Data · dataset · 2026
Seasonal, Kp, solar wind, and solar flux variations in long-term single-pass satellite estimates of electron and ion auroral hemispheric power
Listed in National Center for Atmospheric Research
Description
Electron auroral energy flux is characterized by electron hemispheric power (Hpe) estimated since 1978 from National Oceanic and Atmospheric Administration (NOAA) and Defense Meteorological Satellite Program (DMSP) satellites after the estimates were corrected for instrumental problems and adjusted to a common baseline. Similarly, intersatellite adjusted ion hemispheric power (Hpi) estimates come from one MetOp and four NOAA satellites beginning in 1998.
The hemispheric power (Hp) estimates are very crude, coming from single satellite passes referenced to 10 global activity levels, where the Hpi estimates are the difference between the total and the electron Hp (Hpi = Hpt-Hpe). However, hourly averaged NOAA/DMSP Hpe and Hpi estimates correlate well with hourly Polar Ultraviolet Imager (UVI) Hpt and Imager for Magnetopause-to-Aurora Global Exploration (IMAGE) far ultraviolet (FUV) Hpe and Hpi estimates.
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Hpe winter values were larger than summer values ~65% of the time (when geomagnetic activity was moderate or higher), and Hpe were larger in the summer ~35% of the time (typically for low geomagnetic activity). Hpe was ~40% larger at winter solstice than summer solstice for the largest Hp from mostly nightside increases, and Hpe was ~35% larger in summer than winter for the smallest Hp owing to dayside auroral enhancements.
Ion precipitation differed from electron precipitation because it was almost always larger in summer than winter. Hpe and Hpi increased with Kp, solar wind speed (Vsw), and negative Interplanetary Magnetic Field (IMF) Bz , similar to previous studies. Hpi also increased strongly with positive Bz .
For quiet conditions, Hpe increased with increasing 10.7-cm solar flux (Sa), while Hpi increased with Sa up to Sa ~115 for all conditions.
Links
Get the data
- Publisher page n2t.org/ark:/85065/d7028svk ↗
documentation · download · from data ucar edu
Where it is published
- data.ucar.edu /dataset/seasonal-kp-solar-wind-and-solar-flux-variations-in-lo… ↗
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=01e5f7de-d829-4977-8d43-dd308f017… ↗
metadata API · from data ucar edu
Topics
- From keywords
- Earth & Environmental Science · Ocean & Atmospheric Science
- Inferred from text
- Image 75%
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| National Center for Atmospheric Research | 01e5f7de-d829-4977-8d43-dd308f0172ff | 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 | |
| concepts[modality].local:modality:image | 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 |