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EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > SPACE WEATHER ADVISORIES > SOLAR FLARES

Definition:
An abrupt release, from a localized region on the Sun, of large amounts of
energy in ultraviolet light, x-radiation, and occasionally gamma radiation.
Flares usually occur in or near complex sunspot regions and may be related to
the rearrangement of the intense magnetic fields there.


Reference:
Space Studies Board, Commission on Physical Sciences, Mathematics, and
Applications National Research Council: http://www.nas.edu/ssb/glossary.html