An inconsistency in aviation emissions between CMIP5 and CMIP6 and the implications for short-lived species and their radiative forcing
Abstract We report on an inconsistency in the latitudinal distribution of aviation emissions between the data products of phases 5 and 6 of the Coupled Model Intercomparison Project (CMIP). Emissions in the CMIP6 data occur at higher latitudes than in the CMIP5 data for all scenarios, years, and emitted species. A comparative simulation with the chemistry–climate model ECHAM/MESSy Atmospheric Chemistry (EMAC) reveals that the difference in nitrogen oxide emission distribution leads to reduced overall ozone changes due to aviation in the CMIP6 scenarios because in those scenarios the distribution of emissions is partly shifted towards the chemically less active higher latitudes. The radiative forcing associated with aviation ozone is 7.6 % higher, and the decrease in methane lifetime is 5.7 % larger for the year 2015 when using the CMIP5 latitudinal distribution of emissions compared to when using the CMIP6 distribution. We do not find a statistically significant difference in the radiative forcing associated with aviation aerosol emissions. In total, future studies investigating the effects of aviation emissions on ozone and climate should consider the inconsistency reported here.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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An inconsistency in aviation emissions between CMIP5 and CMIP6 and the implications for short-lived species and their radiative forcing ; volume:16 ; number:5 ; year:2023 ; pages:1459-1466 ; extent:8
Geoscientific model development ; 16, Heft 5 (2023), 1459-1466 (gesamt 8)
- Creator
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Thor, Robin N.
Mertens, Mariano
Matthes, Sigrun
Righi, Mattia
Hendricks, Johannes
Brinkop, Sabine
Graf, Phoebe
Grewe, Volker
Jöckel, Patrick
Smith, Steven
- DOI
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10.5194/gmd-16-1459-2023
- URN
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urn:nbn:de:101:1-2023033006060626806485
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:45 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Thor, Robin N.
- Mertens, Mariano
- Matthes, Sigrun
- Righi, Mattia
- Hendricks, Johannes
- Brinkop, Sabine
- Graf, Phoebe
- Grewe, Volker
- Jöckel, Patrick
- Smith, Steven
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How well have CMIP3, CMIP5 and CMIP6 future climate projections portrayed the recently observed warming
Are Cut-off Lows simulated better in CMIP6 compared to CMIP5?
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Tracking Improvement in Simulated Marine Biogeochemistry Between CMIP5 and CMIP6
Uncertainty of ENSO-amplitude projections in CMIP5 and CMIP6 models
The Mediterranean climate change hotspot in the CMIP5 and CMIP6 projections
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Carbon-concentration and carbon-climate feedbacks in CMIP6 models, and their comparison to CMIP5 models
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Drivers of low-frequency Sahel precipitation variability: comparing CMIP5 and CMIP6 ensemble means with observations
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How well have CMIP3, CMIP5 and CMIP6 future climate projections portrayed the recently observed warming
Are Cut-off Lows simulated better in CMIP6 compared to CMIP5?