Data · dataset · 2026
Investigation of the variability of night-time equatorial thermospheric winds over Nigeria, West Africa
Listed in National Center for Atmospheric Research
This study examined the variability of the night-time equatorial thermospheric meridional and zonal wind speeds using an optical Fabry-Perot interferometer (FPI) located in Abuja, Nigeria (Geographic: 8.99 degrees N, 7.39 degrees E; Geomagnetic latitude: -1.60).
Description
The study period covered 9 months with useable data of 139 nights between March 2016 and January 2018. The hourly zonal wind speed is between -124 and 163 ms(-1) and that of the meridional wind ranged between -70 and 95 ms(-1).
Comparison of FPI ground-based measurements with estimates from the Horizontal Wind Model (HWM-14) accurately reproduced the post-midnight meridional component, but for some departure of similar to 50 ms(-1) during pre-midnight. A very good agreement is observed between the predicted and measured zonal winds speed in the month of January 2018. However, the HWM-14 more often underestimated the zonal wind speeds in the months of 2016.
Read the rest (1 more)
Hence, this necessitates a call for improvement of the HWM-14 by using newly observed data in order to better characterize the West African sector. The varying zonal winds showed modal periods of 25.9 and 133.5 days, which are quasi 27 days and quasiterannual periodic variations, respectively. On the meridional wind, oscillatory periods of 133.5 and 23.1 days are seen in year 2016 and 2017, respectively.
Links
Get the data
- Publisher page n2t.org/ark:/85065/d7vm4gnx ↗
documentation · download · from data ucar edu
Where it is published
- data.ucar.edu /dataset/investigation-of-the-variability-of-night-time-equator… ↗
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=62782890-8cd8-48fa-8835-9718afc49… ↗
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 | 62782890-8cd8-48fa-8835-9718afc49472 | 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 |