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Methane and its isotopologues simulated with a chemistry-climate model to evaluate the atmospheric burden and the uncertainty of emissions

Frank, Franziska and Jöckel, Patrick and Arfeuille, Florian and Brunner, Dominik (2015) Methane and its isotopologues simulated with a chemistry-climate model to evaluate the atmospheric burden and the uncertainty of emissions. InGOS International Conference: Non-CO2 Greenhouse Gases, 21-24 Sep 2015, Utrecht, Niederlande. (Unpublished)

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Abstract

Current estimates of atmospheric methane and its missions still inherit large uncertainties. Chemistry-climate models can help to reduce these uncertainties and improve insight into atmospheric processes. The ECHAM/MESSy Atmospheric Chemistry (EMAC) model is a modular and high flexible 3D chemistry-climate model. Using the EMAC model we simulate atmospheric methane by applying the submodel CH4, which calculates the methane chemistry including the isotopologues 12CH4 and 13CH4, and CH4 and CH3D respectively, with adjusted reaction rates regarding the kinetic fractionation effect (KIE). We use different emission set-ups and isotopic ratios of methane sources, to assess the model sensitivity and prepare simulation data for inverse modelling of emission rates. We show first results comparing the burden of simulated atmospheric methane using various data sets as, for example from the NOAA/ESRL, the CONTRAIL project and balloon borne measurements, with the latter one also providing delta D(CH4) and delta 13C(CH4).

Item URL in elib:https://elib.dlr.de/98480/
Document Type:Conference or Workshop Item (Speech)
Title:Methane and its isotopologues simulated with a chemistry-climate model to evaluate the atmospheric burden and the uncertainty of emissions
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Frank, FranziskaDLR, IPAUNSPECIFIED
Jöckel, PatrickDLR, IPAUNSPECIFIED
Arfeuille, FlorianEidgenössische Materialprüfungs- und Forschungsanstalt, Dübendorf, CHUNSPECIFIED
Brunner, DominikEidgenössische Materialprüfungs- und Forschungsanstalt, Dübendorf, CHUNSPECIFIED
Date:23 September 2015
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Unpublished
Keywords:Methan, Isotope, Isotopologe, Modellierung
Event Title:InGOS International Conference: Non-CO2 Greenhouse Gases
Event Location:Utrecht, Niederlande
Event Type:international Conference
Event Dates:21-24 Sep 2015
Organizer:InGOS project
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Atmosphären- und Klimaforschung
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Earth System Modelling
Deposited By: Frank, Franziska
Deposited On:15 Jan 2016 17:42
Last Modified:15 Jan 2016 17:42

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