Articles | Volume 25, issue 21
https://doi.org/10.5194/acp-25-14251-2025
https://doi.org/10.5194/acp-25-14251-2025
Research article
 | 
30 Oct 2025
Research article |  | 30 Oct 2025

CH4 emissions from Northern Europe wetlands: compared data assimilation approaches

Guillaume Monteil, Jalisha Theanutti Kallingal, and Marko Scholze

Data sets

Data corresponding to the CH4 inverse modeling simulations described in https://doi.org/10.5194/egusphere-2024-3122 Guillaume Monteil et al. https://doi.org/10.5281/zenodo.17047032

Atmospheric CH4 at Monte Cimone by University of Urbino J. Arduini https://gaw.kishou.go.jp/search/file/0074-6042-1002-01-01-9999

ICOS ATC CH_4 Release from Ispra (100.0 m) P. Bergamaschi and G. Manca https://hdl.handle.net/11676/8yimXenpgumK1-E-AZudMxr1

Atmospheric CH_4$ Product H. Chen and B. Scheeren https://hdl.handle.net/11676/dvsu8Y6AX9-YmpPwzp-hXVKC

Atmospheric CH_4 Product L. Chmura et al. https://hdl.handle.net/11676/Qowtphdwpy95uFVvqPk-VES

Atmospheric CH_4 product, puy de dôme (10.0 m) A. Colomb et al. https://hdl.handle.net/11676/_UMq711VgOR4-5RawhPQC1nU

Atmospheric CH_4 Product, Zugspitze (3.0 m) C. Couret and M. Schmidt https://hdl.handle.net/11676/eFh1N9EGf7oYXbfrwt1IURYw

Atmospheric CH_4 Product, Pic Du Midi (28.0 m) M. Delmotte et al. https://hdl.handle.net/11676/OK1l3K5n2itBpxIqzgakrZKp

Atmospheric CH_4 Product, Finokalia (15.0 m), 2014-06-05--2024-03-31 M. Delmotte et al. https://hdl.handle.net/11676/C06b8z3xyRgR4BvFHr4LcxAI

Atmospheric CH_4 Product, Weybourne (10.0 m) G. Forster and A. Manning https://hdl.handle.net/11676/z7mpwPjyMPWI5aRv7eW52kMS

Atmospheric CH_4 Product, Heidelberg (30.0 m) S. Hammer and I. Levin https://hdl.handle.net/11676/IIBrV9jz9D4hlHWVSbg1mMG

Atmospheric CH$_4$ at Hegyhátsál háttérszennyettség-mérő állomás by Institute for Nuclear Research L. Haszpra https://gaw.kishou.go.jp/search/file/0157-6034-1002-02-01-6083

Atmospheric CH_4 Product, Ut{\"o} -- Baltic Sea (57.0 m) J. Hatakka and T. Laurila https://hdl.handle.net/11676/DIsAmw1ZIAmRJHNB_8dFN_jq

Atmospheric CH_4 Product, Hyltemossa (150.0 m) M. Heliasz and T. Biermann https://hdl.handle.net/11676/dwFbNZQ1Y5_B6cZSkUopJbtm

Ecosystem Final Quality (L2) Product in ETC-Archive Format -- Release 2024-1 ICOS RI et al. https://doi.org/10.18160/G5KZ-ZD83

Atmospheric CH_4 Product, Torfhaus (147.0\,m) D. Kubistin et al. https://hdl.handle.net/11676/3oT_XC6YHxBDG3NmNZ-SMisB

Atmospheric CH_4 Product, Hohenpeissenberg (131.0 m) D. Kubistin et al. https://hdl.handle.net/11676/WTBfJCTsxRUtjo2jsvO2277I

Atmospheric CH_4 Product, Lindenberg (98.0 m) D. Kubistin et al. https://hdl.handle.net/11676/fH0UqKnX7rf_kigEjawJ9Adk

Atmospheric Methane Dry Air Mole Fractions from the NOAA GML Carbon Cycle Cooperative Global Air Sampling Network, 1983--2023 X. Lan et al. https://doi.org/10.15138/VNCZ-M766

Atmospheric CH_4 Product, Norunda (100.0 m) I. Lehner and M. M{\"o}lder https://hdl.handle.net/11676/dyPHK7qEEbQFnqSJx8ZntxOI

Atmospheric CH_4 Product, Hyyti{\"a}l{\"a} (125.0 m) J. Levula and I. Mammarella https://hdl.handle.net/11676/oMPibudu556XoynXRXnqLilC

Atmospheric CH_4 Product, Biscarrosse (47.0 m), 2009-09-01--2024-03-31 M. Lopez and M. Ramonet https://hdl.handle.net/11676/Hdn5JfclbuA3xIdcF2oW_Jf0

Main Greenhouse Gases and Carbon\_monoxide at Birkenes II C. Lunder and S. Platt https://doi.org/10.48597/77S6-364A

Atmospheric CH_4 Product, K{\v r}e{\v s}{\'i}n u Pacova (250.0\,m) M. V. Marek et al. https://hdl.handle.net/11676/ft2De4_2elQIT8nyj0_6TYsW

Atmospheric CH_4 at Schauinsland by German Environment Agency F. Meinhardt https://gaw.kishou.go.jp/search/file/0071-6027-1002-01-01-9999

Atmospheric CH_4 Product, Tacolneston (185.0 m) S. O'Doherty and J. Pitt https://hdl.handle.net/11676/sGoYLTdK6BmrBm1mBKgA0uoD

Atmospheric CH_4 Product, Ridge Hill (90.0 m) S. O'Doherty et al. https://hdl.handle.net/11676/XENJWmI0eRV4pNf2xrLFt5SR

Atmospheric CH_4 Product, Observatoire P{\'e}renne de l'environnement (120.0 m) M. Ramonet et al. https://hdl.handle.net/11676/25_LcWRQe-7rZpujELUKBeub

Atmospheric CH_4 Product, Saclay (100.0m) M. Ramonet et al. https://hdl.handle.net/11676/dWDZTRzDW70ontXITF2oDeUu

Atmospheric CH_4 Product, Trainou (180.0\,m) M. Ramonet et al. https://hdl.handle.net/11676/5KUsuilZhUjFtzVEiusE60x

Global Fire Emissions Database, Version 4.1 (GFEDv4) J. Randerson et al. https://doi.org/10.3334/ORNLDAAC/1293

Atmospheric CH$_4$ at Jungfraujoch by Swiss Federal Laboratories for Materials Science and Technology, dataset published as CH4\_JFJ6036\_surface-insitu\_Empa\_data1 at WDCGG M. Steinbacher https://doi.org/10.50849/WDCGG_0023-6036-1002-01-01-9999

Model code and software

Source code of the LUMIA inverse modelling setup Guillaume Monteil https://doi.org/10.5281/zenodo.17467258

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Short summary
Our study combines two data assimilation techniques to refine CH4 emission estimates from natural wetlands in Norther Europe, combining parameter estimation of a vegetation model using eddy-covariance CH4 flux measurements, and inverse modelling using atmospheric CH4 measurements. We find a good complementarity between the two approaches, with the combined product leading to the overall best fit to observations, and arguably most realistic wetland CH4 emission estimate.
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