A connection from stratospheric ozone to El Niño-Southern Oscillation

Abstract We use reanalysis and observational data to link the lower stratospheric ozone regulation of the ultraviolet radiation (UV-B) component of solar energy to ENSO modulation. Results indicate that during ENSO extremes, the Walker Circulation (WC) and Brewer Dobson Circulation are related to lo...

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Autores principales:	Desmond Manatsa, Geoffrey Mukwada
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ab043ff64aed4e24a037a5a42819b903
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id	oai:doaj.org-article:ab043ff64aed4e24a037a5a42819b903
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spelling	oai:doaj.org-article:ab043ff64aed4e24a037a5a42819b9032021-12-02T11:40:22ZA connection from stratospheric ozone to El Niño-Southern Oscillation10.1038/s41598-017-05111-82045-2322https://doaj.org/article/ab043ff64aed4e24a037a5a42819b9032017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05111-8https://doaj.org/toc/2045-2322Abstract We use reanalysis and observational data to link the lower stratospheric ozone regulation of the ultraviolet radiation (UV-B) component of solar energy to ENSO modulation. Results indicate that during ENSO extremes, the Walker Circulation (WC) and Brewer Dobson Circulation are related to lower stratospheric ozone alterations east of the date line over the Pacific. These in turn are linked to upper tropospheric anomalous dipole temperature patterns on either side of the equator. The ensuing changes in geopotential height values do not only drive equatorial zonal wind anomalies in the upper troposphere that are reversed at the equatorial surface, but also impact on the intensity of the South Pacific High circulation. When the WC is enhanced, a La Nina type of circulation is indentified but if the circulation cell is inverted, the anomalous circulation results in an El Nino. Though the anomalous lower stratospheric ozone peaks during austral summer it is significant throughout the ENSO lifecycle. Hence, ENSO structure and variability are mainly linked to the lower stratospheric ozone instigated internal dynamics of the Pacific atmosphere. The ENSO forcing most likely originates from the ozone related regulation of the incoming solar UV-B radiation rather than the Pacific Ocean surface.Desmond ManatsaGeoffrey MukwadaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Desmond Manatsa Geoffrey Mukwada A connection from stratospheric ozone to El Niño-Southern Oscillation
description	Abstract We use reanalysis and observational data to link the lower stratospheric ozone regulation of the ultraviolet radiation (UV-B) component of solar energy to ENSO modulation. Results indicate that during ENSO extremes, the Walker Circulation (WC) and Brewer Dobson Circulation are related to lower stratospheric ozone alterations east of the date line over the Pacific. These in turn are linked to upper tropospheric anomalous dipole temperature patterns on either side of the equator. The ensuing changes in geopotential height values do not only drive equatorial zonal wind anomalies in the upper troposphere that are reversed at the equatorial surface, but also impact on the intensity of the South Pacific High circulation. When the WC is enhanced, a La Nina type of circulation is indentified but if the circulation cell is inverted, the anomalous circulation results in an El Nino. Though the anomalous lower stratospheric ozone peaks during austral summer it is significant throughout the ENSO lifecycle. Hence, ENSO structure and variability are mainly linked to the lower stratospheric ozone instigated internal dynamics of the Pacific atmosphere. The ENSO forcing most likely originates from the ozone related regulation of the incoming solar UV-B radiation rather than the Pacific Ocean surface.
format	article
author	Desmond Manatsa Geoffrey Mukwada
author_facet	Desmond Manatsa Geoffrey Mukwada
author_sort	Desmond Manatsa
title	A connection from stratospheric ozone to El Niño-Southern Oscillation
title_short	A connection from stratospheric ozone to El Niño-Southern Oscillation
title_full	A connection from stratospheric ozone to El Niño-Southern Oscillation
title_fullStr	A connection from stratospheric ozone to El Niño-Southern Oscillation
title_full_unstemmed	A connection from stratospheric ozone to El Niño-Southern Oscillation
title_sort	connection from stratospheric ozone to el niño-southern oscillation
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/ab043ff64aed4e24a037a5a42819b903
work_keys_str_mv	AT desmondmanatsa aconnectionfromstratosphericozonetoelninosouthernoscillation AT geoffreymukwada aconnectionfromstratosphericozonetoelninosouthernoscillation AT desmondmanatsa connectionfromstratosphericozonetoelninosouthernoscillation AT geoffreymukwada connectionfromstratosphericozonetoelninosouthernoscillation
_version_	1718395664262496256

A connection from stratospheric ozone to El Niño-Southern Oscillation

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