Title :
Statistical analysis of outer electron radiation belt dropouts: geosynchronous and low earth orbit responses during solar wind stream interfaces
Author :
Ogunjobi, O. ; Collier, A.B. ; Rodger, C.J.
Author_Institution :
Sch. of Phys., Univ. of KwaZulu-Natal, Durban, South Africa
Abstract :
The high resolution OMNI-2 data set enables a correlative study of Stream Interfaces events (SIs). Statistical analysis of energetic electron flux indicates a gradual dropout as measured by LANL/SOPA, reaching deepest minimum at the arrival of SI. Additionally, precipitation from POES 15-18 measurement of >;30 keV electrons at LEO shows slower-decaying peaks at the time of SI arrival. The precipitating electron flux is attributed to passage of SIs thus can be used to explain some loss mechanisms under high-speed-stream interference.
Keywords :
atmospheric electron precipitation; radiation belts; solar wind; OMNI-2 data; POES 15-18 measurement; electron flux precipitation; electron radiation belt; energetic electron flux; geosynchronous response; high-speed-stream interference; low Earth orbit response; solar wind stream; stream interfaces events; Belts; Electron traps; Extraterrestrial measurements; Pollution measurement; Protons; Satellites; Silicon;
Conference_Titel :
General Assembly and Scientific Symposium, 2011 XXXth URSI
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-5117-3
DOI :
10.1109/URSIGASS.2011.6123725
