A simplified permafrost-carbon model for long-term climate studies with the CLIMBER-2 coupled earth system model
International audience We present the development and validation of a simplified permafrost-carbon mechanism for use with the land surface scheme operating in the CLIMBER-2 earth system model. The simplified model estimates the permafrost fraction of each grid cell according to the balance between m...
Published in: | Geoscientific Model Development |
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Main Authors: | , , , |
Other Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2014
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Online Access: | https://insu.hal.science/insu-01204694 https://insu.hal.science/insu-01204694/document https://insu.hal.science/insu-01204694/file/GEOSCIENTIFIC%20MODEL%20DEVELOPMENT.pdf https://doi.org/10.5194/gmd-7-3111-2014 |
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ftceafr:oai:HAL:insu-01204694v1 |
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openpolar |
institution |
Open Polar |
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HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
op_collection_id |
ftceafr |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Crichton, K. Roche, Didier M. Krinner, G. Chappellaz, J. A simplified permafrost-carbon model for long-term climate studies with the CLIMBER-2 coupled earth system model |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience We present the development and validation of a simplified permafrost-carbon mechanism for use with the land surface scheme operating in the CLIMBER-2 earth system model. The simplified model estimates the permafrost fraction of each grid cell according to the balance between modelled cold (below 0 °C) and warm (above 0 °C) days in a year. Areas diagnosed as permafrost are assigned a reduction in soil decomposition rate, thus creating a slow accumulating soil carbon pool. In warming climates, permafrost extent reduces and soil decomposition rates increase, resulting in soil carbon release to the atmosphere. Four accumulation/decomposition rate settings are retained for experiments within the CLIMBER-2(P) model, which are tuned to agree with estimates of total land carbon stocks today and at the last glacial maximum. The distribution of this permafrost-carbon pool is in broad agreement with measurement data for soil carbon content. The level of complexity of the permafrost-carbon model is comparable to other components in the CLIMBER-2 earth system model. |
author2 |
Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Modélisation du climat (CLIM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) |
format |
Article in Journal/Newspaper |
author |
Crichton, K. Roche, Didier M. Krinner, G. Chappellaz, J. |
author_facet |
Crichton, K. Roche, Didier M. Krinner, G. Chappellaz, J. |
author_sort |
Crichton, K. |
title |
A simplified permafrost-carbon model for long-term climate studies with the CLIMBER-2 coupled earth system model |
title_short |
A simplified permafrost-carbon model for long-term climate studies with the CLIMBER-2 coupled earth system model |
title_full |
A simplified permafrost-carbon model for long-term climate studies with the CLIMBER-2 coupled earth system model |
title_fullStr |
A simplified permafrost-carbon model for long-term climate studies with the CLIMBER-2 coupled earth system model |
title_full_unstemmed |
A simplified permafrost-carbon model for long-term climate studies with the CLIMBER-2 coupled earth system model |
title_sort |
simplified permafrost-carbon model for long-term climate studies with the climber-2 coupled earth system model |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://insu.hal.science/insu-01204694 https://insu.hal.science/insu-01204694/document https://insu.hal.science/insu-01204694/file/GEOSCIENTIFIC%20MODEL%20DEVELOPMENT.pdf https://doi.org/10.5194/gmd-7-3111-2014 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
ISSN: 1991-9603 EISSN: 1991-959X Geoscientific Model Development https://insu.hal.science/insu-01204694 Geoscientific Model Development, 2014, 7 (6), pp.3111-3134. ⟨10.5194/gmd-7-3111-2014⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/gmd-7-3111-2014 insu-01204694 https://insu.hal.science/insu-01204694 https://insu.hal.science/insu-01204694/document https://insu.hal.science/insu-01204694/file/GEOSCIENTIFIC%20MODEL%20DEVELOPMENT.pdf doi:10.5194/gmd-7-3111-2014 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/gmd-7-3111-2014 |
container_title |
Geoscientific Model Development |
container_volume |
7 |
container_issue |
6 |
container_start_page |
3111 |
op_container_end_page |
3134 |
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1810470755418243072 |
spelling |
ftceafr:oai:HAL:insu-01204694v1 2024-09-15T18:29:21+00:00 A simplified permafrost-carbon model for long-term climate studies with the CLIMBER-2 coupled earth system model Crichton, K. Roche, Didier M. Krinner, G. Chappellaz, J. Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Modélisation du climat (CLIM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) 2014-12 https://insu.hal.science/insu-01204694 https://insu.hal.science/insu-01204694/document https://insu.hal.science/insu-01204694/file/GEOSCIENTIFIC%20MODEL%20DEVELOPMENT.pdf https://doi.org/10.5194/gmd-7-3111-2014 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/gmd-7-3111-2014 insu-01204694 https://insu.hal.science/insu-01204694 https://insu.hal.science/insu-01204694/document https://insu.hal.science/insu-01204694/file/GEOSCIENTIFIC%20MODEL%20DEVELOPMENT.pdf doi:10.5194/gmd-7-3111-2014 info:eu-repo/semantics/OpenAccess ISSN: 1991-9603 EISSN: 1991-959X Geoscientific Model Development https://insu.hal.science/insu-01204694 Geoscientific Model Development, 2014, 7 (6), pp.3111-3134. ⟨10.5194/gmd-7-3111-2014⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2014 ftceafr https://doi.org/10.5194/gmd-7-3111-2014 2024-07-22T13:31:12Z International audience We present the development and validation of a simplified permafrost-carbon mechanism for use with the land surface scheme operating in the CLIMBER-2 earth system model. The simplified model estimates the permafrost fraction of each grid cell according to the balance between modelled cold (below 0 °C) and warm (above 0 °C) days in a year. Areas diagnosed as permafrost are assigned a reduction in soil decomposition rate, thus creating a slow accumulating soil carbon pool. In warming climates, permafrost extent reduces and soil decomposition rates increase, resulting in soil carbon release to the atmosphere. Four accumulation/decomposition rate settings are retained for experiments within the CLIMBER-2(P) model, which are tuned to agree with estimates of total land carbon stocks today and at the last glacial maximum. The distribution of this permafrost-carbon pool is in broad agreement with measurement data for soil carbon content. The level of complexity of the permafrost-carbon model is comparable to other components in the CLIMBER-2 earth system model. Article in Journal/Newspaper permafrost HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Geoscientific Model Development 7 6 3111 3134 |