Data · dataset · 2026
Impacts of ionospheric conductance on magnetosphere-ionosphere coupling
Listed in National Center for Atmospheric Research
Understanding the consequence of the complex interplay between solar flare and geomagnetic storm on the magnetosphere-ionosphere (M-I) coupling is a critical aspect to space weather research.
Description
This is the first attempt to simulate the concurrent solar flare and geomagnetic storm effects on M-I coupling using the state-of-art geospace model which integrates Lyon-Fedder-Mobarry -Thermosphere-Ionosphere-Electrodynamics General Circulation Model -the Rice Convection ring current Model (LTR) in a self-consistent way.
Our results indicate that dayside E-region electron density enhancements peak nearly at the same time as the flare and these electron density enhancements at middle latitudes are not very sensitive to storm forcing. F-region electron densities also have an immediate response to solar flares but take longer to recover compared to E-region ionosphere, and dayside F-region electron density enhancements are more prominent for more stormy conditions.
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These dayside middle-latitude F-region enhancements intensify tongue of ionization in the polar cap region. Both E- and F-region electron density increases contribute to polar ionosphere conductance enhancements that have both local and global consequences. Flare-induced conductance enhancements tend to reduce the amount of Joule dissipation into upper atmosphere and cross polar cap potential around solar flare peak (12:00 UT), and increase dayside field aligned currents and Joule dissipation afterward (12:20-13:30 UT).
These effects are more appreciable for stronger solar wind driving conditions. These simulation results provide important references for interpreting observed solar activity/cycle dependence of magnetosphere-ionosphere coupling phenomena.
Links
Get the data
- Publisher page n2t.org/ark:/85065/d7t72nd0 ↗
documentation · download · from data ucar edu
Where it is published
- data.ucar.edu /dataset/impacts-of-ionospheric-conductance-on-magnetosphere-io… ↗
National Center for Atmospheric Research dataset page
landing page · from data ucar edu
Catalogue records · 1
- CKAN API data.ucar.edu/api/3/action/package_show?id=968a020d-657c-4b23-9c23-1ee9a8994… ↗
metadata API · from data ucar edu
Topics
- From keywords
- Earth & Environmental Science · Ocean & Atmospheric Science
- Inferred from text
- Geophysics 71% · Simulation 75%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| National Center for Atmospheric Research | 968a020d-657c-4b23-9c23-1ee9a8994fae | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:3706 | enrichment · data ucar edu | taxonomy-embedding@1.1.0 | title+keywords+description (71%) |
| concepts[field].local:field:earth-environmental | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| concepts[method].local:method:simulation | enrichment · data ucar edu | keyword-concept-rules@1.0.0 | title+description (75%) |
| created_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| description | source · data ucar edu | connector:data_ucar_edu@1.0.0 | /notes |
| publication_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 | |
| title | source · data ucar edu | connector:data_ucar_edu@1.0.0 | /title |
| updated_date | source · data ucar edu | connector:data_ucar_edu@1.0.0 |