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Feedback analysis of equilibrium climate change simulations

Ponater, Michael and Rieger, Vanessa (2014) Feedback analysis of equilibrium climate change simulations. Kolloquiumsvortrag, 13.3.2014, Leipzig.

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Performing equilibrium climate change simulations is a standard method to study the forcing-response relationship within the climate system. An important finding is that different climate models simulate a considerably different global mean response to the same kind of forcing, and previous studies have focussed to explore the respective reason. Radiative feedbacks are essential in controlling the distinctive global response and the cloud feedback has been identified to be of particular importance. Another key issue is to explain the distinctive global mean response of one and the same model to the same amount of forcing induced by different forcings mechanisms. This so-called efficacy characterising a certain forcing can also be related to the specific acting of feedbacks, and not necessarily of the cloud feedback only. Several ways to explore different efficacy of different forcings have been developed, and it is not clear which method is best suited for the purpose. In this talk we will point out some merits and shortcomings of the "partial radiative perturbation method". It has been applied to equilibrium climate change simulations with a coupled chemistry-climate model. The particular focus will be on CO2 increase simulations.

Item URL in elib:https://elib.dlr.de/88527/
Document Type:Conference or Workshop Item (Speech)
Title:Feedback analysis of equilibrium climate change simulations
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Radiative feedback, Climate Sensitivity, Efficacy
Event Title:Kolloquiumsvortrag
Event Location:Leipzig
Event Type:Other
Event Dates:13.3.2014
Organizer:Meteorologisches Institut der Universität Leipzig
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 - Projekt Verkehrsentwicklung und Umwelt (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics
Institute of Atmospheric Physics > Atmospheric Dynamics
Deposited By: Ponater, Dr.rer.nat. Michael
Deposited On:17 Mar 2014 13:59
Last Modified:17 Mar 2014 13:59

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