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Plasma Transport Driven By The Three-Dimensional Kelvin-Helmholtz Instability, Xuanye Ma, Peter Delamere, Antonius Otto, Brandon Burkholder
Plasma Transport Driven By The Three-Dimensional Kelvin-Helmholtz Instability, Xuanye Ma, Peter Delamere, Antonius Otto, Brandon Burkholder
Publications
It has been well demonstrated that the nonlinear Kelvin‐Helmholtz (KH) instability plays a critical role for the solar wind interaction with the Earth's magnetosphere. Although the two‐dimensional KH instability has been fully explored during the past decades, more and more studies show the fundamental difference between the two‐ and three‐dimensional KH instability. For northward interplanetary magnetic field (IMF) conditions, the nonlinear KH wave that is localized in the vicinity of the equatorial plane can dramatically bend the magnetic field line, generating strong antiparallel magnetic field components at high latitudes in both North and South Hemispheres, which satisfy the onset condition …
Influence Of Velocity Fluctuations On The Kelvin-Helmholtz Instability And Its Associated Mass Transport, Katariina Nykyri, Xuanye Ma, Andrew Dimmock, Claire Foullon, Antonius Otto, Adnane Osmane
Influence Of Velocity Fluctuations On The Kelvin-Helmholtz Instability And Its Associated Mass Transport, Katariina Nykyri, Xuanye Ma, Andrew Dimmock, Claire Foullon, Antonius Otto, Adnane Osmane
Publications
Kelvin-Helmholtz instability (KHI) and associated magnetic reconnection and diffusion processes provide plasma transport from solar wind into the magnetosphere. The efficiency of this transport depends on the magnetosheath and magnetospheric plasma and field properties at the vicinity of the magnetopause. Our recent statistical study using data from the Time History of Events and Macroscale Interactions during Substorms spacecraft indicates that the amplitude of the magnetosheath velocity fluctuations perpendicular to the magnetopause can be substantial. We have performed a series of local macroscale 2.5-dimensional magnetohydrodynamic simulations of the KHI during strongly northward interplanetary magnetic field and with the initial plasma parameters …
Understanding Ion Spectral Dynamics Near The Inner Edge Of The Plasma Sheet, Cristian Ferradas
Understanding Ion Spectral Dynamics Near The Inner Edge Of The Plasma Sheet, Cristian Ferradas
Doctoral Dissertations
The inner magnetosphere is a highly dynamic space environment in which particles strongly interact with the magnetic and electric fields. During the last few decades, several missions have recorded the presence of dynamic spectral features of energetic ions in in situ measurements, which represent the observational signatures of ion transport, acceleration, and loss in the inner magnetosphere. These ion spectral features constitute the inner extent of access of the plasma sheet to the low L values and play an important role in the dynamics of the inner magnetosphere, yet no statistical results of their species dependence are available to date. …