2:40 PM - 2:55 PM
[PEM13-04] Conjugate observation of EMIC waves by Arase and RBSP with associated POES and AARDDVARK detected electron precipitation
Keywords:Arase, Van Allen Probes, EMIC, Wave-particle interactions, AARDDVARK
During this period of wave activity, we also see evidence of energetic electron precipitation into the ionosphere. At the time of the RBSP and ARASE observations, the POES METOP-02 satellite passed through the footprint of the source region and observed bursts of energetic ion and electron precipitation into the ionosphere, matching known signatures of EMIC-driven particle precipitation. This precipitation was then in turn observed from the ground as AARDDVARK-detected sub-ionospheric VLF perturbations. Through analysis of these ground-based observations, we are able to estimate the extent of the EMIC source region.