2024 THEMIS SCIENCE NUGGETS

SUMMARIES OF THEMIS RESEARCH

We analyze data from the five THEMIS satellites to investigate these changes. We focus on the kappa-index for ions and electrons to better understand their behavior and what they reveal about plasma environments, such as the Earth’s magnetosphere. Read more.

Energetic particle precipitation may significantly alter the physics of magnetosphere-ionosphere coupling within SAPS. Relativistic electrons will extend the altitude range of ionization enhancement to <100 km, while energetic ion precipitation will extend its latitudinal range. We study energetic particle precipitation during SAPS using observations from the low-altitude ELFIN CubeSats in conjugation with near-equatorial THEMIS measurements. Read more.

During strong substorms, energetic electrons can be transported deep into the inner magnetosphere, reaching the slot region or even smaller L-shells. This transport is usually too fast to be explained by radial diffusion. Read more.

Geomagnetically induced currents (GIC) in power systems are among the most severe space weather hazards, yet the mechanisms driving large GIC events are not well understood... Read more.

The dipolarization front (DF), as the leading edge of fast earthward plasma flow in the planetary magnetotail, plays an important role in the plasma energization and energy transportation from the magnetotail to inner magnetosphere. Read more.