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. DOI: 10.1127/0941-2948/2009/0411.
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Official URL: http://www.schweizerbart.de/papers/metz/detail/18/74377
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.
|Title:||Intercomparison of radiative forcing calculations of stratospheric water vapour and contrails|
|Journal or Publication Title:||Meteorologische Zeitschrift|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 585-596|
|Keywords:||Radiative Forcing, Contrails, Stratospheric Water Vapour|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Transport|
|HGF - Program Themes:||V VS - Verkehrssystem|
|DLR - Research area:||Transport|
|DLR - Program:||V VS - Verkehrssystem|
|DLR - Research theme (Project):||V - Umweltwirkungen des Verkehrs (old)|
|Institutes and Institutions:||Institute of Atmospheric Physics > Atmospheric Dynamics|
|Deposited By:||Dr.rer.nat. Michael Ponater|
|Deposited On:||15 Dec 2009 11:37|
|Last Modified:||07 Feb 2013 20:37|
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