Earths Magnetic Field

Historic planetary instability and catastrophe. Evidence for electrical scarring on planets and moons. Electrical events in today's solar system. Electric Earth.

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Double layers outside of belts

Unread postby Max Photon » Wed Dec 04, 2013 9:00 am

Hmmm ...

Double layers observed outside of belts at a rate of 7000 per minute?

Was the probe shopping at Walmart?
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Re: Double layers confirmed outside Earth's Van Allen belt

Unread postby Morphix » Wed Dec 04, 2013 1:54 pm

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A Particle Accelerator in the Radiation Belts

Unread postby Solar » Wed Dec 04, 2013 6:50 pm

Satellites in the radiation belts reveal plasma structures that can jumpstart the acceleration of electrons to very high energies.

In spite of a wealth of observations and many proposed models, clarifying the various acceleration mechanisms represents a long-standing challenge. In Physical Review Letters, Forrest Mozer at the University of California, Berkeley, and colleagues [1] report the first in situ observations in the radiation belts of streams of thousands of “double layers”—moving sheets of separated positive and negative charge that have long been thought to accelerate electrons. Data from NASA’s Van Allen probes show an astonishing potential drop (voltage difference) of a million volts passing the satellites, in streams that appear in association with strong enhancements of 2.5-MeV electron fluxes. The energy that electrons can gain in the double-layer electric field could be the missing step in the radiation-belt acceleration scenario that has been envisaged by researchers in the last few years ... - Gaetano Zimbardo, American Physical Society: Published December 2, 2013 | Physics 6, 131 (2013) | DOI: 10.1103/Physics.6.131


Also see:

Megavolt Parallel Potentials Arising from Double-Layer Streams in the Earth’s Outer Radiation Belt: F. S. Mozer1, S. D. Bale1, J. W. Bonnell1, C. C. Chaston1, I. Roth1, and J. Wygant2

Déjà vu 8-)
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Re: A Particle Accelerator in the Radiation Belts

Unread postby Morphix » Wed Dec 04, 2013 11:15 pm

An active thread on this study has been ongoing in the Planetary Science forum titled "Double layers confirmed outside Earth's Van Allen belt" with responses and related links.
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Re: Double layers confirmed outside Earth's Van Allen belt

Unread postby meemoe_uk » Wed Dec 04, 2013 11:20 pm

Did anyone like Scott predict the 7000 onion layers arrangement of the DLs? Its the 1st time I've heard of it. All the EU models describe the DLs as one 1 big one, but it could easily be they were simplifying for clarity.
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Re: A Particle Accelerator in the Radiation Belts

Unread postby Solar » Thu Dec 05, 2013 3:26 am

Oh. Thank you.

If the Moderator would be so kind as to put this there that would be appreciated.

<Moderator note: threads merged>
"Our laws of force tend to be applied in the Newtonian sense in that for every action there is an equal reaction, and yet, in the real world, where many-body gravitational effects or electrodynamic actions prevail, we do not have every action paired with an equal reaction." — Harold Aspden
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Re: Double layers confirmed outside Earth's Van Allen belt

Unread postby Morphix » Fri Dec 06, 2013 8:35 pm

And another article published in July at phys.org: http://phys.org/news/2013-07-van-allen-probes-driver-electrons.html
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Re: Double layers confirmed outside Earth's Van Allen belt

Unread postby viscount aero » Sat Dec 07, 2013 1:08 am

This is quite shattering and amazing news--wow :shock: :idea: This seems like a dream or something! The mainstream is reporting this!

excerpt:
"Huge electric fields in the radiation belts around Earth may help explain how electrons surrounding the planet can be accelerated to speeds near that of light, researchers have found in a new study..."

Notice they said electric fields and not "magnetic fields." And the article cites "double layers" as their own terms! This is unreal!
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Re: Earths Magnetic Field

Unread postby seasmith » Mon Feb 10, 2014 9:25 am

The European Space Agency's trio of Swarm satellites are being steered into their respective orbits in preparation for their mission to produce the best-ever survey of Earth's magnetic field….
Tasked with measuring and untangling the different magnetic signals that stem from Earth’s core, mantle, crust, oceans, ionosphere and magnetosphere,


Each satellite carries a novel instrument to measure the velocity, direction and temperature of incoming ions. This information will be used to calculate the electric field near the satellite, an important counterpart to the magnetic field for studying processes in the upper atmosphere. Swarm is the first mission to make these global, multipoint measurements.

