Data · dataset · 2026
Search for torsional oscillations in isolated sunspots
Listed in National Center for Atmospheric Research
In this work we seek evidence for global torsional oscillations in alpha sunspots.
Description
We have used long time series of continuum intensity and magnetic field vector maps from the Helioseismic and Magnetic Imager (HMI) instrument on board the Solar Dynamics Observatory (SDO) spacecraft. The time series analysed here span the total disk passage of 25 isolated sunspots.
We found no evidence of global long-term periodic oscillations in the azimuthal angle of the sunspot magnetic field within similar to 1 degree. This study could help us to understand the sunspot dynamics and its internal structure.
Links
Get the data
- Publisher page n2t.org/ark:/85065/d7125w51 ↗
documentation · download · from data ucar edu
Where it is published
- data.ucar.edu /dataset/search-for-torsional-oscillations-in-isolated-sunspots ↗
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=f62f7558-117f-41d8-ae0a-60a42fe94… ↗
metadata API · from data ucar edu
Topics
- From keywords
- Earth & Environmental Science · Ocean & Atmospheric Science
- Inferred from text
- Geophysics 70%
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| National Center for Atmospheric Research | f62f7558-117f-41d8-ae0a-60a42fe94bec | 10 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 (70%) |
| 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 |