Data · dataset · 2026
Investigating an unusually large 28-day oscillation in mesospheric temperature over Antarctica using ground-based and satellite measurements
Listed in National Center for Atmospheric Research
The Utah State University Advanced Mesospheric Temperature Mapper was deployed at the Amundsen-Scott South Pole Station in 2010 to measure OH temperature at similar to 87 km as part of an international network to study the mesospheric dynamics over Antarctica.
Description
During the austral winter of 2014, an unusually large amplitude similar to 28-day oscillation in mesospheric temperature was observed for similar to 100 days from the South Pole Station.
This study investigates the characteristics and global structure of this exceptional planetary-scale wave event utilizing ground-based mesospheric OH temperature measurements from two Antarctic stations (South Pole and Rothera) together with satellite temperature measurements from the Microwave Limb Sounder on the Aura satellite and the Solar Occultation For Ice Experiment on the Aeronomy of Ice in the Mesosphere satellite.
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Our analyses have revealed that this large oscillation is a wintertime, high-latitude phenomenon, exhibiting a coherent zonal wave #1 structure below 80-km altitude. At higher altitudes, the wave was confined in longitude between 180 degrees E and 360 degrees E. The amplitude of this oscillation reached similar to 15 K at 85 km, and it was observed to grow with altitude as it extended from the stratosphere into the lower thermosphere in the Southern Hemisphere.
The satellite data further established the existence of this oscillation in the Northern Hemisphere during the boreal wintertime. The main characteristics and global structure of this event as observed in temperature are consistent with the predicted 28-day Rossby Wave (1,4) mode.
Links
Get the data
- Publisher page n2t.org/ark:/85065/d77947d6 ↗
documentation · download · from data ucar edu
Where it is published
- data.ucar.edu /dataset/investigating-an-unusually-large-28-day-oscillation-in… ↗
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=78eb13f4-02fc-43f1-bc2d-6fd90d1a0… ↗
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 | 78eb13f4-02fc-43f1-bc2d-6fd90d1a0c6d | 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 |