English
 
Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Conference Paper

A missing dusk-side loss process in the electron ring current

Authors
/persons/resource/bhaas

Haas,  Bernhard
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;
2.7 Space Physics and Space Weather, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/yshprits

SHPRITS,  YURI
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;
2.7 Space Physics and Space Weather, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/wutzig

Wutzig,  Michael
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;
2.7 Space Physics and Space Weather, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/dedong

Wang,  D.
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;
2.7 Space Physics and Space Weather, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/alinag

Grishina,  Alina
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;
2.7 Space Physics and Space Weather, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in GFZpublic
Supplementary Material (public)
There is no public supplementary material available
Citation

Haas, B., SHPRITS, Y., Wutzig, M., Wang, D., Grishina, A. (2023): A missing dusk-side loss process in the electron ring current, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-1891


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017656
Abstract
The ring current in the Earth's magnetosphere plays a crucial role in geospace and atmospheric dynamics, as its particle flux is strongly enhanced during geomagnetic active times. Predicting these enhancements is crucial for understanding the impacts of geomagnetic storms on the Earth's magnetic field, geospace, and atmosphere, and for mitigating the hazards they pose to spacecraft. However, current simulations of intense geomagnetic storms often overestimate the electron flux on the nightside close to Earth. By investigating this discrepancy and analyzing the electrons’ drift trajectories, we find that the overestimation is caused by insufficient amount of electron loss. This is validated by comparing the predicted and measured precipitating electron flux into the atmosphere. We find that the most likely cause for the lack of electron loss are inaccuracies in the description of scattering, associated with chorus waves and electrostatic electron cyclotron harmonic waves, which are currently not included in ring current models. Our findings emphasize the importance of improving our understanding and modeling of the ring current to accurately simulate the dynamics of particles in this region.