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Tropical Stratospheric Circulation and Ozone Coupled to Pacific Multi-Decadal Variability

Iglesias-Suarez, Fernando and Wild, Oliver and Kinnison, Douglas E. and Garcia, Rolando R. and Marsh, Daniel R. and Lamarque, Jean-Francois and Ryan, Edmund M. and Davis, Sean M. and Eichinger, Roland and Saiz-Lopez, Alfonso and Young, Paul J. (2021) Tropical Stratospheric Circulation and Ozone Coupled to Pacific Multi-Decadal Variability. Geophysical Research Letters, pp. 1-10. Wiley. doi: 10.1029/2020GL092162. ISSN 0094-8276.

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Official URL: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020GL092162

Abstract

Natural variability is a key element of the climate system and can mask human-induced changes. Here, we are interested in the naturally varying strength of the stratospheric global circulation and how this impacts the composition of the stratosphere. Using observations and model simulations, we show that slowly changing (multi-decadal) natural variability in the Pacific Ocean is reflected in the stratospheric circulation. This link helps us to better understand structural changes in the stratospheric circulation arising due to human interferences. In turn, slow transport variability reconciles recent low levels of ozone in the middle tropical stratosphere, which otherwise are in disagreement with the expected ozone recovery. These results have implications for both reconciling theory and observed changes in the stratospheric circulation, as well as better understanding the rate of stratospheric ozone recovery.

Item URL in elib:https://elib.dlr.de/142714/
Document Type:Article
Title:Tropical Stratospheric Circulation and Ozone Coupled to Pacific Multi-Decadal Variability
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Iglesias-Suarez, FernandoDLR, IPAhttps://orcid.org/0000-0003-3403-8245
Wild, OliverLancaster Environment Centre, Lancaster University, Lancaster, UKUNSPECIFIED
Kinnison, Douglas E.NCAR, Boulder, CO, USAUNSPECIFIED
Garcia, Rolando R.NCAR, Boulder, CO, USAUNSPECIFIED
Marsh, Daniel R.NCAR, Boulder, CO, USAUNSPECIFIED
Lamarque, Jean-FrancoisNCAR, Boulder, USAhttps://orcid.org/0000-0002-4225-5074
Ryan, Edmund M.Manchester UniversityUNSPECIFIED
Davis, Sean M.NOAA, Boulder, CO, USAUNSPECIFIED
Eichinger, RolandDLR, IPAUNSPECIFIED
Saiz-Lopez, AlfonsoDepartment of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano (CSIC), Madrid, SpainUNSPECIFIED
Young, Paul J.Lancaster University, UKUNSPECIFIED
Date:1 June 2021
Journal or Publication Title:Geophysical Research Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1029/2020GL092162
Page Range:pp. 1-10
Publisher:Wiley
ISSN:0094-8276
Status:Published
Keywords:multi-decadal; natural variability; Brewer-Dobson circulation; ozone; Pacific Ocean
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Atmospheric and climate research
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Earth System Model Evaluation and Analysis
Institute of Atmospheric Physics > Earth System Modelling
Deposited By: Iglesias-Suarez, Fernando
Deposited On:11 Jun 2021 09:18
Last Modified:11 Jun 2021 09:18

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