittent reconnection has been observed in the past, this was one of the longest series of continuous observations ever taken of a magnetic reconnection region in the Earth’s magnetosphere. Perhaps most surprising is that 8 May 2004 was just relatively a normal day for the Earth’s magnetic field. There were no large magnetic storms on Earth, or spectacular aurorae to fill the night sky. However, Cluster and Double Star revealed that energetic particles from the Sun were blasting their way through the Earth’s magnetic shield and penetrating the Earth’s environment..."
 Quoting: TBar1984

Here's a couple charts for May 8th 2004, Space Weather Alerts Timelines for May 1-15, 2004 [link to www.swpc.noaa.gov] & Total Electron Content [link to www.haarp.alaska.edu] Notice the "Electron Flux". Notice it recently [link to www.swpc.noaa.gov]

I find it interesting the Electron Flux was there in the quiet of Solar Minimum as well. Check these charts;
Oct 2006 [link to www.swpc.noaa.gov] & [link to www.haarp.alaska.edu]
Mar 2007 [link to www.swpc.noaa.gov] & [link to www.haarp.alaska.edu]
Jun 2007 [link to www.swpc.noaa.gov] & [link to www.haarp.alaska.edu]
Apr 2008 [link to www.swpc.noaa.gov] & [link to www.haarp.alaska.edu]
Aug 2008 [link to www.swpc.noaa.gov] & [link to www.haarp.alaska.edu]
TBar1984  (OP)

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10/24/2012 06:06 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
Another. Cluster Observes a 'Porous' Magnetopause
"The recently published paper in the Journal of Geophysical Research shows that the magnetopause - the outer region of the magnetic 'shield' around our planet - is breached in numerous places by the incoming charged particles of the solar wind. As a result, the boundary of Earth's magnetic bubble behaves more like a sieve than a continuous barrier that rebuffs the persistent onslaught of electrons and protons in the solar wind..."
[link to sci.esa.int]
TBar1984  (OP)

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10/24/2012 06:43 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
From the above. "A team of US scientists has now used Cluster data to show that KHW can form at high-latitudes, on the dawn/dusk flanks of the magnetopause, under other orientations of the IMF. The data were obtained between 12:00 and 17:00 UT on 12 January 2003, when the four Cluster spacecraft were in tetrahedral formation, about 4000 km apart, and flying close to the northern duskward cusp region of Earth's magnetosphere. The quartet was outbound, heading toward the evening side magnetopause. Whilst the magnitude of the magnetic field components generally declined until about 15:10 UT, the data were also punctuated by repeated short, but well defined, drops in the magnetic field. During those intervals, the data indicated the presence of more low-energy particles, as well as high density and low temperature. These conditions were typical of the outer region of the magnetopause..."
[link to sci.esa.int]

Charts for January 12th 2003, [link to www.swpc.noaa.gov] & [link to satdat.ngdc.noaa.gov] & [link to www.haarp.alaska.edu]
TBar1984  (OP)

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10/24/2012 08:17 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
So Damn. The Shields are so bad even a light breeze blows through the cracks in the siding. Where the 'ell did they get this thing, Walmart?

groucho
TBar1984  (OP)

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10/25/2012 07:27 AM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
coffee4
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10/25/2012 07:30 AM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
Why, you think this is bad or good for us? wtf
Plane

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10/25/2012 07:36 AM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
does this mean doom or good news or just blablabla?
TBar1984  (OP)

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10/25/2012 08:03 AM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
does this mean doom or good news or just blablabla?
 Quoting: Plane

It's one more leaf on the tree of knowledge. We weren't able to measure this type of process until very recently. Now we have a slightly better understanding of it from direct observations. I don't think you can classify knowledge as good or bad.

