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What occurs about 130 km above Earth's surface near the polar regions when energy in the solar wind guided by Earth's magnetic field excites gases in the upper atmosphere?
Wiki User
∙ 13y ago
Its called the Aurora Borealis for the Northern Hemisphere and Aurora Australis in the Southern Hemisphere. The particles excite the gases to make stupendous visual color displays that can be seen over thousands of miles.
No two times are the same the shows can vary from undulating curtains to clouds of ever changing colours. As they say a Picture can paint a thousand words.
Check the related source links below for a couple of picture that will give you an idea.
Wiki User
∙ 13y ago
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Part of tge earths atmosphere closest to its surface?
The part of the earth's atmosphere that is closest to its surface is known as the troposphere.
Why is the atmosphere near the earth's surface densest?
The mass of the atmosphere compresses the atmosphere and it is most compressed near the earth's surface where the entire height of the atmosphere is above it.
When magnetic flux through surface is maximum?
Magnetic flux through a surface is maximum when the direction of the magnetic field is in the same direction as the normal vector of the surface. In other words, the magnetic flux is maximum when the magnetic field is perpendicular to the surface area. That's why φ=BAcosθ, where θ is the angle between the direction of the magnetic field and the normal vector of the surface area. When the magnetic field is exactly the same direction as the normal vector (aka the magnetic field is perpendicular to the surface), θ=0 and cosθ = 1, its maximum value. The closer θ is to 90 degrees (ie. the more parallel the direction of the magnetic field is to the surface area, or the less parallel the magnetic field is to the surfaces normal vector), the smaller cosθ is, and thus flux will decrease accordingly.
How does the water move from Earth's surface to the atmosphere?
how did water from the earth's surface get into the atmosphere
In what regions of the globe do warm surface currents originate?
southern regions
What often link different parts of sunspot regions on the surface of the sun?
Magnetic field lines.
Where are the regions of the universe including the surface atmosphere and oceans in which life exists or could exist?
ecosphere
Regions of the universe including the surface atmosphere and oceans in which life exists could exist?
ecosphere
What prevents particles from the sun from reaching the surface?
Charged particles from the Sun will not reach the surface of the Earth because they are mostly deflected around it by the Earth's magnetic field (the magnetosphere), but where the particles are deflected towards the surface near the Earth's magnetic poles, they interact with the gas high in the atmosphere to form the Auroras and do not penetrate through to the surface.
Which region of the earth's surface is called doldrums?
Duldrums are equitorial regions of the Atlantic Ocean which is characterised by calm atmosphere(air/winds).
What prevents charges particles from the sun from reaching the surface?
Charged particles from the Sun will not reach the surface of the Earth because they are mostly deflected around it by the Earth's magnetic field (the magnetosphere), but where the particles are deflected towards the surface near the Earth's magnetic poles, they interact with the gas high in the atmosphere to form the Auroras and do not penetrate through to the surface.
What prevents Venus' atmosphere from being stripped away by the solar wind if it has no magnetic field?
It's gravity that holds it down. Also it's a very thick atmosphere with surface pressure of 95 atmospheres.
Do all meteors impact on Earth's surface?
Not all meteors impact the surface of the earth. Many burn up in the atmosphere prior to impact. The majority of meteors that do reach the earth's surface usually impact desolate regions.
What is the atmosphere on the surface of Venus's?
The atmosphere on the surface of Venus is cloudy.
What is is a biosphere?
The official definition of the word biosphere is the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.
What are some interesting things about the Moon's atmosphere?
The only thing that can be said about the Moon's atmosphere is that it has none, because its gravity is too weak to hold an atmosphere on its surface. Also, it doesn't have a magnetic field to protect an atmosphere from solar winds, which would slowly 'knock off' particles in the Moon's atmosphere until there were none left if it did have an atmosphere.
What prevents some of the sun's radiation from reaching earth's surface?
Charged particles from the Sun will not reach the surface of the Earth because they are mostly deflected around it by the Earth's magnetic field (the magnetosphere), but where the particles are deflected towards the surface near the Earth's magnetic poles, they interact with the gas high in the atmosphere to form the Auroras and do not penetrate through to the surface.
