EARTH SCIENCE SERVICES > ENVIRONMENTAL ADVISORIES > SPACE WEATHER ADVISORIES > SOLAR FLARES
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.
Space Studies Board, Commission on Physical Sciences, Mathematics, and
Applications National Research Council: http://www.nas.edu/ssb/glossary.html