摘要：NOAA will host a workshop in Boulder, Colorado, on the comparison and intercalibration of solar energetic particle measurements. It will take place on the afternoon of Friday, 11 April 2014, at the Millennium Harvest House, following the annual Space Weather Workshop. Solar energetic particles (SEPs) consist of ions (protons, helium nuclei, and heavier ions), electrons, and even energetic neutral atoms emitted by the Sun in association with solar flares and coronal mass ejections. Of long-standing scientific interest since the discovery of ground level enhancements by Scott Forbush in 1942 [Forbush, 1946], SEPs have been monitored continuouslysincethe1970sasanimportantaspectofspaceweather.Theireffectsincludetheradiationhazard posed to robotic and human space flight and to aircraft passengers and crew at high latitudes, as well as the absorption of radio waves in the polar cap by the secondary ionization caused by their precipitation into the upper atmosphere.
