The Coexistence of Gravity Waves From Diverse Sources During a SOUTHTRAC Flight
We use observations from one of the SOUTHTRAC (Southern Hemisphere Transport, Dynamics, and Chemistry) Campaign flights in Patagonia and the Antarctic Peninsula during September 2019 to analyze possible sources of gravity waves (GW) in this hotspot during austral late winter and early spring. Data f...
Published in: | Journal of Geophysical Research: Atmospheres |
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Online Access: | https://elib.dlr.de/194066/ https://elib.dlr.de/194066/1/JGR%20Atmospheres%20-%202023%20-%20Alexander%20-%20The%20Coexistence%20of%20Gravity%20Waves%20From%20Diverse%20Sources%20During%20a%20SOUTHTRAC%20Flight.pdf https://doi.org/10.1029/2022JD037276 |
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ftdlr:oai:elib.dlr.de:194066 2023-05-15T13:51:36+02:00 The Coexistence of Gravity Waves From Diverse Sources During a SOUTHTRAC Flight Alexander, Peter de la Torre, Alejandro Llamedo, P. Hierro, R. Marcos, T. Kaifler, Bernd Kaifler, Natalie Geldenhuys, Markus Preusse, Peter Giez, Andreas Rapp, Markus Hormaechea, J. L. 2023-02-08 application/pdf https://elib.dlr.de/194066/ https://elib.dlr.de/194066/1/JGR%20Atmospheres%20-%202023%20-%20Alexander%20-%20The%20Coexistence%20of%20Gravity%20Waves%20From%20Diverse%20Sources%20During%20a%20SOUTHTRAC%20Flight.pdf https://doi.org/10.1029/2022JD037276 en eng Wiley https://elib.dlr.de/194066/1/JGR%20Atmospheres%20-%202023%20-%20Alexander%20-%20The%20Coexistence%20of%20Gravity%20Waves%20From%20Diverse%20Sources%20During%20a%20SOUTHTRAC%20Flight.pdf Alexander, Peter und de la Torre, Alejandro und Llamedo, P. und Hierro, R. und Marcos, T. und Kaifler, Bernd und Kaifler, Natalie und Geldenhuys, Markus und Preusse, Peter und Giez, Andreas und Rapp, Markus und Hormaechea, J. L. (2023) The Coexistence of Gravity Waves From Diverse Sources During a SOUTHTRAC Flight. Journal of Geophysical Research: Atmospheres, 128 (5), Seiten 1-32. Wiley. doi:10.1029/2022JD037276 <https://doi.org/10.1029/2022JD037276>. ISSN 2169-897X. cc_by CC-BY Institut für Physik der Atmosphäre Lidar Mess- und Sensortechnik OP Zeitschriftenbeitrag PeerReviewed 2023 ftdlr https://doi.org/10.1029/2022JD037276 2023-03-06T00:16:23Z We use observations from one of the SOUTHTRAC (Southern Hemisphere Transport, Dynamics, and Chemistry) Campaign flights in Patagonia and the Antarctic Peninsula during September 2019 to analyze possible sources of gravity waves (GW) in this hotspot during austral late winter and early spring. Data from two of the instruments onboard the German High Altitude and Long Range Research Aircraft (HALO) are employed: the Airborne Lidar for Middle Atmosphere research (ALIMA) and the Basic HALO Measurement and Sensor System (BAHAMAS). The former provides vertical temperature profiles along the trajectory, while the latter gives the three components of velocity, pressure, and temperature at the flight position. GW-induced perturbations are obtained from these observations. We include numerical simulations from the Weather Research and Forecast (WRF) model to place a four-dimensional context for the GW observed during the flight and to present possible interpretations of the measurements, for example, the orientation or eventual propagation sense of the waves may not be inferred using only data obtained onboard. We first evaluate agreements and discrepancies between the model outcomes and the observations. This allowed us an assessment of the WRF performance in the generation, propagation, and eventual dissipation of diverse types of GW through the troposphere, stratosphere, and lower mesosphere. We then analyze the coexistence and interplay of mountain waves (MW) and non-orographic (NO) GW. The MW dominate above topographic areas and in the direction of the so-called GW belt, whereas the latter waves are mainly relevant above oceanic zones. WRF simulates NOGW as mainly upward propagating entities above the lower stratosphere. Model runs show that deep vertical propagation conditions are in general favorable during this flight but also that in the upper stratosphere and lower mesosphere and mainly above topography there is some potential for wave breaking. The numerical simulations evaluate the GW drag for the whole flight ... Other Non-Article Part of Journal/Newspaper Antarc* Antarctic Antarctic Peninsula German Aerospace Center: elib - DLR electronic library Antarctic The Antarctic Antarctic Peninsula Austral Patagonia Journal of Geophysical Research: Atmospheres 128 5 |
institution |
Open Polar |
collection |
German Aerospace Center: elib - DLR electronic library |
op_collection_id |
ftdlr |
language |
English |
topic |
Institut für Physik der Atmosphäre Lidar Mess- und Sensortechnik OP |
spellingShingle |
