SOUTHTRAC-GW: An Airborne Field Campaign to Explore Gravity Wave Dynamics at the World’s Strongest Hotspot

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 winds are deflected by the Andes and the Antarctic Peninsula and excite GWs that might propagate into the upper mesosphere....

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Bibliographic Details
Published in:Bulletin of the American Meteorological Society
Main Authors: Rapp, Markus, Kaifler, Bernd, Dörnbrack, Andreas, Gisinger, Sonja, Mixa, Tyler, Reichert, Robert, Kaifler, Natalie, Knobloch, Stefanie, Eckert, Ramona, Wildmann, Norman, Giez, Andreas, Krasauskas, Lukas, Preusse, Peter, Geldenhuys, Markus, Riese, Martin, Woiwode, Wolfgang, Friedl-Vallon, Felix, Sinnhuber, Björn-Martin, Torre, Alejandro de la, Alexander, Peter, Hormaechea, Jose Luis, Janches, Diego, Garhammer, Markus, Chau, Jorge L., Conte, J. Federico, Hoor, Peter, Engel, Andreas
Format: Article in Journal/Newspaper
Language:English
Published: American Meteorological Society 2020
Subjects:
Institut für Physik der Atmosphäre
Verkehrsmeteorologie
Lidar
Antarctic
Antarctic Peninsula
Argentina
Drake Passage
The Antarctic
Antarc*
Online Access:https://elib.dlr.de/142126/
https://elib.dlr.de/142126/1/BAMS-Southtrac.pdf
https://doi.org/10.1175/BAMS-D-20-0034.1
Description
Summary: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 winds are deflected by the Andes and the Antarctic Peninsula and excite GWs that might propagate into the upper mesosphere. Satellite observations show large stratospheric GW activity above the mountains, the Drake Passage, and in a belt centered along 60°S. This scientifically highly interesting region for studying GW dynamics was the focus of the Southern Hemisphere Transport, Dynamics, and Chemistry–Gravity Waves (SOUTHTRAC-GW) mission. The German High Altitude and Long Range Research Aircraft (HALO) was deployed to Rio Grande at the southern tip of Argentina in September 2019.

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