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Present state of global wetland extent and wetland methane modelling: methodology of a model inter-comparison project (WETCHIMP)

hal.structure.identifierInstitut des Sciences de l'Evolution de Montpellier [UMR ISEM]
dc.contributor.authorWANIA, R.
hal.structure.identifierEcole Polytechnique Fédérale de Lausanne [EPFL]
dc.contributor.authorMELTON, J.
dc.contributor.authorHODSON, E.
hal.structure.identifierMontana State University [MSU]
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorPOULTER, B.
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorRINGEVAL, Bruno
hal.structure.identifierOeschger Centre for Climate Change Research [OCCR]
dc.contributor.authorSPAHNI, R.
dc.contributor.authorBOHN, T.
dc.contributor.authorAVIS, C.
dc.contributor.authorCHEN, G.
dc.contributor.authorELISEEV, A.
dc.contributor.authorHOPCROFT, P.
dc.contributor.authorRILEY, W
dc.contributor.authorSUBIN, Z.
dc.contributor.authorTIAN, H.
dc.contributor.authorVAN BODEGOM, P.
dc.contributor.authorKLEINEN, T.
dc.contributor.authorYU, Z
dc.contributor.authorSINGARAYER, J.
dc.contributor.authorZÜRCHER, S.
dc.contributor.authorLETTENMAIER, D.
dc.contributor.authorBEERLING, D
dc.contributor.authorDENISOV, S.
hal.structure.identifierLaboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA]
dc.contributor.authorPRIGENT, C.
hal.structure.identifierLaboratoire d'études en Géophysique et océanographie spatiales [LEGOS]
dc.contributor.authorPAPA, F.
hal.structure.identifierEcole Polytechnique Fédérale de Lausanne [EPFL]
dc.contributor.authorKAPLAN, J.
dc.date.accessioned2024-04-08T12:08:45Z
dc.date.available2024-04-08T12:08:45Z
dc.date.issued2013
dc.identifier.issn1991-9603
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196538
dc.description.abstractEnThe Wetland and Wetland CH 4 Intercomparison of Models Project (WETCHIMP) was created to evaluate our present ability to simulate large-scale wetland characteristics and corresponding methane (CH 4) emissions. A multi-model comparison is essential to evaluate the key uncertainties in the mechanisms and parameters leading to methane emissions. Ten modelling groups joined WETCHIMP to run eight global and two regional models with a common experimental protocol using the same climate and atmospheric carbon dioxide (CO 2) forcing datasets. We reported the main conclusions from the intercomparison effort in a companion paper (Melton et al., 2013). Here we provide technical details for the six experiments, which included an equilibrium, a transient , and an optimized run plus three sensitivity experiments (temperature, precipitation, and atmospheric CO 2 concentration). The diversity of approaches used by the models is summarized through a series of conceptual figures, and is used to evaluate the wide range of wetland extent and CH 4 fluxes predicted by the models in the equilibrium run. We discuss relationships among the various approaches and patterns in consistencies of these model predictions. Within this group of models, there are three broad classes of methods used to estimate wetland extent: prescribed based on wetland distribution maps, prognostic relationships between hydrological states based on satellite observations, and explicit hydrological mass balances. A larger variety of approaches was used to estimate the net CH 4 fluxes from wetland systems. Even though modelling of wetland extent and CH 4 emissions has progressed significantly over recent decades, large uncertainties still exist when estimating CH 4 emissions: there is little consensus on model structure or complexity due to knowledge gaps, different aims of the models, and the range of temporal and spatial resolutions of the models.
dc.language.isoen
dc.publisherEuropean Geosciences Union
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.title.enPresent state of global wetland extent and wetland methane modelling: methodology of a model inter-comparison project (WETCHIMP)
dc.typeArticle de revue
dc.identifier.doi10.5194/gmd-6-617-2013
dc.subject.halSciences de l'environnement/Milieux et Changements globaux
dc.subject.halPhysique [physics]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]
bordeaux.journalGeoscientific Model Development
bordeaux.page617-641
bordeaux.volume6
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue3
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-01806905
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01806905v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geoscientific%20Model%20Development&rft.date=2013&rft.volume=6&rft.issue=3&rft.spage=617-641&rft.epage=617-641&rft.eissn=1991-9603&rft.issn=1991-9603&rft.au=WANIA,%20R.&MELTON,%20J.&HODSON,%20E.&POULTER,%20B.&RINGEVAL,%20Bruno&rft.genre=article


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