Stratospheric temperature and ozone anomalies associated with the 2020 Australian New Year fires
Stratospheric aerosol, temperature, and ozone anomalies after the 2020 Australian bushfires are documented from satellite observations. Aerosol extinction is enhanced in the Southern Hemisphere (SH) lower stratosphere (LS) in early 2020, comparable in magnitude to the Calbuco eruption in 2015. Warm...
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Language: | English |
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Online Access: | https://doi.org/10.1029/2021GL095898 |
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ftncar:oai:drupal-site.org:articles_24907 2024-04-14T08:04:09+00:00 Stratospheric temperature and ozone anomalies associated with the 2020 Australian New Year fires Rieger, L. A. (author) Randel, William J. (author) Bourassa, A. E. (author) Solomon, S. (author) 2021-12-28 https://doi.org/10.1029/2021GL095898 en eng Geophysical Research Letters--Geophys Res Lett--0094-8276--1944-8007 OMPS-NPP L2 LP USask Aerosol Extinction Vertical Profile swath daily V1.1--10.5281/zenodo.4029555 articles:24907 doi:10.1029/2021GL095898 ark:/85065/d7ks6w1t Copyright 2021 American Geophysical Union. article Text 2021 ftncar https://doi.org/10.1029/2021GL095898 2024-03-21T18:00:26Z Stratospheric aerosol, temperature, and ozone anomalies after the 2020 Australian bushfires are documented from satellite observations. Aerosol extinction is enhanced in the Southern Hemisphere (SH) lower stratosphere (LS) in early 2020, comparable in magnitude to the Calbuco eruption in 2015. Warm temperature anomalies of 1–2 K occur in the SH LS during January-April 2020 and are coincident with enhanced aerosols. Radiative heating is indicated through anomalous temperature correlations between lower and higher latitudes. LS ozone shows midlatitude decreases several months after the aerosol maximum and before the polar vortex breakup, reaching extreme minima over the available OMPS record since 2011. Antarctic ozone depletion in the LS in 2020 reached a decadal low for both magnitude and persistence during November-December, along with record low polar temperatures and a strong polar vortex. Overall, the polar ozone depletion, temperature, and polar vortex evolution broadly resembled the effects of the Calbuco eruption in 2015. Article in Journal/Newspaper Antarc* Antarctic OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Antarctic Geophysical Research Letters 48 24 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
Stratospheric aerosol, temperature, and ozone anomalies after the 2020 Australian bushfires are documented from satellite observations. Aerosol extinction is enhanced in the Southern Hemisphere (SH) lower stratosphere (LS) in early 2020, comparable in magnitude to the Calbuco eruption in 2015. Warm temperature anomalies of 1–2 K occur in the SH LS during January-April 2020 and are coincident with enhanced aerosols. Radiative heating is indicated through anomalous temperature correlations between lower and higher latitudes. LS ozone shows midlatitude decreases several months after the aerosol maximum and before the polar vortex breakup, reaching extreme minima over the available OMPS record since 2011. Antarctic ozone depletion in the LS in 2020 reached a decadal low for both magnitude and persistence during November-December, along with record low polar temperatures and a strong polar vortex. Overall, the polar ozone depletion, temperature, and polar vortex evolution broadly resembled the effects of the Calbuco eruption in 2015. |
author2 |
Rieger, L. A. (author) Randel, William J. (author) Bourassa, A. E. (author) Solomon, S. (author) |
format |
Article in Journal/Newspaper |
title |
Stratospheric temperature and ozone anomalies associated with the 2020 Australian New Year fires |
spellingShingle |
Stratospheric temperature and ozone anomalies associated with the 2020 Australian New Year fires |
title_short |
Stratospheric temperature and ozone anomalies associated with the 2020 Australian New Year fires |
title_full |
Stratospheric temperature and ozone anomalies associated with the 2020 Australian New Year fires |
title_fullStr |
Stratospheric temperature and ozone anomalies associated with the 2020 Australian New Year fires |
title_full_unstemmed |
Stratospheric temperature and ozone anomalies associated with the 2020 Australian New Year fires |
title_sort |
stratospheric temperature and ozone anomalies associated with the 2020 australian new year fires |
publishDate |
2021 |
url |
https://doi.org/10.1029/2021GL095898 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Geophysical Research Letters--Geophys Res Lett--0094-8276--1944-8007 OMPS-NPP L2 LP USask Aerosol Extinction Vertical Profile swath daily V1.1--10.5281/zenodo.4029555 articles:24907 doi:10.1029/2021GL095898 ark:/85065/d7ks6w1t |
op_rights |
Copyright 2021 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2021GL095898 |
container_title |
Geophysical Research Letters |
container_volume |
48 |
container_issue |
24 |
_version_ |
1796300559227027456 |