elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Analysis of radiative feedbacks in model simulations including interactive chemisty

Ponater, Michael and Dietmüller, Simone and Rieger, Vanessa Simone and Stecher, Laura and Koopmans, Sabrina (2019) Analysis of radiative feedbacks in model simulations including interactive chemisty. 27. IUGG General Assembly, 8-18 Jul 2019, Montreal, Canada.

[img] PDF
1MB

Abstract

Including interactive atmospheric chemistry in climate change simulations may have a significant impact on the climate sensitivity. In CO2-driven simulations the climate sensitivity has been found to be reduced. The reason is a negative feedback from stratospheric ozone (absent from models without chemistry), which is amplified by reducing the positive feedback of stratospheric water vapor. A complete feedback analysis reveals that other physical feedbacks, in particular the cloud radiative feedback, are also modified by the presence of chemical interactions. This feature may be more pronounced in climate change simulations driven by non-CO2 radiative forcings. In such cases the change of conventional (physical) radiative feedbacks could even overcompensate the direct feedback effect from changes of interactive chemical tracers. It will also be emphasized that further methodological developments to radiative feedback analysis are called for, in order to interpret the feedbacks arising in chemistry-climate models in a proper cause and effect sense.

Item URL in elib:https://elib.dlr.de/128551/
Document Type:Conference or Workshop Item (Poster)
Title:Analysis of radiative feedbacks in model simulations including interactive chemisty
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ponater, MichaelDLR, IPAhttps://orcid.org/0000-0002-9771-4733
Dietmüller, SimoneDLR, IPAUNSPECIFIED
Rieger, Vanessa SimoneDLR, IPAhttps://orcid.org/0000-0002-7328-5102
Stecher, LauraDLR, IPAUNSPECIFIED
Koopmans, SabrinaDLR, IPAUNSPECIFIED
Date:2019
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:climate sensitivity, chemical feedback, ozone, stratospheric water vapour
Event Title:27. IUGG General Assembly
Event Location:Montreal, Canada
Event Type:international Conference
Event Dates:8-18 Jul 2019
Organizer:International Union of Geodesy and Geophysics
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 - Transport und Klima
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Earth System Modelling
Deposited By: Ponater, Dr.rer.nat. Michael
Deposited On:23 Jul 2019 11:02
Last Modified:31 Jul 2019 20:26

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.