The animation below shows the first data from the electric field instrument from the horizontal and vertical imagers. Johnathan Burchill from the University of Calgary explains, "This is a time-lapse movie of some of the first ion images observed by Swarm. Spanning more than an orbit, the images in this movie demonstrate the capability of the instrument to operate under a wide range of plasma conditions."




http://www.sen.com/news/swarm-orbits-tw ... r-activity
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Re: Earths Magnetic Field

Unread postby Sparky » Mon Feb 10, 2014 10:17 am

I kinda understand the "shock wave" look of the magnetosphere, but what mechanism produces the tail? If it is being dragged along with the wind, wouldn't that indicate that it has mass?
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Re: Earths Magnetic Field

Unread postby seasmith » Mon Feb 10, 2014 3:40 pm

~
The ions and electrons entrained by the magnetospheres have detectable mass, would they work for you ?
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plasmaspheric wind in the Earth’s magnetosphere

Unread postby StefanR » Wed Feb 12, 2014 5:16 am

To make it just a little more complicated......., more 'winds'!

plasmaspheric wind in the Earth’s magnetosphere

Abstract. Plumes, forming at the plasmapause and released
outwards, constitute a well-established mode for plasmaspheric
material release to the Earth’s magnetosphere. They
are associated to active periods and the related electric field
change. In 1992, Lemaire and Shunk proposed the existence
of an additional mode for plasmaspheric material release to
the Earth’s magnetosphere: a plasmaspheric wind, steadily
transporting cold plasmaspheric plasma outwards across the
geomagnetic field lines, even during prolonged periods of
quiet geomagnetic conditions.
This has been proposed on
a theoretical basis. Direct detection of this wind has, however,
eluded observation in the past. Analysis of ion measurements,
acquired in the outer plasmasphere by the CIS experiment
onboard the four Cluster spacecraft, provide now an
experimental confirmation of the plasmaspheric wind. This
wind has been systematically detected in the outer plasmasphere
during quiet and moderately active conditions, and calculations
show that it could provide a substantial contribution
to the magnetospheric plasma populations outside the Earth’s
plasmasphere. Similar winds should also exist on other planets,
or astrophysical objects, quickly rotating and having an
atmosphere and a magnetic field.
http://www.ann-geophys.net/31/1143/2013/angeo-31-1143-2013.pdf
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Re: Earths Magnetic Field

Unread postby Sparky » Wed Feb 12, 2014 9:27 am

seasmith wrote:~
The ions and electrons entrained by the magnetospheres have detectable mass, would they work for you ?


Thanks, but not really. Mass being entrained, like a flooding river with debris, will contribute to overall mass/matter, but I am now working on an assumption that a magnetic field is mass/energy/matter(aether)flow. :? :shock:

Have I gotten myself in a mess with mass? :? :oops:

****************

************************

plasmaspheric wind.
:|
Would this imply that the additional ions are setting up a DL which could be seen as a continuation of the magnetosphere? ireallydonno :oops:
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Re: Earths Magnetic Field

Unread postby seasmith » Wed Feb 12, 2014 11:21 am

by StefanR » Wed Feb 12, 2014 5:16 am

To make it just a little more complicated......., more 'winds'!

plasmaspheric wind in the Earth’s magnetosphere

Abstract. Plumes, forming at the plasmapause and released
outwards, constitute a well-established mode for plasmaspheric
material release to the Earth’s magnetosphere.


Do you think those "plumes"may be consistent with a model of solar charge feeding in to Earth's aural oval regions; and at times of increased solar activity, excesses being recycled out at plasmaspheric equatorial lobe regions ?

Particles in the magnetosphere typically originate from the sun via the solar wind. Some of these particles precipitate into the lower atmosphere continuously, and the aurorae are thus normally present at all times, although they may not always be visible (due to limited intensity and the obscuring effect of daylight). At times of injection of large numbers of particles from the solar wind (following solar activity) the aurora become brighter and the ring region in which they occur (termed the auroral oval) expands and moves closer to the equator.

http://www.spaceacademy.net.au/env/terr ... aurora.htm

To connect unambiguously the magnetospheric structures with the phenomena at the ionospheric altitudes (boundaries of atmospheric luminousity, boundaries of precipitation of diffrent-energy particles, boundaries of penetration of the solar cosmic rays etc.), it is insufficient to understand quasi-stationary structure of the magnetospheric magnetic field. One should know much about convective electric field in the magnetos­ phere, field-alighned electric fields which are rather strong dur­ ing disturbances at the auroral latitudes, particle interaction with the MHD waves, etc. Quasi-stationary large-scale structure of the magnetic field is a rather significant organizing factor deter­ mining morphology of many magnetospheric processes.


http://www.agu.org/books/gm/v155/155GM27/155GM27.pdf
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Re: Earths Magnetic Field

Unread postby StefanR » Wed Feb 12, 2014 5:10 pm

seasmith wrote:Do you think those "plumes"may be consistent with a model of solar charge feeding in to Earth's aural oval regions; and at times of increased solar activity, excesses being recycled out at plasmaspheric equatorial lobe regions ?


