edu.ucar.opensky::articles:43314
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2025-12-24T17:51:29.016669
ISO 19115-2 Geographic Information - Metadata - Part 2:
Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
https://n2t.net/ark:/85065/d77d30k6
https://doi.org/10.5281/zenodo.14939492
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Related Dataset #1
Sources and Regional Attributions to Upper Troposphere Nitrogen Oxides during the Asian Summer Monsoon
Gravity wave activity during the 2024 sudden stratospheric warmings observed by atmospheric waves experiment (AWE)
2025-04-16T00:00:00Z
publication
https://n2t.net/ark:/85065/d77d30k6
https://doi.org/10.1029/2024GL114187
Zhang, J.
author
Zhao, Y.
author
Pautet, P.
author
Scherliess, L.
author
Taylor, M. J.
author
Liu, Hanli
author
UCAR/NCAR - Library
publisher
The National Aeronautics and Space Administration (NASA) Atmospheric Waves Experiment (AWE) instrument, launched in November 2023, provides direct observation of small‐scale (30–300 km) gravity waves (GWs) in the mesosphere on a global scale. This work examined changes in GW activity observed by AWE during two major Sudden Stratospheric Warmings (SSWs) in the 2023 and 2024 winter season. Northern Hemisphere (NH) midlatitude GW activity during these events shared similarities. Variations in mesospheric GW activity showed an evident correlation with the magnitude of zonal wind in the upper stratosphere. NH midlatitude GW activity at 87 km was reduced following the onset of SSWs, likely caused by wind filtering and wave saturation. The upward propagation of GWs was suppressed when the zonal wind reversed from eastward to westward in the upper stratosphere. In regions where the zonal wind weakened but remained eastward, the weakened GWs could be due to their refraction to shorter vertical wavelengths.
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2016-01-01T00:00:00Z
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<span style="font-family:Arial;font-size:10pt;font-style:normal;" data-sheets-root="1">Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.</span>
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