2023 THEMIS SCIENCE NUGGETS

SUMMARIES OF THEMIS RESEARCH

Lunar tides affect Earths oceans and its geomagnetic field. Multi-satellite observations demonstrate that they also impact the plasmasphere. Read more.

In this work we investigate the conditions in near-Earth space that correspond to the source region of these bead-like structures.

Foreshock transients can disturb the near-Earth space environment but are not predictable. We established a model that makes it possible to forecast foreshock transient-driven disturbances. Read more.

Kinetic Alfven waves have been previously observed to be ubiUsing THEMIS as well as OMNI data we statistically connect the occurrence of jets in the magnetosheath with incoming solar wind structures and their properties. We find that CMEs show unfavorable parameter distribution for jet occurrence, while fast solar wind is more likely to generate jets in the magnetosheath.. Read more.

Kinetic Alfven waves have been previously observed to be ubiquitously associated with magnetospheric electron injections but have not been considered as an important driver for precipitation of plasma sheet injection electrons with energies of tens to hundreds of keV. Combining ELFIN-THEMIS-DMSP observations and numerical simulations, this study provides strong evidence that kinetic Alfven waves may dominate over other wave modes or mechanisms in the driving of energetic electron precipitation from the substorm plasma sheet. Read more.

We use local all sky imager data and global solar wind and IMF data for localized geomagnetic substorm forecasting. Read more.

The first sightseeing of Rayleigh-Taylor Instability at Earth’s Magnetopause when the dynamic pressure in solar wind suddenly drops. . Read more.