I'm not quite sure, in what way does the following answer your question? :

The near-Earth space environment is not a perfect vacuum, but rather is filled with plasma, or ionized gas. Plasma is formed when the upper parts of the Earth's atmosphere are electrified by the Sun's ultraviolet rays.
This plasma leaks out into space, and fills up the Earth's nearby space environment. The plasmasphere is a doughnut-shaped region of ionized gas, or plasma. In this animation, the plasmasphere is the green region surrounding the Earth. The viewpoint of the animation varies from above the North pole to below the South pole of the Earth, and shows the 3D shape of the plasmasphere. As you can see from the animation, the outer boundary of the plasmasphere, which we call the plasmapause, mostly follows the Earth's magnetic field lines, which are drawn in gray here.
http://enarc.space.swri.edu/PAPERS/FTP/PressConfAGU05/TEC+EUV-JGo/Bridgmanimations/plasmatour_640x480.mpg

http://enarc.space.swri.edu/PAPERS/tutorial.html

The plasmasphere, a plasma cloud around the Earth
The plasmasphere is the upward extension of the Earth’s atmosphere at equatorial and mid-latitudes. It forms a plasma cloud that enshrouds the Earth.
Image
The size of the plasmasphere changes, depending on the solar wind – magnetosphere interaction. The results of the model are compared to measurements by spacecraft, such as Cluster and IMAGE. (Image credit Jerry Goldstein/SwRI)
http://www.youtube.com/watch?v=GvRbri66nds&gl=CA

http://www.aeronomie.be/en/news-press/2013-09-18-vanallen-plasmasphere.htm

First, EUV imaging captures the interaction of dayside solar wind—plasma from the sun—with the earth's magnetic field, the magnetosphere. This event, known as the solar-wind-magnetosphere (SWM) interaction, defines the energy input to the SWM system (see Figure 1). As solar wind encounters the dayside magnetopause (the point at which the wind pressure is equal to that of the magnetosphere), charge exchange between solar wind αparticles (He++ ions) and the neutral exosphere produces a 30.4nm emission that ranges from 0.25 milliRayleighs (during nominal conditions) to 6 Rayleighs (during disturbed conditions). We know that this solar wind energy input carries field lines over the polar caps to the nightside, where explosive substorms produce an earthward (or sunward) return flow that erodes the inner magnetosphere (the plasmasphere), causing the formation of sunward-pointing dayside plumes. These can transport away 30–100 tons of magnetospheric plasma (approximately 20–40% of the initial He+ distribution) in just a few hours.3
The EUV imager aboard NASA's Imager for Magnetopause-to-Aurora Global Exploration (IMAGE) satellite captured the erosion process with 10min resolution.4 An improved EUV imager that could capture erosion with 1min time resolution would answer many outstanding questions about the mechanics of the removal of so much plasma. Second, theoretical models and some observations5,6 suggest that the arrival of tons of dense plasma at the magnetopause may reduce or suppress the solar wind energy input. Therefore, feedback from the magnetosphere could squelch the SWM interaction. Finally, we know from the IMAGE mission that EUV-filtered imaging also captures the far-UV aurora, which is a measure of the overall time-dependent strength of the SWM interaction.

http://spie.org/x103675.xml

This animation shows the Earth’s plasmasphere – the innermost part of our planet’s magnetosphere – and the plasmaspheric wind, an outward flow of charged particles. The doughnut-shaped plasmasphere is centred around the Earth’s equator and rotates along with it. The steady plasmaspheric wind continuously transfers material from the plasmasphere into the magnetosphere, releasing about 1 kg of plasma every second – almost 90 tonnes a day – into the outer magnetosphere.
http://www.youtube.com/watch?v=z7jSiXR-aF4&gl=CA

http://www.egu.eu/medialibrary/video/501/plasma-outflow-from-plasmasphere-to-magnetosphere-video/
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