ORCHIDEE MICT-LEAK (r5459), a global model for the production, transport, and transformation of dissolved organic carbon from Arctic permafrost regions – Part 1: Rationale, model description, and simulation protocol
Few Earth system models adequately represent the unique permafrost soil biogeochemistry and its respective processes; this significantly contributes to uncertainty in estimating their responses, and that of the planet at large, to warming. Likewise, the riverine component of what is known as the “bo...
Published in: | Geoscientific Model Development |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2019
|
Subjects: | |
Online Access: | https://doi.org/10.5194/gmd-12-3503-2019 https://doaj.org/article/cfcb83e0eb8b48e1989ce65d806b1add |
id |
ftdoajarticles:oai:doaj.org/article:cfcb83e0eb8b48e1989ce65d806b1add |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:cfcb83e0eb8b48e1989ce65d806b1add 2023-05-15T15:00:51+02:00 ORCHIDEE MICT-LEAK (r5459), a global model for the production, transport, and transformation of dissolved organic carbon from Arctic permafrost regions – Part 1: Rationale, model description, and simulation protocol S. P. K. Bowring R. Lauerwald B. Guenet D. Zhu M. Guimberteau A. Tootchi A. Ducharne P. Ciais 2019-08-01T00:00:00Z https://doi.org/10.5194/gmd-12-3503-2019 https://doaj.org/article/cfcb83e0eb8b48e1989ce65d806b1add EN eng Copernicus Publications https://www.geosci-model-dev.net/12/3503/2019/gmd-12-3503-2019.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-12-3503-2019 1991-959X 1991-9603 https://doaj.org/article/cfcb83e0eb8b48e1989ce65d806b1add Geoscientific Model Development, Vol 12, Pp 3503-3521 (2019) Geology QE1-996.5 article 2019 ftdoajarticles https://doi.org/10.5194/gmd-12-3503-2019 2022-12-31T03:52:09Z Few Earth system models adequately represent the unique permafrost soil biogeochemistry and its respective processes; this significantly contributes to uncertainty in estimating their responses, and that of the planet at large, to warming. Likewise, the riverine component of what is known as the “boundless carbon cycle” is seldom recognised in Earth system modelling. The hydrological mobilisation of organic material from a ∼1330 –1580 PgC carbon stock to the river network results in either sedimentary settling or atmospheric “evasion”, processes widely expected to increase with amplified Arctic climate warming. Here, the production, transport, and atmospheric release of dissolved organic carbon (DOC) from high-latitude permafrost soils into inland waters and the ocean are explicitly represented for the first time in the land surface component (ORCHIDEE) of a CMIP6 global climate model (Institut Pierre Simon Laplace – IPSL). The model, ORCHIDEE MICT-LEAK, which represents the merger of previously described ORCHIDEE versions MICT and LEAK, mechanistically represents (a) vegetation and soil physical processes for high-latitude snow, ice, and soil phenomena and (b) the cycling of DOC and CO 2 , including atmospheric evasion, along the terrestrial–aquatic continuum from soils through the river network to the coast at 0.5 to 2 ∘ resolution. This paper, the first in a two-part study, presents the rationale for including these processes in a high-latitude-specific land surface model, then describes the model with a focus on novel process implementations, followed by a summary of the model configuration and simulation protocol. The results of these simulation runs, conducted for the Lena River basin, are evaluated against observational data in the second part of this study. Article in Journal/Newspaper Arctic Ice lena river permafrost Directory of Open Access Journals: DOAJ Articles Arctic Laplace ENVELOPE(141.467,141.467,-66.782,-66.782) Geoscientific Model Development 12 8 3503 3521 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 |
spellingShingle |
Geology QE1-996.5 S. P. K. Bowring R. Lauerwald B. Guenet D. Zhu M. Guimberteau A. Tootchi A. Ducharne P. Ciais ORCHIDEE MICT-LEAK (r5459), a global model for the production, transport, and transformation of dissolved organic carbon from Arctic permafrost regions – Part 1: Rationale, model description, and simulation protocol |
topic_facet |
Geology QE1-996.5 |
description |
