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Microburst precipitation of energetic electrons associated with chorus wave generation
Author(s) -
Hikishima Mitsuru,
Omura Yoshiharu,
Summers Danny
Publication year - 2010
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2010gl042678
Subject(s) - microburst , chorus , electron , electron precipitation , van allen radiation belt , physics , precipitation , atmosphere (unit) , atmospheric sciences , computational physics , meteorology , magnetosphere , nuclear physics , plasma , wind shear , art , wind speed , literature
Electron microbursts, which are short‐duration (<1 sec) bursts of energetic electrons that precipitate into the Earth's atmosphere, comprise an important loss process from the outer radiation belt. By means of a self‐consistent full‐particle simulation, we show that microburst precipitation of electrons of energies 10 keV–100 keV accompanies the generation of discrete bursty chorus wave emissions. Specifically, we demonstrate a one‐to‐one correspondence between the electron microbursts and the generation of discrete chorus elements. This simulation study is the first to establish such an exact correlation between electron microbursts and the generation of chorus elements.