[HTML][HTML] Australian wildfire smoke in the stratosphere: the decay phase in 2020/2021 and impact on ozone depletion

K Ohneiser, A Ansmann, B Kaifler… - Atmospheric …, 2022 - acp.copernicus.org
Record-breaking wildfires raged in southeastern Australia in late December 2019 and early
January 2020. Rather strong pyrocumulonimbus (pyroCb) convection developed over the …

Atmospheric gravity waves: Processes and parameterization

U Achatz, MJ Alexander, E Becker… - Journal of the …, 2024 - journals.ametsoc.org
Atmospheric predictability from subseasonal to seasonal time scales and climate variability
are both influenced critically by gravity waves (GW). The quality of regional and global …

High‐resolution aircraft observations of turbulence and waves in the free atmosphere and comparison with global model predictions

A Dörnbrack, P Bechtold… - Journal of Geophysical …, 2022 - Wiley Online Library
High‐resolution flight data obtained from in situ measurements in the free atmosphere
aboard the High Altitude and Long Range Research Aircraft (HALO) are used to determine …

[HTML][HTML] Observed and modeled mountain waves from the surface to the mesosphere near the Drake Passage

CG Kruse, MJ Alexander, L Hoffmann… - Journal of the …, 2022 - journals.ametsoc.org
Four state-of-the-science numerical weather prediction (NWP) models were used to perform
mountain wave (MW)-resolving hindcasts over the Drake Passage of a 10-day period in …

Importance of gravity wave forcing for springtime southern polar vortex breakdown as revealed by ERA5

A Gupta, T Birner, A Dörnbrack… - Geophysical Research …, 2021 - Wiley Online Library
Planetary waves (PWs) and gravity waves (GWs) are the key drivers of middle atmospheric
circulation. Insufficient observations and inaccurate model representation of GWs limit our …

[HTML][HTML] A Compact Rayleigh Autonomous Lidar (CORAL) for the middle atmosphere

B Kaifler, N Kaifler - Atmospheric Measurement Techniques, 2021 - amt.copernicus.org
Abstract The Compact Rayleigh Autonomous Lidar (CORAL) is the first fully autonomous
middle atmosphere lidar system to provide density and temperature profiles from 15 to …

Observations of gravity wave refraction and its causes and consequences

M Geldenhuys, B Kaifler, P Preusse… - Journal of …, 2023 - Wiley Online Library
Horizontal gravity wave (GW) refraction was observed around the Andes and Drake
Passage during the SouthTRAC campaign. GWs interact with the background wind through …

Oblique propagation and refraction of gravity waves over the Andes observed by GLORIA and ALIMA during the SouthTRAC campaign

L Krasauskas, B Kaifler, S Rhode… - Journal of …, 2023 - Wiley Online Library
Gravity waves (GW) carry energy and momentum from the troposphere to the middle
atmosphere and have a strong influence on the circulation there. Global atmospheric …

[HTML][HTML] Propagation paths and source distributions of resolved gravity waves in ECMWF-IFS analysis fields around the southern polar night jet

C Strube, P Preusse, M Ern… - … Chemistry and Physics, 2021 - acp.copernicus.org
In the southern winter polar stratosphere, the distribution of gravity wave momentum flux in
many state-of-the-art climate simulations is inconsistent with long-time satellite and …

High‐cadence lidar observations of middle atmospheric temperature and gravity waves at the southern Andes hot spot

R Reichert, B Kaifler, N Kaifler… - Journal of …, 2021 - Wiley Online Library
Abstract The Southern Andes are the strongest hot spot for atmospheric gravity waves (GWs)
in the stratosphere. Yet, until recently, no high‐cadence measurements of GWs within the …