Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm41b2027a&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SM41B-2027
Physics
[2774] Magnetospheric Physics / Radiation Belts, [2788] Magnetospheric Physics / Magnetic Storms And Substorms
Scientific paper
In December 2008, a BARREL (Balloon Array for Radiation-belt Relativistic Electron Losses) prototype instrument was launched from McMurdo, Antarctica and carried for 54 days at an altitude of 34 km on NASA's superpressure balloon. A total of six BARREL prototype payloads were hand-launched from McMurdo, Antarctica in December 2009 and December 2010. Relativistic electron precipitation was observed during a small (-36nT) geomagnetic storm on Feb. 14-18, 2009, and lower energy precipitation was observed during December 14-18, 2010. Though these storms were not strong, they nevertheless result in significant enhancement of the relativistic electron flux measured at GOES. We present the BARREL observations and use data from GOES geosynchronous satellites to investigate the role of electron loss processes during small (minimum DST > -50nT) geomagnetic storms.
Anderson Benjamin R.
Millan Robyn M.
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