Few Earth system models adequately represent the unique permafrost soil biogeochemistry and its respective processes; this significantly contributes to uncertainty in estimating their responses, and that of the planet at large, to warming. Likewise, the riverine component of what is known as the “boundless carbon cycle” is seldom recognised in Earth system modelling. The hydrological mobilisation of organic material from a ∼1330 –1580 PgC carbon stock to the river network results in either sedimentary settling or atmospheric “evasion”, processes widely expected to increase with amplified Arctic climate warming. Here, the production, transport, and atmospheric release of dissolved organic carbon (DOC) from high-latitude permafrost soils into inland waters and the ocean are explicitly represented for the first time in the land surface component (ORCHIDEE) of a CMIP6 global climate model (Institut Pierre Simon Laplace – IPSL). The model, ORCHIDEE MICT-LEAK, which represents the merger of previously described ORCHIDEE versions MICT and LEAK, mechanistically represents (a) vegetation and soil physical processes for high-latitude snow, ice, and soil phenomena and (b) the cycling of DOC and CO 2 , including atmospheric evasion, along the terrestrial–aquatic continuum from soils through the river network to the coast at 0.5 to 2 ∘ resolution. This paper, the first in a two-part study, presents the rationale for including these processes in a high-latitude-specific land surface model, then describes the model with a focus on novel process implementations, followed by a summary of the model configuration and simulation protocol. The results of these simulation runs, conducted for the Lena River basin, are evaluated against observational data in the second part of this study. |
format |
Article in Journal/Newspaper |
author |
S. P. K. Bowring R. Lauerwald B. Guenet D. Zhu M. Guimberteau A. Tootchi A. Ducharne P. Ciais |
author_facet |
S. P. K. Bowring R. Lauerwald B. Guenet D. Zhu M. Guimberteau A. Tootchi A. Ducharne P. Ciais |
author_sort |
S. P. K. Bowring |
title |
ORCHIDEE MICT-LEAK (r5459), a global model for the production, transport, and transformation of dissolved organic carbon from Arctic permafrost regions – Part 1: Rationale, model description, and simulation protocol |
title_short |
ORCHIDEE MICT-LEAK (r5459), a global model for the production, transport, and transformation of dissolved organic carbon from Arctic permafrost regions – Part 1: Rationale, model description, and simulation protocol |
title_full |
ORCHIDEE MICT-LEAK (r5459), a global model for the production, transport, and transformation of dissolved organic carbon from Arctic permafrost regions – Part 1: Rationale, model description, and simulation protocol |
title_fullStr |
ORCHIDEE MICT-LEAK (r5459), a global model for the production, transport, and transformation of dissolved organic carbon from Arctic permafrost regions – Part 1: Rationale, model description, and simulation protocol |
title_full_unstemmed |
ORCHIDEE MICT-LEAK (r5459), a global model for the production, transport, and transformation of dissolved organic carbon from Arctic permafrost regions – Part 1: Rationale, model description, and simulation protocol |
title_sort |
orchidee mict-leak (r5459), a global model for the production, transport, and transformation of dissolved organic carbon from arctic permafrost regions – part 1: rationale, model description, and simulation protocol |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/gmd-12-3503-2019 https://doaj.org/article/cfcb83e0eb8b48e1989ce65d806b1add |
long_lat |
ENVELOPE(141.467,141.467,-66.782,-66.782) |
geographic |
Arctic Laplace |
geographic_facet |
Arctic Laplace |
genre |
Arctic Ice lena river permafrost |
genre_facet |
Arctic Ice lena river permafrost |
op_source |
Geoscientific Model Development, Vol 12, Pp 3503-3521 (2019) |
op_relation |
https://www.geosci-model-dev.net/12/3503/2019/gmd-12-3503-2019.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-12-3503-2019 1991-959X 1991-9603 https://doaj.org/article/cfcb83e0eb8b48e1989ce65d806b1add |
op_doi |
https://doi.org/10.5194/gmd-12-3503-2019 |
container_title |
Geoscientific Model Development |
container_volume |
12 |
container_issue |
8 |
container_start_page |
3503 |
op_container_end_page |
3521 |
_version_ |
1766332900265951232 |