Correlations of mesospheric winds with subtle motion of the Arctic polar vortex
This paper investigates the relationship between high latitude upper mesospheric winds and the state of the stratospheric polar vortex in the absence of major sudden stratospheric warmings. A ground based Michelson Interferometer stationed at Resolute Bay (74°43' N, 94°58' W) in the Canadi...
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ftdoajarticles:oai:doaj.org/article:0c095a4812cb4daba4d3eb4cd2d5aa99 2023-05-15T14:56:18+02:00 Correlations of mesospheric winds with subtle motion of the Arctic polar vortex Y. Bhattacharya A. J. Gerrard 2010-01-01T00:00:00Z https://doaj.org/article/0c095a4812cb4daba4d3eb4cd2d5aa99 EN eng Copernicus Publications http://www.atmos-chem-phys.net/10/431/2010/acp-10-431-2010.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/0c095a4812cb4daba4d3eb4cd2d5aa99 Atmospheric Chemistry and Physics, Vol 10, Iss 2, Pp 431-436 (2010) Physics QC1-999 Chemistry QD1-999 article 2010 ftdoajarticles 2022-12-31T11:51:10Z This paper investigates the relationship between high latitude upper mesospheric winds and the state of the stratospheric polar vortex in the absence of major sudden stratospheric warmings. A ground based Michelson Interferometer stationed at Resolute Bay (74°43' N, 94°58' W) in the Canadian High Arctic is used to measure mesopause region neutral winds using the hydroxyl (OH) Meinel-band airglow emission (central altitude of ~85 km). These observed winds are compared to analysis winds in the upper stratosphere during November and December of 1995 and 1996; years characterized as cold, stable polar vortex periods. Correlation of mesopause wind speeds with those from the upper stratosphere is found to be significant for the 1996 season when the polar vortex is subtly displaced off its initial location by a strong Aleutian High. These mesopause winds are observed to lead stratospheric winds by approximately two days with increasing (decreasing) mesospheric winds predictive of decreasing (increasing) stratospheric winds. No statistically significant correlations are found for the 1995 season when there is no such displacement of the polar vortex. Article in Journal/Newspaper Arctic Resolute Bay Directory of Open Access Journals: DOAJ Articles Arctic Resolute Bay ENVELOPE(-94.842,-94.842,74.677,74.677) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 Y. Bhattacharya A. J. Gerrard Correlations of mesospheric winds with subtle motion of the Arctic polar vortex |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
This paper investigates the relationship between high latitude upper mesospheric winds and the state of the stratospheric polar vortex in the absence of major sudden stratospheric warmings. A ground based Michelson Interferometer stationed at Resolute Bay (74°43' N, 94°58' W) in the Canadian High Arctic is used to measure mesopause region neutral winds using the hydroxyl (OH) Meinel-band airglow emission (central altitude of ~85 km). These observed winds are compared to analysis winds in the upper stratosphere during November and December of 1995 and 1996; years characterized as cold, stable polar vortex periods. Correlation of mesopause wind speeds with those from the upper stratosphere is found to be significant for the 1996 season when the polar vortex is subtly displaced off its initial location by a strong Aleutian High. These mesopause winds are observed to lead stratospheric winds by approximately two days with increasing (decreasing) mesospheric winds predictive of decreasing (increasing) stratospheric winds. No statistically significant correlations are found for the 1995 season when there is no such displacement of the polar vortex. |
format |
Article in Journal/Newspaper |
author |
Y. Bhattacharya A. J. Gerrard |
author_facet |
Y. Bhattacharya A. J. Gerrard |
author_sort |
Y. Bhattacharya |
title |
Correlations of mesospheric winds with subtle motion of the Arctic polar vortex |
title_short |
Correlations of mesospheric winds with subtle motion of the Arctic polar vortex |
title_full |
Correlations of mesospheric winds with subtle motion of the Arctic polar vortex |
title_fullStr |
Correlations of mesospheric winds with subtle motion of the Arctic polar vortex |
title_full_unstemmed |
Correlations of mesospheric winds with subtle motion of the Arctic polar vortex |
title_sort |
correlations of mesospheric winds with subtle motion of the arctic polar vortex |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doaj.org/article/0c095a4812cb4daba4d3eb4cd2d5aa99 |
long_lat |
ENVELOPE(-94.842,-94.842,74.677,74.677) |
geographic |
Arctic Resolute Bay |
geographic_facet |
Arctic Resolute Bay |
genre |
Arctic Resolute Bay |
genre_facet |
Arctic Resolute Bay |
op_source |
Atmospheric Chemistry and Physics, Vol 10, Iss 2, Pp 431-436 (2010) |
op_relation |
http://www.atmos-chem-phys.net/10/431/2010/acp-10-431-2010.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/0c095a4812cb4daba4d3eb4cd2d5aa99 |
_version_ |
1766328315643166720 |