Institut für Physik der Atmosphäre Lidar Mess- und Sensortechnik OP Alexander, Peter de la Torre, Alejandro Llamedo, P. Hierro, R. Marcos, T. Kaifler, Bernd Kaifler, Natalie Geldenhuys, Markus Preusse, Peter Giez, Andreas Rapp, Markus Hormaechea, J. L. The Coexistence of Gravity Waves From Diverse Sources During a SOUTHTRAC Flight |
topic_facet |
Institut für Physik der Atmosphäre Lidar Mess- und Sensortechnik OP |
description |
We use observations from one of the SOUTHTRAC (Southern Hemisphere Transport, Dynamics, and Chemistry) Campaign flights in Patagonia and the Antarctic Peninsula during September 2019 to analyze possible sources of gravity waves (GW) in this hotspot during austral late winter and early spring. Data from two of the instruments onboard the German High Altitude and Long Range Research Aircraft (HALO) are employed: the Airborne Lidar for Middle Atmosphere research (ALIMA) and the Basic HALO Measurement and Sensor System (BAHAMAS). The former provides vertical temperature profiles along the trajectory, while the latter gives the three components of velocity, pressure, and temperature at the flight position. GW-induced perturbations are obtained from these observations. We include numerical simulations from the Weather Research and Forecast (WRF) model to place a four-dimensional context for the GW observed during the flight and to present possible interpretations of the measurements, for example, the orientation or eventual propagation sense of the waves may not be inferred using only data obtained onboard. We first evaluate agreements and discrepancies between the model outcomes and the observations. This allowed us an assessment of the WRF performance in the generation, propagation, and eventual dissipation of diverse types of GW through the troposphere, stratosphere, and lower mesosphere. We then analyze the coexistence and interplay of mountain waves (MW) and non-orographic (NO) GW. The MW dominate above topographic areas and in the direction of the so-called GW belt, whereas the latter waves are mainly relevant above oceanic zones. WRF simulates NOGW as mainly upward propagating entities above the lower stratosphere. Model runs show that deep vertical propagation conditions are in general favorable during this flight but also that in the upper stratosphere and lower mesosphere and mainly above topography there is some potential for wave breaking. The numerical simulations evaluate the GW drag for the whole flight ... |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Alexander, Peter de la Torre, Alejandro Llamedo, P. Hierro, R. Marcos, T. Kaifler, Bernd Kaifler, Natalie Geldenhuys, Markus Preusse, Peter Giez, Andreas Rapp, Markus Hormaechea, J. L. |
author_facet |
Alexander, Peter de la Torre, Alejandro Llamedo, P. Hierro, R. Marcos, T. Kaifler, Bernd Kaifler, Natalie Geldenhuys, Markus Preusse, Peter Giez, Andreas Rapp, Markus Hormaechea, J. L. |
author_sort |
Alexander, Peter |
title |
The Coexistence of Gravity Waves From Diverse Sources During a SOUTHTRAC Flight |
title_short |
The Coexistence of Gravity Waves From Diverse Sources During a SOUTHTRAC Flight |
title_full |
The Coexistence of Gravity Waves From Diverse Sources During a SOUTHTRAC Flight |
title_fullStr |
The Coexistence of Gravity Waves From Diverse Sources During a SOUTHTRAC Flight |
title_full_unstemmed |
The Coexistence of Gravity Waves From Diverse Sources During a SOUTHTRAC Flight |
title_sort |
coexistence of gravity waves from diverse sources during a southtrac flight |
publisher |
Wiley |
publishDate |
2023 |
url |
https://elib.dlr.de/194066/ https://elib.dlr.de/194066/1/JGR%20Atmospheres%20-%202023%20-%20Alexander%20-%20The%20Coexistence%20of%20Gravity%20Waves%20From%20Diverse%20Sources%20During%20a%20SOUTHTRAC%20Flight.pdf https://doi.org/10.1029/2022JD037276 |
geographic |
Antarctic The Antarctic Antarctic Peninsula Austral Patagonia |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Austral Patagonia |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_relation |
https://elib.dlr.de/194066/1/JGR%20Atmospheres%20-%202023%20-%20Alexander%20-%20The%20Coexistence%20of%20Gravity%20Waves%20From%20Diverse%20Sources%20During%20a%20SOUTHTRAC%20Flight.pdf Alexander, Peter und de la Torre, Alejandro und Llamedo, P. und Hierro, R. und Marcos, T. und Kaifler, Bernd und Kaifler, Natalie und Geldenhuys, Markus und Preusse, Peter und Giez, Andreas und Rapp, Markus und Hormaechea, J. L. (2023) The Coexistence of Gravity Waves From Diverse Sources During a SOUTHTRAC Flight. Journal of Geophysical Research: Atmospheres, 128 (5), Seiten 1-32. Wiley. doi:10.1029/2022JD037276 <https://doi.org/10.1029/2022JD037276>. ISSN 2169-897X. |
op_rights |
cc_by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2022JD037276 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
128 |
container_issue |
5 |
_version_ |
1766255567151562752 |