The Earth system model CLIMBER-X v1.0 – Part 2: The global carbon cycle
The carbon cycle component of the newly developed Earth system model of intermediate complexity CLIMBER-X is presented. The model represents the cycling of carbon through the atmosphere, vegetation, soils, seawater and marine sediments. Exchanges of carbon with geological reservoirs occur through se...
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ftdoajarticles:oai:doaj.org/article:dea4568da2bd4afe80a8bec81ef6f144 2023-07-23T04:21:23+02:00 The Earth system model CLIMBER-X v1.0 – Part 2: The global carbon cycle M. Willeit T. Ilyina B. Liu C. Heinze M. Perrette M. Heinemann D. Dalmonech V. Brovkin G. Munhoven J. Börker J. Hartmann G. Romero-Mujalli A. Ganopolski 2023-06-01T00:00:00Z https://doi.org/10.5194/gmd-16-3501-2023 https://doaj.org/article/dea4568da2bd4afe80a8bec81ef6f144 EN eng Copernicus Publications https://gmd.copernicus.org/articles/16/3501/2023/gmd-16-3501-2023.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-16-3501-2023 1991-959X 1991-9603 https://doaj.org/article/dea4568da2bd4afe80a8bec81ef6f144 Geoscientific Model Development, Vol 16, Pp 3501-3534 (2023) Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.5194/gmd-16-3501-2023 2023-07-02T00:39:25Z The carbon cycle component of the newly developed Earth system model of intermediate complexity CLIMBER-X is presented. The model represents the cycling of carbon through the atmosphere, vegetation, soils, seawater and marine sediments. Exchanges of carbon with geological reservoirs occur through sediment burial, rock weathering and volcanic degassing. The state-of-the-art HAMOCC6 model is employed to simulate ocean biogeochemistry and marine sediment processes. The land model PALADYN simulates the processes related to vegetation and soil carbon dynamics, including permafrost and peatlands. The dust cycle in the model allows for an interactive determination of the input of the micro-nutrient iron into the ocean. A rock weathering scheme is implemented in the model, with the weathering rate depending on lithology, runoff and soil temperature. CLIMBER-X includes a simple representation of the methane cycle, with explicitly modelled natural emissions from land and the assumption of a constant residence time of CH 4 in the atmosphere. Carbon isotopes 13 C and 14 C are tracked through all model compartments and provide a useful diagnostic for model–data comparison. A comprehensive evaluation of the model performance for the present day and the historical period shows that CLIMBER-X is capable of realistically reproducing the historical evolution of atmospheric CO 2 and CH 4 but also the spatial distribution of carbon on land and the 3D structure of biogeochemical ocean tracers. The analysis of model performance is complemented by an assessment of carbon cycle feedbacks and model sensitivities compared to state-of-the-art Coupled Model Intercomparison Project Phase 6 (CMIP6) models. Enabling an interactive carbon cycle in CLIMBER-X results in a relatively minor slow-down of model computational performance by ∼ 20 % compared to a throughput of ∼ 10 000 simulation years per day on a single node with 16 CPUs on a high-performance computer in a climate-only model set-up. CLIMBER-X is therefore well suited to investigating ... Article in Journal/Newspaper permafrost Directory of Open Access Journals: DOAJ Articles Geoscientific Model Development 16 12 3501 3534 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 |
spellingShingle |
Geology QE1-996.5 M. Willeit T. Ilyina B. Liu C. Heinze M. Perrette M. Heinemann D. Dalmonech V. Brovkin G. Munhoven J. Börker J. Hartmann G. Romero-Mujalli A. Ganopolski The Earth system model CLIMBER-X v1.0 – Part 2: The global carbon cycle |
topic_facet |
Geology QE1-996.5 |
description |
The carbon cycle component of the newly developed Earth system model of intermediate complexity CLIMBER-X is presented. The model represents the cycling of carbon through the atmosphere, vegetation, soils, seawater and marine sediments. Exchanges of carbon with geological reservoirs occur through sediment burial, rock weathering and volcanic degassing. The state-of-the-art HAMOCC6 model is employed to simulate ocean biogeochemistry and marine sediment processes. The land model PALADYN simulates the processes related to vegetation and soil carbon dynamics, including permafrost and peatlands. The dust cycle in the model allows for an interactive determination of the input of the micro-nutrient iron into the ocean. A rock weathering scheme is implemented in the model, with the weathering rate depending on lithology, runoff and soil temperature. CLIMBER-X includes a simple representation of the methane cycle, with explicitly modelled natural emissions from land and the assumption of a constant residence time of CH 4 in the atmosphere. Carbon isotopes 13 C and 14 C are tracked through all model compartments and provide a useful diagnostic for model–data comparison. A comprehensive evaluation of the model performance for the present day and the historical period shows that CLIMBER-X is capable of realistically reproducing the historical evolution of atmospheric CO 2 and CH 4 but also the spatial distribution of carbon on land and the 3D structure of biogeochemical ocean tracers. The analysis of model performance is complemented by an assessment of carbon cycle feedbacks and model sensitivities compared to state-of-the-art Coupled Model Intercomparison Project Phase 6 (CMIP6) models. Enabling an interactive carbon cycle in CLIMBER-X results in a relatively minor slow-down of model computational performance by ∼ 20 % compared to a throughput of ∼ 10 000 simulation years per day on a single node with 16 CPUs on a high-performance computer in a climate-only model set-up. CLIMBER-X is therefore well suited to investigating ... |
format |
Article in Journal/Newspaper |
author |
M. Willeit T. Ilyina B. Liu C. Heinze M. Perrette M. Heinemann D. Dalmonech V. Brovkin G. Munhoven J. Börker J. Hartmann G. Romero-Mujalli A. Ganopolski |
author_facet |
M. Willeit T. Ilyina B. Liu C. Heinze M. Perrette M. Heinemann D. Dalmonech V. Brovkin G. Munhoven J. Börker J. Hartmann G. Romero-Mujalli A. Ganopolski |
author_sort |
M. Willeit |
title |
The Earth system model CLIMBER-X v1.0 – Part 2: The global carbon cycle |
title_short |
The Earth system model CLIMBER-X v1.0 – Part 2: The global carbon cycle |
title_full |
The Earth system model CLIMBER-X v1.0 – Part 2: The global carbon cycle |
title_fullStr |
The Earth system model CLIMBER-X v1.0 – Part 2: The global carbon cycle |
title_full_unstemmed |
The Earth system model CLIMBER-X v1.0 – Part 2: The global carbon cycle |
title_sort |
earth system model climber-x v1.0 – part 2: the global carbon cycle |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/gmd-16-3501-2023 https://doaj.org/article/dea4568da2bd4afe80a8bec81ef6f144 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Geoscientific Model Development, Vol 16, Pp 3501-3534 (2023) |
op_relation |
https://gmd.copernicus.org/articles/16/3501/2023/gmd-16-3501-2023.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-16-3501-2023 1991-959X 1991-9603 https://doaj.org/article/dea4568da2bd4afe80a8bec81ef6f144 |
op_doi |
https://doi.org/10.5194/gmd-16-3501-2023 |
container_title |
Geoscientific Model Development |
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16 |
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12 |
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3501 |
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3534 |
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