Data · dataset · 2026
Prediction of the thermospheric and ionospheric responses to the 21 June 2020 annular solar eclipse
Listed in National Center for Atmospheric Research
On 21 June 2020, an annular solar eclipse will traverse the low latitudes from Africa to Southeast Asia.
Description
The highest latitude of the maximum eclipse obscuration is approximately 30°. This low-latitude solar eclipse provides a unique and unprecedented opportunity to explore the impact of the eclipse on the low-latitude ionosphereâthermosphere (IâT) system, especially in the equatorial ionization anomaly region.
In this study, we describe a quantitative prediction of the impact of this upcoming solar eclipse on the IâT system by using ThermosphereâIonosphereâElectrodynamics General Circulation Model simulations. A prominent total electron content (TEC) enhancement of around 2 TEC units occurs in the equatorial ionization anomaly region even when this region is still in the shadow of the eclipse. This TEC enhancement lasts for nearly 4.5 hours, long after the solar eclipse has ended.
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Further model control simulations indicate that the TEC increase is mainly caused by the eclipse-induced transequatorial plasma transport associated with northward neutral wind perturbations, which result from eclipse-induced pressure gradient changes. The results illustrate that the effect of the solar eclipse on the IâT system is not transient and linear but should be considered a dynamically and energetically coupled system.
Links
Get the data
- Publisher page n2t.org/ark:/85065/d7h70kt0 ↗
documentation · download · from data ucar edu
Where it is published
- data.ucar.edu /dataset/prediction-of-the-thermospheric-and-ionospheric-respon… ↗
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=e1baa24f-18d4-4937-b9b7-b3fb85ad5… ↗
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 | e1baa24f-18d4-4937-b9b7-b3fb85ad5cbb | 9 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 |