Towards a more detailed representation of high-latitude vegetation in the global land surface model ORCHIDEE (ORC-HL-VEGv1.0)
International audience Simulation of vegetation-climate feedbacks in high latitudes in the ORCHIDEE land surface model was improved by the addition of three new circumpolar plant functional types (PFTs), namely non-vascular plants representing bryophytes and lichens, Arctic shrubs and Arctic C 3 gra...
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
2017
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Subjects: | |
Online Access: | https://hal.science/hal-02922334 https://hal.science/hal-02922334/document https://hal.science/hal-02922334/file/gmd-10-4693-2017.pdf https://doi.org/10.5194/gmd-10-4693-2017 |
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Archives ouvertes de Paris-Saclay |
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English |
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[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Druel, Arsène Peylin, Philippe Krinner, Gerhard Ciais, Philippe Viovy, Nicolas Peregon, Anna Bastrikov, Vladislav Kosykh, Natalya Mironycheva-Tokareva, Nina Towards a more detailed representation of high-latitude vegetation in the global land surface model ORCHIDEE (ORC-HL-VEGv1.0) |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Simulation of vegetation-climate feedbacks in high latitudes in the ORCHIDEE land surface model was improved by the addition of three new circumpolar plant functional types (PFTs), namely non-vascular plants representing bryophytes and lichens, Arctic shrubs and Arctic C 3 grasses. Non-vascular plants are assigned no stomatal con-ductance, very shallow roots, and can desiccate during dry episodes and become active again during wet periods, which gives them a larger phenological plasticity (i.e. adaptability and resilience to severe climatic constraints) compared to grasses and shrubs. Shrubs have a specific carbon allocation scheme, and differ from trees by their larger survival rates in winter, due to protection by snow. Arctic C 3 grasses have the same equations as in the original ORCHIDEE version , but different parameter values, optimised from in situ observations of biomass and net primary productivity (NPP) in Siberia. In situ observations of living biomass and productivity from Siberia were used to calibrate the parameters of the new PFTs using a Bayesian optimisation procedure. With the new PFTs, we obtain a lower NPP by 31 % (from 55 • N), as well as a lower roughness length (−41 %), transpi-ration (−33 %) and a higher winter albedo (by +3.6 %) due to increased snow cover. A simulation of the water balance and runoff and drainage in the high northern latitudes using the new PFTs results in an increase of fresh water discharge in the Arctic ocean by 11 % (+140 km 3 yr −1), owing to less evapotranspiration. Future developments should focus on the competition between these three PFTs and boreal tree PFTs, in order to simulate their area changes in response to climate change, and the effect of carbon-nitrogen interactions. |
author2 |
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) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) Modélisation des Surfaces et Interfaces Continentales (MOSAIC) 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)) ICOS-ATC (ICOS-ATC) Siberian Branch of the Russian Academy of Sciences (SB RAS) |
format |
Article in Journal/Newspaper |
author |
Druel, Arsène Peylin, Philippe Krinner, Gerhard Ciais, Philippe Viovy, Nicolas Peregon, Anna Bastrikov, Vladislav Kosykh, Natalya Mironycheva-Tokareva, Nina |
author_facet |
Druel, Arsène Peylin, Philippe Krinner, Gerhard Ciais, Philippe Viovy, Nicolas Peregon, Anna Bastrikov, Vladislav Kosykh, Natalya Mironycheva-Tokareva, Nina |
author_sort |
Druel, Arsène |
title |
Towards a more detailed representation of high-latitude vegetation in the global land surface model ORCHIDEE (ORC-HL-VEGv1.0) |
title_short |
Towards a more detailed representation of high-latitude vegetation in the global land surface model ORCHIDEE (ORC-HL-VEGv1.0) |
title_full |
Towards a more detailed representation of high-latitude vegetation in the global land surface model ORCHIDEE (ORC-HL-VEGv1.0) |
title_fullStr |
Towards a more detailed representation of high-latitude vegetation in the global land surface model ORCHIDEE (ORC-HL-VEGv1.0) |
title_full_unstemmed |
Towards a more detailed representation of high-latitude vegetation in the global land surface model ORCHIDEE (ORC-HL-VEGv1.0) |
title_sort |
