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Ionospheric Response to Electron Precipitation Driven by Whistler-Mode Chorus Waves Measured by Arase Satellite and Simulated by STET and SPEAH-RITThe origin of pulsating auroras has long been an open question. Arase satellite observation reported the direct evidence that precipitated electrons in pulsating aurora are driven by whistler-mode chorus wave activity. Our study presents the theoretical analysis of this observational event based on SuperThermal Electron Transport (STET) code that simulates the highly dynamic environment of measured wave intensities and particle fluxes. Specifically, the STET code simulated results confirm the delicate loss-cone observation results of this mission and reveal the broader energy range of precipitated electron fluxes that were not measurable by Arase satellite. These highly dynamic precipitating electron fluxes were applied to a newly developed code, the Superthermal Proton, Electron and Atomic Hydrogen tRansport in the Ionosphere and Thermosphere (SPEAH-RIT), to simulate ionospheric response of this phenomena, in particular, the enhancement of electron density, plasma temperatures, and ionospheric electric conductance at the footprints of Arase satellite.
Document ID
20230018317
Acquisition Source
Goddard Space Flight Center
Document Type
Poster
Authors
George V. Khazanov
(Goddard Space Flight Center Greenbelt, Maryland, United States)
Suk-Bin Kang
(Catholic University of America Washington D.C., District of Columbia, United States)
Qianli Ma
(University of California, Los Angeles Los Angeles, California, United States)
Date Acquired
December 18, 2023
Subject Category
Geophysics
Meeting Information
Meeting: 23rd Meeting of the American Geophysical Union (AGU)
Location: San Fransisco, CA
Country: US
Start Date: December 11, 2023
End Date: December 15, 2023
Sponsors: American Geophysical Union
Funding Number(s)
WBS: 791926.02.04.02.18
CONTRACT_GRANT: 80NSSC21M0180
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.
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