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Questions and Answers
What drives the Birkeland currents in the Earth's magnetosphere?
What drives the Birkeland currents in the Earth's magnetosphere?
- Solar wind and interplanetary magnetic field (correct)
- Ocean currents
- Atmospheric pressure and temperature
- Tectonic plate movements
What do small scale variations in the upward current sheets accelerate?
What do small scale variations in the upward current sheets accelerate?
- Ocean currents
- Atmospheric nitrogen
- Magnetospheric electrons (correct)
- Tectonic plate movements
What do the accelerated magnetospheric electrons create when they reach the upper atmosphere?
What do the accelerated magnetospheric electrons create when they reach the upper atmosphere?
- Tornadoes
- Auroras Borealis and Australis (correct)
- Rainbows
- Hurricanes
Where do the Birkeland currents close through in the high latitude ionosphere?
Where do the Birkeland currents close through in the high latitude ionosphere?
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In which direction does the auroral electrojet flow in the ionosphere?
In which direction does the auroral electrojet flow in the ionosphere?
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