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PPT Slide
Most Obvious Manifestation of Substorms: Aurora
- Traveling along magnetic field lines, the accelerated particles reach the Earth along an oval region about the magnetic pole.
- The aurora is seen to expand and contract as the magnetotail lobes swell and shrink.
POLAR is the first spacecraft capable of imaging the aurora simultaneously in visible, ultraviolet and X-ray wavelenghts.
Above is background material for archival reference only.
