Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements
Gravity waves (GWs) are key drivers of atmospheric circulation. Understanding their sources and propagation is essential to improving weather and climate models. We apply a 3D Stockwell Transform to 1 month of stratospheric temperature data from NASA's Atmospheric InfraRed Sounder to obtain 3D...
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ftunivbathcris:oai:purehost.bath.ac.uk:publications/41b1991d-bbe6-4ea8-8a99-776edd3f2dbb 2024-04-28T07:57:07+00:00 Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements Perrett, Jon A. Wright, Corwin J. Hindley, Neil P. Hoffmann, Lars Mitchell, Nicholas J. Preusse, Peter Strube, Cornelia Eckermann, Stephen D. 2021-01-28 https://researchportal.bath.ac.uk/en/publications/41b1991d-bbe6-4ea8-8a99-776edd3f2dbb https://doi.org/10.1029/2020GL088621 http://www.scopus.com/inward/record.url?scp=85099787241&partnerID=8YFLogxK eng eng https://researchportal.bath.ac.uk/en/publications/41b1991d-bbe6-4ea8-8a99-776edd3f2dbb info:eu-repo/semantics/openAccess Perrett , J A , Wright , C J , Hindley , N P , Hoffmann , L , Mitchell , N J , Preusse , P , Strube , C & Eckermann , S D 2021 , ' Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements ' , Geophysical Research Letters , vol. 48 , no. 2 , e2020GL088621 . https://doi.org/10.1029/2020GL088621 AIRS gravity wave GROGRAT ray-tracing Southern Ocean /dk/atira/pure/subjectarea/asjc/1900/1908 name=Geophysics /dk/atira/pure/subjectarea/asjc/1900 name=Earth and Planetary Sciences(all) /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action article 2021 ftunivbathcris https://doi.org/10.1029/2020GL088621 2024-04-09T02:45:17Z Gravity waves (GWs) are key drivers of atmospheric circulation. Understanding their sources and propagation is essential to improving weather and climate models. We apply a 3D Stockwell Transform to 1 month of stratospheric temperature data from NASA's Atmospheric InfraRed Sounder to obtain 3D GW measurements and parameters. We use ray-tracing methods to determine the sources and propagation characteristics of these GWs over the entire Southern Ocean. We trace 1.28 million GW measurements per day for the month of June 2010. Our analysis suggests that ground-based sources around the Andes, Antarctic Peninsula, and Kerguelen play major roles, and that the GWs generated by these and other sources travel large zonal distances. We show evidence that GWs propagate into the 60°S belt, a possible source of “missing momentum flux” in GCMs at this latitude. These results emphasize the need for models to incorporate the possibility that GWs can exhibit large horizontal propagation. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Southern Ocean University of Bath's research portal Geophysical Research Letters 48 2 |
institution |
Open Polar |
collection |
University of Bath's research portal |
op_collection_id |
ftunivbathcris |
language |
English |
topic |
AIRS gravity wave GROGRAT ray-tracing Southern Ocean /dk/atira/pure/subjectarea/asjc/1900/1908 name=Geophysics /dk/atira/pure/subjectarea/asjc/1900 name=Earth and Planetary Sciences(all) /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
spellingShingle |
AIRS gravity wave GROGRAT ray-tracing Southern Ocean /dk/atira/pure/subjectarea/asjc/1900/1908 name=Geophysics /dk/atira/pure/subjectarea/asjc/1900 name=Earth and Planetary Sciences(all) /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action Perrett, Jon A. Wright, Corwin J. Hindley, Neil P. Hoffmann, Lars Mitchell, Nicholas J. Preusse, Peter Strube, Cornelia Eckermann, Stephen D. Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements |
topic_facet |
AIRS gravity wave GROGRAT ray-tracing Southern Ocean /dk/atira/pure/subjectarea/asjc/1900/1908 name=Geophysics /dk/atira/pure/subjectarea/asjc/1900 name=Earth and Planetary Sciences(all) /dk/atira/pure/sustainabledevelopmentgoals/climate_action name=SDG 13 - Climate Action |
description |
Gravity waves (GWs) are key drivers of atmospheric circulation. Understanding their sources and propagation is essential to improving weather and climate models. We apply a 3D Stockwell Transform to 1 month of stratospheric temperature data from NASA's Atmospheric InfraRed Sounder to obtain 3D GW measurements and parameters. We use ray-tracing methods to determine the sources and propagation characteristics of these GWs over the entire Southern Ocean. We trace 1.28 million GW measurements per day for the month of June 2010. Our analysis suggests that ground-based sources around the Andes, Antarctic Peninsula, and Kerguelen play major roles, and that the GWs generated by these and other sources travel large zonal distances. We show evidence that GWs propagate into the 60°S belt, a possible source of “missing momentum flux” in GCMs at this latitude. These results emphasize the need for models to incorporate the possibility that GWs can exhibit large horizontal propagation. |
format |
Article in Journal/Newspaper |
author |
Perrett, Jon A. Wright, Corwin J. Hindley, Neil P. Hoffmann, Lars Mitchell, Nicholas J. Preusse, Peter Strube, Cornelia Eckermann, Stephen D. |
author_facet |
Perrett, Jon A. Wright, Corwin J. Hindley, Neil P. Hoffmann, Lars Mitchell, Nicholas J. Preusse, Peter Strube, Cornelia Eckermann, Stephen D. |
author_sort |
Perrett, Jon A. |
title |
Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements |
title_short |
Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements |
title_full |
Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements |
title_fullStr |
Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements |
title_full_unstemmed |
Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements |
title_sort |
determining gravity wave sources and propagation in the southern hemisphere by ray-tracing airs measurements |
publishDate |
2021 |
url |
https://researchportal.bath.ac.uk/en/publications/41b1991d-bbe6-4ea8-8a99-776edd3f2dbb https://doi.org/10.1029/2020GL088621 http://www.scopus.com/inward/record.url?scp=85099787241&partnerID=8YFLogxK |
genre |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Southern Ocean |
op_source |
Perrett , J A , Wright , C J , Hindley , N P , Hoffmann , L , Mitchell , N J , Preusse , P , Strube , C & Eckermann , S D 2021 , ' Determining Gravity Wave Sources and Propagation in the Southern Hemisphere by Ray-Tracing AIRS Measurements ' , Geophysical Research Letters , vol. 48 , no. 2 , e2020GL088621 . https://doi.org/10.1029/2020GL088621 |
op_relation |
https://researchportal.bath.ac.uk/en/publications/41b1991d-bbe6-4ea8-8a99-776edd3f2dbb |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2020GL088621 |
container_title |
Geophysical Research Letters |
container_volume |
48 |
container_issue |
2 |
_version_ |
1797586824113160192 |