Horizontal Wavenumber Spectra Across the Middle Atmosphere From Airborne Lidar Observations During the 2019 Southern Hemispheric SSW

Horizontal Wavenumber Spectra Across the Middle Atmosphere From Airborne Lidar Observations During the 2019 Southern Hemispheric SSW

Horizontal wavenumber spectra across the middle atmosphere are investigated based on density measurements with the Airborne Lidar for Middle Atmosphere research (ALIMA) in the vicinity of the Southern Andes, the Drake passage and the Antarctic peninsula in September 2019. The probed horizontal scale...

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Veröffentlicht in:Geophysical research letters 2023-07, Vol.50 (14), p.n/a
Hauptverfasser: Knobloch, Stefanie, Kaifler, Bernd, Dörnbrack, Andreas, Rapp, Markus
Format: Artikel
Sprache:eng
Schlagworte:
airborne lidar
Aircraft performance
Amplitudes
Atmosphere
Atmospheric dynamics
Atmospheric processes
Atmospheric research
Flight
Gravity waves
horizontal wavenumber spectrum
Lidar
Lidar observations
Lower mantle
Mesosphere
Middle atmosphere
Oscillations
Ozone
Slope
Slopes
Spectra
Spectral analysis
Spectrum analysis
SSW
Statistical methods
Stratosphere
Stratospheric warming
Synthetic data
Vectors
Vertical oscillations
Wavelengths
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Zusammenfassung:Horizontal wavenumber spectra across the middle atmosphere are investigated based on density measurements with the Airborne Lidar for Middle Atmosphere research (ALIMA) in the vicinity of the Southern Andes, the Drake passage and the Antarctic peninsula in September 2019. The probed horizontal scales range from 2000 to 25 km. Spectral slopes are close to k−5/3 in the stratosphere and get shallower for horizontal wavelengths
ISSN:0094-8276
1944-8007
DOI:10.1029/2023GL104357