Sensitivity analysis of a wetland methane emission model based on temperate and arctic wetland sites
Modelling of wetland CH4 fluxes using wetland soil emission models is used to determine the size of this natural source of CH4 emission on local to global scale. Most process models of CH4 formation and soil-atmosphere CH4 transport processes operate on a plot scale. For large scale emission modelli...
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Copernicus Publications
2009
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00029453 2023-05-15T14:59:49+02:00 Sensitivity analysis of a wetland methane emission model based on temperate and arctic wetland sites van Huissteden, J. Petrescu, A. M. R. Hendriks, D. M. D. Rebel, K. T. 2009-12 electronic https://doi.org/10.5194/bg-6-3035-2009 https://noa.gwlb.de/receive/cop_mods_00029453 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029408/bg-6-3035-2009.pdf https://bg.copernicus.org/articles/6/3035/2009/bg-6-3035-2009.pdf eng eng Copernicus Publications Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-6-3035-2009 https://noa.gwlb.de/receive/cop_mods_00029453 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029408/bg-6-3035-2009.pdf https://bg.copernicus.org/articles/6/3035/2009/bg-6-3035-2009.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2009 ftnonlinearchiv https://doi.org/10.5194/bg-6-3035-2009 2022-02-08T22:47:43Z Modelling of wetland CH4 fluxes using wetland soil emission models is used to determine the size of this natural source of CH4 emission on local to global scale. Most process models of CH4 formation and soil-atmosphere CH4 transport processes operate on a plot scale. For large scale emission modelling (regional to global scale) upscaling of this type of model requires thorough analysis of the sensitivity of these models to parameter uncertainty. We applied the GLUE (Generalized Likelihood Uncertainty Analysis) methodology to a well-known CH4 emission model, the Walter-Heimann model, as implemented in the PEATLAND-VU model. The model is tested using data from two temperate wetland sites and one arctic site. The tests include experiments with different objective functions, which quantify the fit of the model results to the data. The results indicate that the model 1) in most cases is capable of estimating CH4 fluxes better than an estimate based on the data avarage, but does not clearly outcompete a regression model based on local data; 2) is capable of reproducing larger scale (seasonal) temporal variability in the data, but not the small-scale (daily) temporal variability; 3) is not strongly sensitive to soil parameters, 4) is sensitive to parameters determining CH4 transport and oxidation in vegetation, and the temperature sensitivity of the microbial population. The GLUE method also allowed testing of several smaller modifications of the original model. We conclude that upscaling of this plot-based wetland CH4 emission model is feasible, but considerable improvements of wetland CH4 modelling will result from improvement of wetland vegetation data. Article in Journal/Newspaper Arctic Niedersächsisches Online-Archiv NOA Arctic Biogeosciences 6 12 3035 3051 |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung van Huissteden, J. Petrescu, A. M. R. Hendriks, D. M. D. Rebel, K. T. Sensitivity analysis of a wetland methane emission model based on temperate and arctic wetland sites |
topic_facet |
article Verlagsveröffentlichung |
description |
Modelling of wetland CH4 fluxes using wetland soil emission models is used to determine the size of this natural source of CH4 emission on local to global scale. Most process models of CH4 formation and soil-atmosphere CH4 transport processes operate on a plot scale. For large scale emission modelling (regional to global scale) upscaling of this type of model requires thorough analysis of the sensitivity of these models to parameter uncertainty. We applied the GLUE (Generalized Likelihood Uncertainty Analysis) methodology to a well-known CH4 emission model, the Walter-Heimann model, as implemented in the PEATLAND-VU model. The model is tested using data from two temperate wetland sites and one arctic site. The tests include experiments with different objective functions, which quantify the fit of the model results to the data. The results indicate that the model 1) in most cases is capable of estimating CH4 fluxes better than an estimate based on the data avarage, but does not clearly outcompete a regression model based on local data; 2) is capable of reproducing larger scale (seasonal) temporal variability in the data, but not the small-scale (daily) temporal variability; 3) is not strongly sensitive to soil parameters, 4) is sensitive to parameters determining CH4 transport and oxidation in vegetation, and the temperature sensitivity of the microbial population. The GLUE method also allowed testing of several smaller modifications of the original model. We conclude that upscaling of this plot-based wetland CH4 emission model is feasible, but considerable improvements of wetland CH4 modelling will result from improvement of wetland vegetation data. |
format |
Article in Journal/Newspaper |
author |
van Huissteden, J. Petrescu, A. M. R. Hendriks, D. M. D. Rebel, K. T. |
author_facet |
van Huissteden, J. Petrescu, A. M. R. Hendriks, D. M. D. Rebel, K. T. |
author_sort |
van Huissteden, J. |
title |
Sensitivity analysis of a wetland methane emission model based on temperate and arctic wetland sites |
title_short |
Sensitivity analysis of a wetland methane emission model based on temperate and arctic wetland sites |
title_full |
Sensitivity analysis of a wetland methane emission model based on temperate and arctic wetland sites |
title_fullStr |
Sensitivity analysis of a wetland methane emission model based on temperate and arctic wetland sites |
title_full_unstemmed |
Sensitivity analysis of a wetland methane emission model based on temperate and arctic wetland sites |
title_sort |
sensitivity analysis of a wetland methane emission model based on temperate and arctic wetland sites |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doi.org/10.5194/bg-6-3035-2009 https://noa.gwlb.de/receive/cop_mods_00029453 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029408/bg-6-3035-2009.pdf https://bg.copernicus.org/articles/6/3035/2009/bg-6-3035-2009.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-6-3035-2009 https://noa.gwlb.de/receive/cop_mods_00029453 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029408/bg-6-3035-2009.pdf https://bg.copernicus.org/articles/6/3035/2009/bg-6-3035-2009.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-6-3035-2009 |
container_title |
Biogeosciences |
container_volume |
6 |
container_issue |
12 |
container_start_page |
3035 |
op_container_end_page |
3051 |
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1766331936747290624 |