Data · dataset · 2026
The effects of stormâenhanced zonal ion drifts and plasmaspheric heat flux on middleâlatitude ionospheric trough
Listed in National Center for Atmospheric Research
This study examines how enhanced zonal ion drifts and plasmaspheric heat flux influence mid‐latitude ionospheric trough dynamics during geomagnetic storms using the Thermosphere Ionosphere Electrodynamic General Circulation Model coupled with a Subauroral Polarization Streams (SAPS) empirical model.
Description
Increasing SAPS‐driven zonal ion drifts from ∼1 to 2 km/s deepened and expanded the trough longitudinally/latitudinally, reducing nighttime TEC by ∼20% within the trough.
Ion temperatures doubled to ∼1,600 K under stronger SAPS due to increased frictional heating, while electron density depletion and temperature enhancements showed weaker responses owing to low electron density limiting electron‐ion collisional heating. Doubling plasmaspheric heat flux amplified electron temperature by ∼120% (∼1,200 K) and reduced electron density by ∼80% (∼2 × 10 5 cm −3 ), with minimal ion/neutral temperature changes from limited electron‐neutral thermal coupling.
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Neutral temperature‐driven atmospheric upwelling decreased O/N 2 ratios, further depleting electron density. These results highlight the critical role of SAPS‐driven ion dynamics and plasmaspheric energy inputs in shaping storm‐time trough morphology through distinct thermal and compositional pathways.
Links
Get the data
- Publisher page n2t.net/ark:/85065/d7rf60g0 ↗
documentation · download · from data ucar edu
Where it is published
- data.ucar.edu /dataset/the-effects-of-stormaenhanced-zonal-ion-drifts-and-pla… ↗
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=7d891b03-f366-4907-93bb-64b045f65… ↗
metadata API · from data ucar edu
Topics
- From keywords
- Earth & Environmental Science · Ocean & Atmospheric Science
Provenance · 1 source records, 7 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| National Center for Atmospheric Research | 7d891b03-f366-4907-93bb-64b045f658cb | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| 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 | |
| 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 |