Articles | Volume 40, issue 4
https://doi.org/10.5194/angeo-40-531-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-40-531-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Regular paper
| 
05 Aug 2022
Regular paper |
| 05 Aug 2022
| 05 Aug 2022
Multiple conjugate observations of magnetospheric fast flow bursts using THEMIS observations
Homayon Aryan
CORRESPONDING AUTHOR
University of California Los Angeles, Atmospheric and Oceanic Sciences, Math Sciences Building, Los Angeles, California 90095-1565, USA
Jacob Bortnik
University of California Los Angeles, Atmospheric and Oceanic Sciences, Math Sciences Building, Los Angeles, California 90095-1565, USA
Jinxing Li
University of California Los Angeles, Atmospheric and Oceanic Sciences, Math Sciences Building, Los Angeles, California 90095-1565, USA
James Michael Weygand
Department of Earth, Planetary and Space Sciences, University of California Los Angeles, California 90095, USA
Xiangning Chu
Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80303, USA
Vassilis Angelopoulos
Department of Earth, Planetary and Space Sciences, University of California Los Angeles, California 90095, USA
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Subject: Magnetosphere & space plasma physics | Keywords: Magnetosphere–ionosphere interactions
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When the terrestrial magnetic field is disturbed, particles from the near-Earth space can precipitate into the upper atmosphere. This work presents, for the first time, numerical simulations of proton precipitation in the energy range associated with the production of aurora (∼1–30 keV) using a global kinetic model of the near-Earth space: Vlasiator. We find that nightside proton precipitation can be regulated by the transition region between stretched and dipolar geomagnetic field lines.
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Short summary
In this study, we use a multipoint analysis of conjugate magnetospheric and ionospheric observations to investigate the magnetospheric and ionospheric responses to fast flow bursts that are associated with different space weather conditions. The results show that ionospheric currents are connected to the magnetospheric flows for different space weather conditions. The connection is more apparent and global for flows that are associated with a geomagnetically active condition.
In this study, we use a multipoint analysis of conjugate magnetospheric and ionospheric...