towards a more detailed representation of high-latitude vegetation in the global land surface model orchidee (orc-hl-vegv1.0) |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.science/hal-02922334 https://hal.science/hal-02922334/document https://hal.science/hal-02922334/file/gmd-10-4693-2017.pdf https://doi.org/10.5194/gmd-10-4693-2017 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
albedo Arctic Arctic Ocean Climate change Siberia |
genre_facet |
albedo Arctic Arctic Ocean Climate change Siberia |
op_source |
ISSN: 1991-9603 EISSN: 1991-959X Geoscientific Model Development https://hal.science/hal-02922334 Geoscientific Model Development, 2017, 10 (12), pp.4693-4722. ⟨10.5194/gmd-10-4693-2017⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/gmd-10-4693-2017 hal-02922334 https://hal.science/hal-02922334 https://hal.science/hal-02922334/document https://hal.science/hal-02922334/file/gmd-10-4693-2017.pdf doi:10.5194/gmd-10-4693-2017 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/gmd-10-4693-2017 |
container_title |
Geoscientific Model Development |
container_volume |
10 |
container_issue |
12 |
container_start_page |
4693 |
op_container_end_page |
4722 |
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1802012021120565248 |
spelling |
ftuniparissaclay:oai:HAL:hal-02922334v1 2024-06-16T07:33:06+00:00 Towards a more detailed representation of high-latitude vegetation in the global land surface model ORCHIDEE (ORC-HL-VEGv1.0) Druel, Arsène Peylin, Philippe Krinner, Gerhard Ciais, Philippe Viovy, Nicolas Peregon, Anna Bastrikov, Vladislav Kosykh, Natalya Mironycheva-Tokareva, Nina 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) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) Modélisation des Surfaces et Interfaces Continentales (MOSAIC) 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)) ICOS-ATC (ICOS-ATC) Siberian Branch of the Russian Academy of Sciences (SB RAS) 2017 https://hal.science/hal-02922334 https://hal.science/hal-02922334/document https://hal.science/hal-02922334/file/gmd-10-4693-2017.pdf https://doi.org/10.5194/gmd-10-4693-2017 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/gmd-10-4693-2017 hal-02922334 https://hal.science/hal-02922334 https://hal.science/hal-02922334/document https://hal.science/hal-02922334/file/gmd-10-4693-2017.pdf doi:10.5194/gmd-10-4693-2017 info:eu-repo/semantics/OpenAccess ISSN: 1991-9603 EISSN: 1991-959X Geoscientific Model Development https://hal.science/hal-02922334 Geoscientific Model Development, 2017, 10 (12), pp.4693-4722. ⟨10.5194/gmd-10-4693-2017⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2017 ftuniparissaclay https://doi.org/10.5194/gmd-10-4693-2017 2024-05-17T00:06:40Z International audience Simulation of vegetation-climate feedbacks in high latitudes in the ORCHIDEE land surface model was improved by the addition of three new circumpolar plant functional types (PFTs), namely non-vascular plants representing bryophytes and lichens, Arctic shrubs and Arctic C 3 grasses. Non-vascular plants are assigned no stomatal con-ductance, very shallow roots, and can desiccate during dry episodes and become active again during wet periods, which gives them a larger phenological plasticity (i.e. adaptability and resilience to severe climatic constraints) compared to grasses and shrubs. Shrubs have a specific carbon allocation scheme, and differ from trees by their larger survival rates in winter, due to protection by snow. Arctic C 3 grasses have the same equations as in the original ORCHIDEE version , but different parameter values, optimised from in situ observations of biomass and net primary productivity (NPP) in Siberia. In situ observations of living biomass and productivity from Siberia were used to calibrate the parameters of the new PFTs using a Bayesian optimisation procedure. With the new PFTs, we obtain a lower NPP by 31 % (from 55 • N), as well as a lower roughness length (−41 %), transpi-ration (−33 %) and a higher winter albedo (by +3.6 %) due to increased snow cover. A simulation of the water balance and runoff and drainage in the high northern latitudes using the new PFTs results in an increase of fresh water discharge in the Arctic ocean by 11 % (+140 km 3 yr −1), owing to less evapotranspiration. Future developments should focus on the competition between these three PFTs and boreal tree PFTs, in order to simulate their area changes in response to climate change, and the effect of carbon-nitrogen interactions. Article in Journal/Newspaper albedo Arctic Arctic Ocean Climate change Siberia Archives ouvertes de Paris-Saclay Arctic Arctic Ocean Geoscientific Model Development 10 12 4693 4722 |