High-resolution inverse modelling of European CH₄ emissions using the novel FLEXPART-COSMO TM5 4DVAR inverse modelling system

Abstract 7 km × 7 km 4 emissions in 2018 using 24 stations with in situ measurements, complemented with data from five stations with discrete air sampling (and additional stations outside the European COSMO-7 domain used for the global TM5-4DVAR inversions). The sensitivity of the FLEXVAR inversions to different approaches to calculate the baselines, different parameterizations of the model representation error, different settings of the prior error covariance parameters, different prior inventories, and different observation data sets are investigated in detail. Furthermore, the FLEXVAR inversions are compared to inversions with the FLEXPART extended Kalman filter (“FLExKF”) system and with TM5-4DVAR inversions at 1 ∘ × 1 ∘ 7 km × 7 km 1 ∘ × 1 ∘ 4 emissions in 2018 for Germany, France, and BENELUX compared to the sum of anthropogenic emissions reported to UNFCCC and natural emissions estimated from the Global Carbon Project CH4 inventory, but the uncertainty ranges of top-down and bottom-up total emission estimates overlap for all three country regions. In contrast, the top-down estimates for the sum of emissions from the UK and Ireland agree relatively well with the total of anthropogenic and natural bottom-up inventories.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: High-resolution inverse modelling of European CH₄ emissions using the novel FLEXPART-COSMO TM5 4DVAR inverse modelling system ; volume:22 ; number:20 ; year:2022 ; pages:13243-13268 ; extent:26 ; Atmospheric chemistry and physics ; 22, Heft 20 (2022), 13243-13268 (gesamt 26)

Contributors, Places and Time

• Creator: Bergamaschi, Peter ; Segers, Arjo ; Brunner, Dominik ; Haussaire, Jean-Matthieu ; Henne, Stephan ; Ramonet, Michel ; Arnold, Tim ; Biermann, Tobias ; Chen, Huilin ; Conil, Sebastien ; Delmotte, Marc ; Forster, Grant ; Frumau, Arnoud ; Kubistin, Dagmar ; Lan, Xin ; Leuenberger, Markus Christian ; Lindauer, Matthias ; Lopez, Morgan ; Manca, Giovanni ; Müller-Williams, Jennifer ; O'Doherty, Simon ; Scheeren, Bert ; Steinbacher, Martin ; Trisolino, Pamela ; Vítková, Gabriela ; Yver Kwok, Camille

Further information

• DOI: 10.5194/acp-22-13243-2022
• URN: urn:nbn:de:101:1-2022102005190497414894
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:32 AM CEST