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Matrix Approach to Accelerate Spin-Up of CLM5

文献类型：期刊论文

作者Liao, Cuijuan2; Lu, Xingjie3; Huang, Yuanyuan4; Tao, Feng2; Lawrence, David M.5; Koven, Charles D.6; Oleson, Keith W.5; Wieder, William R.5; Kluzek, Erik5; Huang, Xiaomeng2
刊名JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
出版日期2023-08-01
卷号15期号:8页码:16
关键词carbon cycle terrestrial biogeochemistry model spin-up
DOI10.1029/2023MS003625
通讯作者Huang, Xiaomeng(hxm@tsinghua.edu.cn) ; Luo, Yiqi(yl2735@cornell.edu)
英文摘要Numerical models have been developed to investigate and understand responses of biogeochemical cycle to global changes. Steady state, when a system is in dynamic equilibrium, is generally required to initialize these model simulations. However, the spin-up process that is used to achieve steady state pose a great burden to computational resources, limiting the efficiency of global modeling analysis on biogeochemical cycles. This study introduces a new Semi-Analytical Spin-Up (SASU) to tackle this grand challenge. We applied SASU to Community Land Model version 5 and examined its computational efficiency and accuracy. At the Brazil site, SASU is computationally 7 times more efficient than (or saved up to 86% computational cost in comparison with) the traditional native dynamics (ND) spin-up to reach the same steady state. Globally, SASU is computationally 8 times more efficient than the accelerated decomposition spin-up and 50 times more efficient than ND. In summary, SASU achieves the highest computational efficiency for spin-up on site and globally in comparison with other spin-up methods. It is generalizable to wide biogeochemical models and thus makes computationally costly studies (e.g., parameter perturbation ensemble analysis and data assimilation) possible for a better understanding of biogeochemical cycle under climate change.
WOS关键词SOIL ORGANIC-CARBON ; TERRESTRIAL ECOSYSTEM PRODUCTION ; EARTH SYSTEM MODELS ; LAND MODEL ; COUPLED CARBON ; CLIMATE ; BIOGEOCHEMISTRY ; UNCERTAINTY ; DYNAMICS ; PATTERNS
资助项目National Key Research and Development Program of China[2022YFE0195900] ; National Key Research and Development Program of China[2021YFC3101600] ; National Key Research and Development Program of China[2020YFA0607900] ; National Key Research and Development Program of China[2020YFA0608000] ; National Natural Science Foundation of China[42125503] ; National Natural Science Foundation of China[42075137] ; US National Science Foundation[DEB 1655499] ; US National Science Foundation[DEB 2017884] ; US Department of Energy[DE-SC0020227] ; Oak Ridge National Laboratory (ORNL) ; National Science Foundation (NSF) ; National Center for Atmospheric Research - NSF ; [4000158404] ; [4000161830] ; [1852977]
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:001046231900001
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; US National Science Foundation ; US Department of Energy ; Oak Ridge National Laboratory (ORNL) ; National Science Foundation (NSF) ; National Center for Atmospheric Research - NSF
源URL[http://ir.igsnrr.ac.cn/handle/311030/196446]  
专题中国科学院地理科学与资源研究所
通讯作者Huang, Xiaomeng; Luo, Yiqi
作者单位1.Cornell Univ, Sch Integrat Plant Sci, Ithaca, NY 14850 USA
2.Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China
3.Sun Yat Sen Univ, Sch Atmospher Sci, Guangzhou, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
5.Natl Ctr Atmospher Res, Climate & Global Dynam Lab, Boulder, CO USA
6.Lawrence Berkeley Natl Lab, Earth & Environm Sci Div, Berkeley, CA USA
推荐引用方式
GB/T 7714		 Liao, Cuijuan,Lu, Xingjie,Huang, Yuanyuan,et al. Matrix Approach to Accelerate Spin-Up of CLM5[J]. JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS,2023,15(8):16.
APA Liao, Cuijuan.,Lu, Xingjie.,Huang, Yuanyuan.,Tao, Feng.,Lawrence, David M..,...&Luo, Yiqi.(2023).Matrix Approach to Accelerate Spin-Up of CLM5.JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS,15(8),16.
MLA Liao, Cuijuan,et al."Matrix Approach to Accelerate Spin-Up of CLM5".JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS 15.8(2023):16.

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来源：地理科学与资源研究所

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