Impact of September 2019 Antarctic Sudden Stratospheric Warming on Mid‐Latitude Ionosphere and Thermosphere Over North America and Europe
Limited observational evidence indicates that ionospheric changes caused by Arctic sudden stratospheric warmings (SSWs) occur at middle latitudes in the Southern Hemisphere. However, it is not known if a similar interhemispheric linkage is produced by Antarctic SSWs. Here we examine thermospheric an...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , , |
Format: | Text |
Language: | English |
Published: |
John Wiley and Sons Inc.
2021
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9285337/ http://www.ncbi.nlm.nih.gov/pubmed/35844977 https://doi.org/10.1029/2021GL094517 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:9285337 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:9285337 2023-05-15T13:50:20+02:00 Impact of September 2019 Antarctic Sudden Stratospheric Warming on Mid‐Latitude Ionosphere and Thermosphere Over North America and Europe Goncharenko, Larisa P. Harvey, V. Lynn Greer, Katelynn R. Zhang, Shun‐Rong Coster, Anthea J. Paxton, Larry J. 2021-07-30 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9285337/ http://www.ncbi.nlm.nih.gov/pubmed/35844977 https://doi.org/10.1029/2021GL094517 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9285337/ http://www.ncbi.nlm.nih.gov/pubmed/35844977 http://dx.doi.org/10.1029/2021GL094517 © 2021. The Authors. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Geophys Res Lett Research Letter Text 2021 ftpubmed https://doi.org/10.1029/2021GL094517 2022-07-31T01:40:06Z Limited observational evidence indicates that ionospheric changes caused by Arctic sudden stratospheric warmings (SSWs) occur at middle latitudes in the Southern Hemisphere. However, it is not known if a similar interhemispheric linkage is produced by Antarctic SSWs. Here we examine thermospheric and ionospheric anomalies observed in September 2019 at middle latitudes in the Northern Hemisphere. We report persistent (at least 30 days) and strong (up to 80%–100%) positive anomalies in the daytime total electron content (TEC) and increases in the thermospheric O/N(2) ratio in the western region of North America. However, central and eastern regions of North America experience moderate suppression of TEC reaching 20%–40% of the baseline. Different positive and negative anomalies are observed over the European sector. We hypothesize that regional differences in the TEC response could be related to modulation of thermospheric winds during SSWs, changes in thermospheric composition, and differences in declination angle. Text Antarc* Antarctic Arctic PubMed Central (PMC) Antarctic Arctic Geophysical Research Letters 48 15 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Research Letter |
spellingShingle |
Research Letter Goncharenko, Larisa P. Harvey, V. Lynn Greer, Katelynn R. Zhang, Shun‐Rong Coster, Anthea J. Paxton, Larry J. Impact of September 2019 Antarctic Sudden Stratospheric Warming on Mid‐Latitude Ionosphere and Thermosphere Over North America and Europe |
topic_facet |
Research Letter |
description |
Limited observational evidence indicates that ionospheric changes caused by Arctic sudden stratospheric warmings (SSWs) occur at middle latitudes in the Southern Hemisphere. However, it is not known if a similar interhemispheric linkage is produced by Antarctic SSWs. Here we examine thermospheric and ionospheric anomalies observed in September 2019 at middle latitudes in the Northern Hemisphere. We report persistent (at least 30 days) and strong (up to 80%–100%) positive anomalies in the daytime total electron content (TEC) and increases in the thermospheric O/N(2) ratio in the western region of North America. However, central and eastern regions of North America experience moderate suppression of TEC reaching 20%–40% of the baseline. Different positive and negative anomalies are observed over the European sector. We hypothesize that regional differences in the TEC response could be related to modulation of thermospheric winds during SSWs, changes in thermospheric composition, and differences in declination angle. |
format |
Text |
author |
Goncharenko, Larisa P. Harvey, V. Lynn Greer, Katelynn R. Zhang, Shun‐Rong Coster, Anthea J. Paxton, Larry J. |
author_facet |
Goncharenko, Larisa P. Harvey, V. Lynn Greer, Katelynn R. Zhang, Shun‐Rong Coster, Anthea J. Paxton, Larry J. |
author_sort |
Goncharenko, Larisa P. |
title |
Impact of September 2019 Antarctic Sudden Stratospheric Warming on Mid‐Latitude Ionosphere and Thermosphere Over North America and Europe |
title_short |
Impact of September 2019 Antarctic Sudden Stratospheric Warming on Mid‐Latitude Ionosphere and Thermosphere Over North America and Europe |
title_full |
Impact of September 2019 Antarctic Sudden Stratospheric Warming on Mid‐Latitude Ionosphere and Thermosphere Over North America and Europe |
title_fullStr |
Impact of September 2019 Antarctic Sudden Stratospheric Warming on Mid‐Latitude Ionosphere and Thermosphere Over North America and Europe |
title_full_unstemmed |
Impact of September 2019 Antarctic Sudden Stratospheric Warming on Mid‐Latitude Ionosphere and Thermosphere Over North America and Europe |
title_sort |
impact of september 2019 antarctic sudden stratospheric warming on mid‐latitude ionosphere and thermosphere over north america and europe |
publisher |
John Wiley and Sons Inc. |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9285337/ http://www.ncbi.nlm.nih.gov/pubmed/35844977 https://doi.org/10.1029/2021GL094517 |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_source |
Geophys Res Lett |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9285337/ http://www.ncbi.nlm.nih.gov/pubmed/35844977 http://dx.doi.org/10.1029/2021GL094517 |
op_rights |
© 2021. The Authors. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2021GL094517 |
container_title |
Geophysical Research Letters |
container_volume |
48 |
container_issue |
15 |
_version_ |
1766253364069269504 |