Process-based modelling of the methane balance in periglacial landscapes (JSBACH-methane)
A detailed process-based methane module for a global land surface scheme has been developed which is general enough to be applied in permafrost regions as well as wetlands outside permafrost areas. Methane production, oxidation and transport by ebullition, diffusion and plants are represented. In th...
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ftdoajarticles:oai:doaj.org/article:2fbdc2803c2f42078538a2353dafbf10 2023-05-15T16:37:32+02:00 Process-based modelling of the methane balance in periglacial landscapes (JSBACH-methane) S. Kaiser M. Göckede K. Castro-Morales C. Knoblauch A. Ekici T. Kleinen S. Zubrzycki T. Sachs C. Wille C. Beer 2017-01-01T00:00:00Z https://doi.org/10.5194/gmd-10-333-2017 https://doaj.org/article/2fbdc2803c2f42078538a2353dafbf10 EN eng Copernicus Publications http://www.geosci-model-dev.net/10/333/2017/gmd-10-333-2017.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 1991-959X 1991-9603 doi:10.5194/gmd-10-333-2017 https://doaj.org/article/2fbdc2803c2f42078538a2353dafbf10 Geoscientific Model Development, Vol 10, Iss 1, Pp 333-358 (2017) Geology QE1-996.5 article 2017 ftdoajarticles https://doi.org/10.5194/gmd-10-333-2017 2022-12-30T23:53:18Z A detailed process-based methane module for a global land surface scheme has been developed which is general enough to be applied in permafrost regions as well as wetlands outside permafrost areas. Methane production, oxidation and transport by ebullition, diffusion and plants are represented. In this model, oxygen has been explicitly incorporated into diffusion, transport by plants and two oxidation processes, of which one uses soil oxygen, while the other uses oxygen that is available via roots. Permafrost and wetland soils show special behaviour, such as variable soil pore space due to freezing and thawing or water table depths due to changing soil water content. This has been integrated directly into the methane-related processes. A detailed application at the Samoylov polygonal tundra site, Lena River Delta, Russia, is used for evaluation purposes. The application at Samoylov also shows differences in the importance of the several transport processes and in the methane dynamics under varying soil moisture, ice and temperature conditions during different seasons and on different microsites. These microsites are the elevated moist polygonal rim and the depressed wet polygonal centre. The evaluation shows sufficiently good agreement with field observations despite the fact that the module has not been specifically calibrated to these data. This methane module is designed such that the advanced land surface scheme is able to model recent and future methane fluxes from periglacial landscapes across scales. In addition, the methane contribution to carbon cycle–climate feedback mechanisms can be quantified when running coupled to an atmospheric model. Article in Journal/Newspaper Ice lena river permafrost Tundra Directory of Open Access Journals: DOAJ Articles Geoscientific Model Development 10 1 333 358 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Geology QE1-996.5 |
spellingShingle |
Geology QE1-996.5 S. Kaiser M. Göckede K. Castro-Morales C. Knoblauch A. Ekici T. Kleinen S. Zubrzycki T. Sachs C. Wille C. Beer Process-based modelling of the methane balance in periglacial landscapes (JSBACH-methane) |
topic_facet |
Geology QE1-996.5 |
description |
A detailed process-based methane module for a global land surface scheme has been developed which is general enough to be applied in permafrost regions as well as wetlands outside permafrost areas. Methane production, oxidation and transport by ebullition, diffusion and plants are represented. In this model, oxygen has been explicitly incorporated into diffusion, transport by plants and two oxidation processes, of which one uses soil oxygen, while the other uses oxygen that is available via roots. Permafrost and wetland soils show special behaviour, such as variable soil pore space due to freezing and thawing or water table depths due to changing soil water content. This has been integrated directly into the methane-related processes. A detailed application at the Samoylov polygonal tundra site, Lena River Delta, Russia, is used for evaluation purposes. The application at Samoylov also shows differences in the importance of the several transport processes and in the methane dynamics under varying soil moisture, ice and temperature conditions during different seasons and on different microsites. These microsites are the elevated moist polygonal rim and the depressed wet polygonal centre. The evaluation shows sufficiently good agreement with field observations despite the fact that the module has not been specifically calibrated to these data. This methane module is designed such that the advanced land surface scheme is able to model recent and future methane fluxes from periglacial landscapes across scales. In addition, the methane contribution to carbon cycle–climate feedback mechanisms can be quantified when running coupled to an atmospheric model. |
format |
Article in Journal/Newspaper |
author |
S. Kaiser M. Göckede K. Castro-Morales C. Knoblauch A. Ekici T. Kleinen S. Zubrzycki T. Sachs C. Wille C. Beer |
author_facet |
S. Kaiser M. Göckede K. Castro-Morales C. Knoblauch A. Ekici T. Kleinen S. Zubrzycki T. Sachs C. Wille C. Beer |
author_sort |
S. Kaiser |
title |
Process-based modelling of the methane balance in periglacial landscapes (JSBACH-methane) |
title_short |
Process-based modelling of the methane balance in periglacial landscapes (JSBACH-methane) |
title_full |
Process-based modelling of the methane balance in periglacial landscapes (JSBACH-methane) |
title_fullStr |
Process-based modelling of the methane balance in periglacial landscapes (JSBACH-methane) |
title_full_unstemmed |
Process-based modelling of the methane balance in periglacial landscapes (JSBACH-methane) |
title_sort |
process-based modelling of the methane balance in periglacial landscapes (jsbach-methane) |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/gmd-10-333-2017 https://doaj.org/article/2fbdc2803c2f42078538a2353dafbf10 |
genre |
Ice lena river permafrost Tundra |
genre_facet |
Ice lena river permafrost Tundra |
op_source |
Geoscientific Model Development, Vol 10, Iss 1, Pp 333-358 (2017) |
op_relation |
http://www.geosci-model-dev.net/10/333/2017/gmd-10-333-2017.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 1991-959X 1991-9603 doi:10.5194/gmd-10-333-2017 https://doaj.org/article/2fbdc2803c2f42078538a2353dafbf10 |
op_doi |
https://doi.org/10.5194/gmd-10-333-2017 |
container_title |
Geoscientific Model Development |
container_volume |
10 |
container_issue |
1 |
container_start_page |
333 |
op_container_end_page |
358 |
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