"This discovery shows how Earth's magnetosphere can be penetrated by solar particles under certain interplanetary magnetic field conditions," said Matt Taylor, ESA project scientist for Cluster. "The study of the high-latitude, dayside magnetopause would not have been possible without the in situ measurements sent back by Cluster. The relatively small spatial separation of the four spacecraft made it possible to analyse the spatial structures and characteristics of KHW." These results are also relevant to studies of magnetospheric processes around other planets in the Solar System. For example, KHW and KH instabilities are commonly observed at the boundary of Mercury's magnetosphere and on the dawnward flank of Saturn's magnetopause. This new study opens up the possible locations where KHW may be generated, suggesting that they can be a common, and possibly continuous, mechanism for the entry of solar wind into planetary magnetospheres under various IMF orientations."
[link to sci.esa.int]
Solar Guardian

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10/25/2012 08:05 AM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
does this mean doom or good news or just blablabla?
 Quoting: Plane

It's one more leaf on the tree of knowledge. We weren't able to measure this type of process until very recently. Now we have a slightly better understanding of it from direct observations. I don't think you can classify knowledge as good or bad.

"This discovery shows how Earth's magnetosphere can be penetrated by solar particles under certain interplanetary magnetic field conditions," said Matt Taylor, ESA project scientist for Cluster. "The study of the high-latitude, dayside magnetopause would not have been possible without the in situ measurements sent back by Cluster. The relatively small spatial separation of the four spacecraft made it possible to analyse the spatial structures and characteristics of KHW." These results are also relevant to studies of magnetospheric processes around other planets in the Solar System. For example, KHW and KH instabilities are commonly observed at the boundary of Mercury's magnetosphere and on the dawnward flank of Saturn's magnetopause. This new study opens up the possible locations where KHW may be generated, suggesting that they can be a common, and possibly continuous, mechanism for the entry of solar wind into planetary magnetospheres under various IMF orientations."
[link to sci.esa.int]
 Quoting: TBar1984


What he's asking is, will this cause catastrophes or doom here on Earth? What if we have massive solar wind penetration? Look at the TEC charts now! wtftomato
TBar1984  (OP)

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10/25/2012 08:16 AM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
does this mean doom or good news or just blablabla?
 Quoting: Plane

It's one more leaf on the tree of knowledge. We weren't able to measure this type of process until very recently. Now we have a slightly better understanding of it from direct observations. I don't think you can classify knowledge as good or bad.

"This discovery shows how Earth's magnetosphere can be penetrated by solar particles under certain interplanetary magnetic field conditions," said Matt Taylor, ESA project scientist for Cluster. "The study of the high-latitude, dayside magnetopause would not have been possible without the in situ measurements sent back by Cluster. The relatively small spatial separation of the four spacecraft made it possible to analyse the spatial structures and characteristics of KHW." These results are also relevant to studies of magnetospheric processes around other planets in the Solar System. For example, KHW and KH instabilities are commonly observed at the boundary of Mercury's magnetosphere and on the dawnward flank of Saturn's magnetopause. This new study opens up the possible locations where KHW may be generated, suggesting that they can be a common, and possibly continuous, mechanism for the entry of solar wind into planetary magnetospheres under various IMF orientations."
[link to sci.esa.int]
 Quoting: TBar1984


What he's asking is, will this cause catastrophes or doom here on Earth? What if we have massive solar wind penetration? Look at the TEC charts now! wtftomato
 Quoting: Solar Guardian

If it is a "common, and possibly continuous, mechanism", it means it's happened before, and it will happen again. Since nothing bad happened the last time, chances are nothing bad will happen the next time.

Here is the TEC [link to www.haarp.alaska.edu] and another chart showing Electron Flux [link to www.swpc.noaa.gov] If you are talking about that one model that appears to have a problem, look at other models, or just another variant of the same model [link to www.ips.gov.au]
pray_Italy

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10/26/2012 09:35 AM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
Where can I find a more complete animation showing this "bigger" ?

[link to iswa.gsfc.nasa.gov]


I remember having it seen in the past, but cannot find it anymore.... magnetosphere/magnetopause animation.

Ty
 Quoting: pray_Italy


Can anyone help me out with finding this^ ?
TBar1984  (OP)

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10/27/2012 01:26 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
Here's my latest movie with the Laschamp event near the end. Links are under the video here [link to www.youtube.com]

Raveninns

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10/31/2012 01:13 PM
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Re: Earth's Magnetosphere Behaves Like a Sieve, Allowing Solar Wind In Under a Wider Range of Conditions...
This isn't looking all that healthy....

[link to ccmc.gsfc.nasa.gov]
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