Language:

ORCHIDEE-MICT (v8.4.1), a land surface model for the high latitudes: model description and validation

Geoscientific Model Development, 2018, Vol.11 (1), p.121-163 [Peer Reviewed Journal]

Copyright Copernicus GmbH 2018 ;2018. This work is published under https://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 1991-9603 ;ISSN: 1991-962X ;ISSN: 1991-959X ;EISSN: 1991-9603 ;DOI: 10.5194/gmd-11-121-2018

Full text available

Citations Cited by

Actions
1. Add to My Research
2. Remove from My Research
3. E-mail
4. Print
5. Permalink
6. Citation
7. EasyBib
8. EndNote
9. RefWorks
10. Delicious
11. Export RIS
12. Export BibTeX

Title:
ORCHIDEE-MICT (v8.4.1), a land surface model for the high latitudes: model description and validation
Author: Guimberteau, Matthieu ; Zhu, Dan ; Maignan, Fabienne ; Huang, Ye ; Chao, Yue ; Dantec-Nédélec, Sarah ; Ottlé, Catherine ; Jornet-Puig, Albert ; Bastos, Ana ; Laurent, Pierre ; Goll, Daniel ; Bowring, Simon ; Chang, Jinfeng ; Guenet, Bertrand ; Tifafi, Marwa ; Peng, Shushi ; Krinner, Gerhard ; Ducharne, Agnès ; Wang, Fuxing ; Wang, Tao ; Wang, Xuhui ; Wang, Yilong ; Yin, Zun ; Lauerwald, Ronny ; Joetzjer, Emilie ; Qiu, Chunjing ; Kim, Hyungjun ; Ciais, Philippe
Subjects: Atmosphere ; Atmospheric models ; Basins ; Boreal forests ; Budgets ; Calibration ; Carbon ; Carbon cycle ; Carbon dioxide ; Carbon dioxide flux ; Computer simulation ; Continental interfaces, environment ; Data processing ; Destabilization ; Environment models ; Feedback ; Fires ; Fluxes ; Frozen ground ; Heat ; Hydraulics ; Hydrologic cycle ; Hydrologic models ; Hydrology ; Ice ; Interactions ; Land surface models ; Land surface temperature ; Latitude ; Northern Hemisphere ; Ocean, Atmosphere ; Permafrost ; Phenology ; Photosynthesis ; Physical properties ; Polar environments ; Respiration ; Rivers ; Sciences of the Universe ; Soil ; Soil temperature ; Soils ; Surface temperature ; Temperature ; Temperature effects ; Temperature gradients ; Terrestrial environments ; Vulnerability ; Water balance ; Water stress
Is Part Of: Geoscientific Model Development, 2018, Vol.11 (1), p.121-163
Description: The high-latitude regions of the Northern Hemisphere are a nexus for the interaction between land surface physical properties and their exchange of carbon and energy with the atmosphere. At these latitudes, two carbon pools of planetary significance – those of the permanently frozen soils (permafrost), and of the great expanse of boreal forest – are vulnerable to destabilization in the face of currently observed climatic warming, the speed and intensity of which are expected to increase with time. Improved projections of future Arctic and boreal ecosystem transformation require improved land surface models that integrate processes specific to these cold biomes. To this end, this study lays out relevant new parameterizations in the ORCHIDEE-MICT land surface model. These describe the interactions between soil carbon, soil temperature and hydrology, and their resulting feedbacks on water and CO2 fluxes, in addition to a recently developed fire module. Outputs from ORCHIDEE-MICT, when forced by two climate input datasets, are extensively evaluated against (i) temperature gradients between the atmosphere and deep soils, (ii) the hydrological components comprising the water balance of the largest high-latitude basins, and (iii) CO2 flux and carbon stock observations. The model performance is good with respect to empirical data, despite a simulated excessive plant water stress and a positive land surface temperature bias. In addition, acute model sensitivity to the choice of input forcing data suggests that the calibration of model parameters is strongly forcing-dependent. Overall, we suggest that this new model design is at the forefront of current efforts to reliably estimate future perturbations to the high-latitude terrestrial environment.
Publisher: Katlenburg-Lindau: Copernicus GmbH
Language: English
Identifier: ISSN: 1991-9603
ISSN: 1991-962X
ISSN: 1991-959X
EISSN: 1991-9603
DOI: 10.5194/gmd-11-121-2018
Source: Hyper Article en Ligne (HAL) (Open Access)
Alma/SFX Local Collection
ProQuest Central
DOAJ Directory of Open Access Journals

Back to results list


INSPIRE LIBRARY - TON DUC THANG UNIVERSITY	(84-028) 37 755 057	Feedback
19 Nguyen Huu Tho St. Dist.7, HCM	thuvien@tdtu.edu.vn	Feedback

ORCHIDEE-MICT (v8.4.1), a land surface model for the high latitudes: model description and validation

Searching Remote Databases, Please Wait