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Can feedback analysis be used to understand efficacy differences between radiative forcings?

Ponater, Michael and Rieger, Vanessa and Dietmüller, Simone (2014) Can feedback analysis be used to understand efficacy differences between radiative forcings? 14th EMS / 10th ECAC annual meeting, 6.-10. Okt. 2014, Prag, Czech Republic.

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Official URL: http://www.ems2014.eu/outstanding_poster_award.html

Abstract

There is ample evidence that various radiative forcing mechanisms differ with respect to their effectiveness in inducing a surface temperature change. These so-called efficacy differences impede the assessment of the relative importance of several contributing agents to a total climate impact. Running equilibrium climate change simulations for various forcing agents allows to quantify the efficacy differences, but the use of such information in assessment studies remains problematic as long as the underlying processes are insufficiently understood. From the global perspective, radiative feedback mechanisms with the climate system are the processes expected to control the efficacy of radiative forcing mechanisms. In this talk we will point out some merits and shortcomings of the "partial radiative perturbation method" in determining global radiative feedbacks. The method has been applied to analyse the equilibrium climate change induced by radiative forcings from either CO2 increase or from enhanced ozone precursor emissions. The simulations have been run using the coupled chemistry-climate model EMAC. Statistical assessment problems, inherent non-linearities and inter-dependency of feedback mechanisms are all addressed.

Item URL in elib:https://elib.dlr.de/91277/
Document Type:Conference or Workshop Item (Poster)
Additional Information:Received "Best poster award" at the EMS/ECAC annual meeting 2014
Title:Can feedback analysis be used to understand efficacy differences between radiative forcings?
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ponater, MichaelDLR, IPAUNSPECIFIED
Rieger, VanessaDLR, IPAUNSPECIFIED
Dietmüller, SimoneDLR, IPAUNSPECIFIED
Date:2014
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:radiative feedback; radiative forcing; efficacy
Event Title:14th EMS / 10th ECAC annual meeting
Event Location:Prag, Czech Republic
Event Type:international Conference
Event Dates:6.-10. Okt. 2014
Organizer:European Meteorological Society
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 - Verkehrsentwicklung und Umwelt II (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Earth System Modelling
Deposited By: Ponater, Dr.rer.nat. Michael
Deposited On:28 Oct 2014 09:07
Last Modified:31 Jul 2019 19:48

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