SOUTHTRAC-GW: An airborne field campaign to explore gravity wave dynamics at the world's strongest hotspot

M Rapp, B Kaifler, A Dörnbrack… - Bulletin of the …, 2021 - journals.ametsoc.org
The southern part of South America and the Antarctic peninsula are known as the world's
strongest hotspot region of stratospheric gravity wave (GW) activity. Large tropospheric …

[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 …

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 …

Atmospheric gravity waves in Aeolus wind lidar observations

TP Banyard, CJ Wright, NP Hindley… - Geophysical …, 2021 - Wiley Online Library
Aeolus is the first Doppler wind lidar in space. It provides unique high‐resolution
measurements of horizontal wind in the sparsely observed upper‐troposphere/lower …

Gravity‐wave‐driven seasonal variability of temperature differences between ECMWF IFS and Rayleigh lidar measurements in the Lee of the Southern Andes

S Gisinger, I Polichtchouk, A Dörnbrack… - Journal of …, 2022 - Wiley Online Library
Long‐term high‐resolution temperature data of the Compact Rayleigh Autonomous Lidar
(CORAL) is used to evaluate temperature and gravity wave (GW) activity in ECMWF …

Measurements of metastable helium in Earth's atmosphere by resonance lidar

B Kaifler, C Geach, HC Büdenbender, A Mezger… - Nature …, 2022 - nature.com
Monitoring and predicting space weather activity is increasingly important given society's
growing reliance on space-based infrastructure but is hampered by a lack of observational …

Energy-scaling of a diode-pumped Alexandrite laser and prototype development for a compact general-purpose Doppler lidar

A Munk, S Scheuer, M Strotkamp, B Jungbluth… - Applied Optics, 2023 - opg.optica.org
We present design and performance data of an energy-scaled diode-pumped Alexandrite
laser in single longitudinal mode operation developed as a beam source in a mobile …

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 …