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Intercomparison of radiative forcing calculations of stratospheric water vapour and contrails

Myhre, Gunnar and Kvalevag, Maria and Rädel, Gaby and Cook, Jolene and Shine, Keith P. and Clarke, Hannah and Karcher, Fernand and Markowicz, Krzysztof and Kardas, Aleksandra and Wolkenberg, Paulina and Balkanski, Yves and Ponater, Michael and Forster, Piers and Rap, Alexandru and Rodriguez de Leon, Ruben (2009) Intercomparison of radiative forcing calculations of stratospheric water vapour and contrails. Meteorologische Zeitschrift, 18 (6), pp. 585-596. Borntraeger Science Publishers. DOI: 10.1127/0941-2948/2009/0411

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Official URL: http://www.schweizerbart.de/papers/metz/detail/18/74377

Abstract

Seven groups have participated in an intercomparison study of calculations of radiative forcing (RF) due to stratospheric water vapour (SWV) and contrails. A combination of detailed radiative transfer schemes and codes for global-scale calculations has been used, as well as a combination of idealized simulations and more realistic global-scale changes in stratospheric water vapour and contrails. Detailed line-by-line codes agree within about 15% for longwave (LW) and shortwave (SW) RF, except in one case where the difference is 30%. Since the LW and SW RF due to contrails and SWV changes are of opposite sign, the differences between the models seen in the individual LW and SW components can be either compensated or strengthened in the net RF, and thus in relative terms uncertainties are much larger for the net RF. Some of the models used for global-scale simulations of changes in SWV and contrails differ substantially in RF from the more detailed radiative transfer schemes. For the global-scale calculations we use a method of weighting the results to calculate a best estimate based on their performance compared to the more detailed radiative transfer schemes in the idealized simulations.

Item URL in elib:https://elib.dlr.de/61784/
Document Type:Article
Title:Intercomparison of radiative forcing calculations of stratospheric water vapour and contrails
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Myhre, GunnarUniv. Oslo, NUNSPECIFIED
Kvalevag, MariaUniv. Oslo, NUNSPECIFIED
Rädel, GabyUniv. Reading, UKUNSPECIFIED
Cook, JoleneUniv. Reading, UKUNSPECIFIED
Shine, Keith P.Univ. Reading, UKUNSPECIFIED
Clarke, HannahCNRM Meteo France, Toulouse, FUNSPECIFIED
Karcher, FernandCNRM Meteo France, Toulouse, FUNSPECIFIED
Markowicz, KrzysztofUniv. Warschau, PLUNSPECIFIED
Kardas, AleksandraUniv. Warschau, PLUNSPECIFIED
Wolkenberg, PaulinaUniv. Warschau, PLUNSPECIFIED
Balkanski, YvesLSCE/IPSL Cedex FranceUNSPECIFIED
Ponater, MichaelDLRUNSPECIFIED
Forster, PiersUniv. Leeds, UKUNSPECIFIED
Rap, AlexandruUniv. Leeds, UKUNSPECIFIED
Rodriguez de Leon, RubenManchester Metropolitan Univ., Manchester, UKUNSPECIFIED
Date:2009
Journal or Publication Title:Meteorologische Zeitschrift
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:18
DOI :10.1127/0941-2948/2009/0411
Page Range:pp. 585-596
Publisher:Borntraeger Science Publishers
Status:Published
Keywords:Radiative Forcing, Contrails, Stratospheric Water Vapour
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Umweltwirkungen des Verkehrs (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Dynamics
Deposited By: Ponater, Dr.rer.nat. Michael
Deposited On:15 Dec 2009 11:37
Last Modified:08 Mar 2018 18:46

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