The Influence of Stratospheric Sulphate Aerosol Deployment on the Surface Air Temperature and the Risk of an Abrupt Global Warming

The Influence of Stratospheric Sulphate Aerosol Deployment on the Surface Air Temperature and the Risk of an Abrupt Global Warming

23 pages, 7 figures

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Main Authors: Llanillo, P. J., Jones, P. D., Von Glasow, Roland
Format: artículo biblioteca
Language:English
Published: Multidisciplinary Digital Publishing Institute 2010-12
Subjects:Sulphur injections, Geoengineering interruption, A1B scenario, Heating rate, Sulphate aerosol, SAT,
Online Access:http://hdl.handle.net/10261/80860
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spelling dig-icm-es-10261-808602020-12-09T16:17:55Z The Influence of Stratospheric Sulphate Aerosol Deployment on the Surface Air Temperature and the Risk of an Abrupt Global Warming Llanillo, P. J. Jones, P. D. Von Glasow, Roland Sulphur injections Geoengineering interruption A1B scenario Heating rate Sulphate aerosol SAT 23 pages, 7 figures We used the `Radiative-Convective Model of the Earth-atmosphere system' (OGIM) to investigate the cooling effects induced by sulphur injections into the stratosphere. The ensemble of numerical calculations was based on the A1B scenario from the IPCC Special Report on Emissions Scenarios (SRES). Several geoengineered scenarios were analysed, including the abrupt interruption of these injections in different scenarios and at different dates. We focused on the surface air temperature (SAT) anomalies induced by stratospheric sulphate aerosol generated in order to compensate future warming. Results show that continuous deployment of sulphur into the stratosphere could induce a lasting decrease in SAT. Retaining a constant aerosol loading equivalent to 6 TgS would delay the expected global warming by 53 years. Keeping the SAT constant in a context of increasing greenhouse gases (GHGs) means that the aerosol loading needs to be increased by 1.9% annually. This would offset the effect of increasing GHG under the A1B scenario. A major focus of this study was on the heating rates of SAT that would arise in different scenarios in case of an abrupt cessation of sulphur injections into the stratosphere. Our model results show that heating rates after geoengineering interruption would be 15¿28 times higher than in a case without geoengineering, with likely important consequences for life on Earth. Larger initial sulphate loadings induced more intense warming rates when the geoengineering was stopped at the same time. This implies that, if sulphate loading was increased to maintain constant SAT in the light of increasing GHG concentrations, the later the geoengineering interruption was to occur, the higher the heating rates would be. Consequently, geoengineering techniques like this should only be regarded as last-resort measures and require intense further research should they ever become necessary Peer Reviewed 2013-08-22T09:07:51Z 2013-08-22T09:07:51Z 2010-12 2013-08-22T09:07:51Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.3390/atmos1010062 issn: 2073-4433 Atmosphere 1: 62-84 (2010) http://hdl.handle.net/10261/80860 10.3390/atmos1010062 en Publisher’s version https://doi.org/10.3390/atmos1010062 open Multidisciplinary Digital Publishing Institute
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic Sulphur injections
Geoengineering interruption
A1B scenario
Heating rate
Sulphate aerosol
SAT
Sulphur injections
Geoengineering interruption
A1B scenario
Heating rate
Sulphate aerosol
SAT
spellingShingle Sulphur injections
Geoengineering interruption
A1B scenario
Heating rate
Sulphate aerosol
SAT
Sulphur injections
Geoengineering interruption
A1B scenario
Heating rate
Sulphate aerosol
SAT
Llanillo, P. J.
Jones, P. D.
Von Glasow, Roland
The Influence of Stratospheric Sulphate Aerosol Deployment on the Surface Air Temperature and the Risk of an Abrupt Global Warming
description 23 pages, 7 figures
format artículo
topic_facet Sulphur injections
Geoengineering interruption
A1B scenario
Heating rate
Sulphate aerosol
SAT
author Llanillo, P. J.
Jones, P. D.
Von Glasow, Roland
author_facet Llanillo, P. J.
Jones, P. D.
Von Glasow, Roland
author_sort Llanillo, P. J.
title The Influence of Stratospheric Sulphate Aerosol Deployment on the Surface Air Temperature and the Risk of an Abrupt Global Warming
title_short The Influence of Stratospheric Sulphate Aerosol Deployment on the Surface Air Temperature and the Risk of an Abrupt Global Warming
title_full The Influence of Stratospheric Sulphate Aerosol Deployment on the Surface Air Temperature and the Risk of an Abrupt Global Warming
title_fullStr The Influence of Stratospheric Sulphate Aerosol Deployment on the Surface Air Temperature and the Risk of an Abrupt Global Warming
title_full_unstemmed The Influence of Stratospheric Sulphate Aerosol Deployment on the Surface Air Temperature and the Risk of an Abrupt Global Warming
title_sort influence of stratospheric sulphate aerosol deployment on the surface air temperature and the risk of an abrupt global warming
publisher Multidisciplinary Digital Publishing Institute
publishDate 2010-12
url http://hdl.handle.net/10261/80860
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