Affecting Earth's Magnetic Field?

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Discussion Overview

The discussion centers around the effects of solar activity, particularly solar storms and radiation, on Earth's magnetic field. Participants explore the nature of these interactions, the implications for the upper atmosphere, and the potential for geomagnetic storms to influence magnetic properties on Earth. The scope includes theoretical considerations, observational data, and speculative reasoning.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants inquire about the types of radial fields from the Sun that affect Earth's magnetic field and seek resources for tracking solar activity.
  • One participant mentions the Van Allen Belts and describes the Sun's emissions, including radiation and charged particles, suggesting that these contribute to changes in the upper atmosphere.
  • Another participant proposes that periodic solar storms consist of high-velocity charged particles that could generate significant magnetic fields, potentially varying Earth's magnetic field.
  • Some participants assert that geomagnetic storms are established phenomena, emphasizing that they can be proven through observational data over an 11-year solar cycle.
  • There is a discussion about the effects of solar activity on ionization in the upper atmosphere, which can disrupt radio signals and increase cosmic rays, leading to more auroras.
  • One participant speculates that the Earth's magnetic properties could change under immense magnetic fields, drawing parallels to how permanent magnets behave under similar conditions.
  • Another participant notes that while solar storms induce short-term changes, there is no evidence that they have permanently altered the Earth's magnetism.

Areas of Agreement / Disagreement

Participants express a range of views on the effects of solar activity on Earth's magnetic field. While some agree on the existence and impact of geomagnetic storms, others raise questions about the extent and permanence of these effects. The discussion remains unresolved regarding the specifics of how solar activity influences the Earth's magnetic properties.

Contextual Notes

Some claims rely on assumptions about the nature of solar emissions and their interactions with Earth's atmosphere and magnetic field. The discussion includes references to observational data and theoretical models, but there are unresolved questions about the mechanisms involved and the implications for Earth's magnetism.

oem7110
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Referring to following link, I would like to know what kind of radial fields from Sun affects on Earth's Magnet field, is there any website offering record of this activity?
Thanks in advance for any suggestions

http://www.youtube.com/watch?NR=1&v=lPLjnqS8UeY
 
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You want to look up "Van Allen Belts"

The Sun emits a lot of radiation - light, for example ... this includes infrared all through UV to X-rays and gamma rays. Also the Sun spits out matter - the "cosmic wind". So you'd get a shorter answer asking what the Sun does not throw at us ... which is basically rocks: the Sun does not throw rocks at us.

There are lots of places to get a record of solar activity - as you can imagine, it's a lot of data. There are also digests... there is a good place to start here:
http://www.windows2universe.org/sun/activity/sunspot_history.html

Notice the 11 year cycle they are talking about (the size gets bigger because detection has got better - back in the 1600's there were only small optical telescopes, now we have spacecraft watching everything)? There's also a longer period of fluctuations that looks like beats in sound - that's why you don't remember a blackout 10 years ago: the peak activity was weaker then.

When you know what you want you can start looking for academic sources.
 
Simon Bridge said:
You want to look up "Van Allen Belts"

...
Notice the 11 year cycle they are talking about (the size gets bigger because detection has got better - back in the 1600's there were only small optical telescopes, now we have spacecraft watching everything)? There's also a longer period of fluctuations that looks like beats in sound - that's why you don't remember a blackout 10 years ago: the peak activity was weaker then.

When you know what you want you can start looking for academic sources.

"The Sun gives off more radiation than usual during solar max, and this extra energy changes the uppermost layers of Earth's atmosphere."

Does anyone have any suggestions on how the uppermost layers of Earth's atmosphere change with this extra energy?

Thanks you very much for any suggestions
 
Did you look at the references supplied? Did you look up van allen belts?

These questions are extremely general - what is it all in aid of?

In general - you get more ionized gasses in the upper atmosphere - this is what plays havoc with radio signals. You also get more cosmic rays. More of everything. One of the effects is more aurora.
 
I think thatthere is periodic solar storm that consists of high velocity charged particles. Since there is large amount of them which would generate incredible magnetic field moving through. Thus it might vary the Earth's magnetic field.
 
ZealScience said:
I think that there is periodic solar storm that consists of high velocity charged particles.
Well, in fact, you know this is the case.
Since there is large amount of them which would generate incredible magnetic field moving through. Thus it might vary the Earth's magnetic field.
Again - we know that this is the case. That Windows to the Universe site shows you the proof.

Geomagnetic storms are not a matter of belief, this is not a religion relying on faith, that needs this sort of statement of belief.

If you ever find someone who does not believe in GMS's, they are wrong, and you can prove it within 11 years.
 
Last edited:
Simon Bridge said:
Well, in fact, you know this is the case.
Again - we know that this is the case. That Windows to the Universe site shows you the proof.

Geomagnetic storms are not a matter of belief, this is not a religion relying on faith, that needs this sort of statement of belief.

If you ever find someone who does not believe in GMS's, they are wrong, and you can prove it within 11 years.

Sorry, I am not expert, I don't know much about geology. I am just applying some basic physics knowledge. Since permanent magnets would change magnetic properties under immense magnetic field due to rearrangement of magnetic domains or magnetic moments, I think that it would be similar in the case of the earth.

Anyway, I extrapolated from elementary physics, there are lots of flaws. If you find any you could correct me.
 
ZealScience said:
Sorry, I am not expert, I don't know much about geology. I am just applying some basic physics knowledge. Since permanent magnets would change magnetic properties under immense magnetic field due to rearrangement of magnetic domains or magnetic moments, I think that it would be similar in the case of the earth.

Anyway, I extrapolated from elementary physics, there are lots of flaws. If you find any you could correct me.

I had a feeling this may have been the case. Have a read of:
http://en.wikipedia.org/wiki/Earth's_magnetic_field

The Earths field is not generated like a bar magnet.
In a nutshell - it is formed from the movement of molten iron in the outer core.
A GMS capable of changing this, significantly, would likely strip the whole magnetosphere.

You've have, however, done a fair extrapolation.
So far, no solar storms have permanently changed the magnetism of solid magnets.
What you normally get is induced currents from the charge flux making short-term local changes ... disrupt radio traffic, damage delicate, unshielded, circuitry.
 

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