[IGPP Everyone] Space Physics seminar - Friday 5/6, 3:30 PM PDT - Radiation Belt Dynamics from a Particle Perspective (F. Staples, UCLA AOS)
Emmanuel Masongsong
emasongsong at igpp.ucla.edu
Mon May 2 11:16:25 PDT 2022
SPACE PHYSICS SEMINAR
DEPARTMENT OF EARTH, PLANETARY, AND SPACE SCIENCES
DEPARTMENT OF ATMOSPHERIC AND OCEANIC SCIENCES
UNIVERSITY OF CALIFORNIA, LOS ANGELES
ZOOM LINK PROVIDED BELOW
https://ucla.zoom.us/j/98070654630?pwd=aWdrSktueG9xWjU3cDZiQUhGRXV0UT09
Radiation Belt Dynamics from a Particle Perspective
Frances Staples
UCLA AOS
Outer radiation belt electron flux is controlled by a variety of physical processes which act independently or in unison to drive acceleration and loss of electrons. By considering the kinematical state of radiation belt electrons, telltale signatures of acceleration and loss processes can be identified. This seminar will discuss how observations of electron phase space density (PSD) in adiabatic coordinate systems are used to decipher the dynamics of relativistic electron populations. Presented is a study which combined observations from 36 satellites, using a novel inter-calibration technique, to create a new multi-mission PSD dataset. With this multi-spacecraft dataset electron dynamics were resolved during a flux dropout in September 2017, allowing us to identify magnetopause shadowing as the dominant loss driver. Multi-mission observations provided unprecedented time and spatial resolution, which we show was necessary to correctly interpret electron dynamics during this case study.
Friday, May 6th, 2022
In-person in Slichter 3853, with refreshments afterwards on Franz Patio
3:30 - 4:30 PM
In-Charge: Vassilis Angelopoulos
Spring Space Physics Seminar schedule:
May 06 Frances Staples, UCLA AOS
Radiation Belt Dynamics from a Particle Perspective
May 12 Yangyang Shen, UCLA EPSS
Contribution of kinetic Alfvén waves to energetic electron scattering and precipitation from plasma sheet injections
May 20 Mike Hartinger, UCLA EPSS, SSI
Inter-Hemispheric Comparisons of Mesoscale Current Systems through Expanded Antarctic Instrument Networks
May 27 Man Hua, UCLA AOS
Radiation belt electron dynamics driven by VLF transmitter waves in near-Earth space
June 03 Adam Kellerman, UCLA AOS
Modeling Earth's Radiation Belt Electrons on Shorter Time Scales
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