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An ‘‘island'' in the stratosphere - on the enhanced annual variation of water vapour in the middle and upper stratosphere in the southern tropics and subtropics

Lossow, Stephan and Garny, Hella and Jöckel, Patrick (2017) An ‘‘island'' in the stratosphere - on the enhanced annual variation of water vapour in the middle and upper stratosphere in the southern tropics and subtropics. Atmospheric Chemistry and Physics (ACP), 17 (18), pp. 11521-11539. Copernicus Publications. DOI: 10.5194/acp-17-11521-2017 ISSN 1680-7316

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Official URL: https://www.atmos-chem-phys.net/17/11521/2017/

Abstract

The amplitude of the annual variation in water vapour exhibits a distinct isolated maximum in the middle and upper stratosphere in the southern tropics and subtropics, peaking typically around 15° S in latitude and close to 3 hPa (∼  40.5 km) in altitude. This enhanced annual variation is primarily related to the Brewer–Dobson circulation and hence also visible in other trace gases. So far this feature has not gained much attention in the literature and the present work aims to add more prominence. Using Envisat/MIPAS (Environmental Satellite/Michelson Interferometer for Passive Atmospheric Sounding) observations and ECHAM/MESSy (European Centre for Medium-Range Weather Forecasts Hamburg/Modular Earth Submodel System) Atmospheric Chemistry (EMAC) simulations we provide a dedicated illustration and a full account of the reasons for this enhanced annual variation.

Item URL in elib:https://elib.dlr.de/114521/
Document Type:Article
Title:An ‘‘island'' in the stratosphere - on the enhanced annual variation of water vapour in the middle and upper stratosphere in the southern tropics and subtropics
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lossow, StephanKIT, Institute for Meteorology and Climate Research, LeopoldshafenUNSPECIFIED
Garny, Helladlr, ipaUNSPECIFIED
Jöckel, Patrickdlr, ipahttps://orcid.org/0000-0002-8964-1394
Date:27 September 2017
Journal or Publication Title:Atmospheric Chemistry and Physics (ACP)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:17
DOI :10.5194/acp-17-11521-2017
Page Range:pp. 11521-11539
Publisher:Copernicus Publications
ISSN:1680-7316
Status:Published
Keywords:EMAC, MESSy, Modular Earth Submodel System, Stratosphere, water vapour, Brewer Dobson Circulation, ENVISAT, MIPAS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Atmosphären- und Klimaforschung, R - Project Climatic relevance of atmospheric tracer gases, aerosols and clouds
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Earth System Modelling
Deposited By: Jöckel, Dr. Patrick
Deposited On:23 Oct 2017 08:47
Last Modified:02 May 2019 13:59

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