magnetopause


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magnetopause

(mag-nee -toh-pawz) See magnetosphere.

magnetopause

[mag′nēd·ə‚pȯz]
(geophysics)
A boundary that marks the transition from the earth's magnetosphere to the interplanetary medium.
References in periodicals archive ?
The magnetopause is located between 1000 and 2000 km from the planet's surface (on average at 1.4 Rm, but might even touch the planet when the solar wind dynamic pressure is high).
At Earth's equatorial plane, the magnetopause is located from 10 to a few dozens of Earth radii out.
This technique is referred to as radio plasma imaging (RPI) and will be used on IMAGE to map large portions of the magnetosphere, from its inner boundary in the upper atmosphere to the magnetopause, its outer boundary with the solar wind.
Under these conditions, the Cluster data showed the waves on the dusk side of the high-latitude magnetopause. The magnetopause is the boundary between the relatively undisturbed magnetosphere and the magnetosheath, the region containing solar wind plasma that has come across the bow shock that protects Earth from the direct onslaught of solar wind plasma.
In an illustration of Earth's magnetosphere on page 13, the magnetotail is mislabeled "magnetogain," and the "magnetopause" label is in the wrong place.
In half an hour, this high-pressure wave travelled more than a million kilometres (620,000 miles) to the Earth's magnetopause.
The high-pressure pulse induced currents both in the magnetopause and in power lines across New Zealand, causing alarms to be tripped and a transformer to fail catastrophically.
They also identified the magnetospheric region that corresponds to these emissions, and by analogy with similar flares on Earth, they determine that the flares are probably related to pulsed reconnections of the magnetic field at the planet's dayside magnetopause (boundary where the planet's magnetic field meets the solar wind of particles flowing from the Sun).
The boundary separating Earth's magnetic sphere of influence from the solar wind is called the magnetopause.
It showed the pileup of the solar wind in front of the magnetopause, the boundary between the Earth's magnetosphere and interplanetary space, giving important new details about the processes that protect Earth's atmosphere.
It is still unclear exactly how electrons and ions in the solar wind can pass through Earth's magnetic barrier, called the magnetopause. One theory suggests the particles flow around Earth and then come up from behind the planet.
The smaller magnetopause allowed the solar wind to strip away more water vapor from the early Earth.