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DOI10.5194/gmd-10-2567-2017
The carbon cycle in the Australian Community Climate and Earth System Simulator (ACCESS-ESM1) - Part 1: Model description and pre-industrial simulation
Law, Rachel M.1; Ziehn, Tilo1; Matear, Richard J.2; Lenton, Andrew2; Chamberlain, Matthew A.2; Stevens, Lauren E.1; Wang, Ying-Ping1; Srbinovsky, Jhan1; Bi, Daohua1; Yan, Hailin1,4; Vohralik, Peter F.3
通讯作者Law, Rachel M.
来源期刊GEOSCIENTIFIC MODEL DEVELOPMENT
ISSN1991-959X
EISSN1991-9603
出版年2017
卷号10期号:7页码:2567-2590
英文摘要

Earth system models (ESMs) that incorporate carbon-climate feedbacks represent the present state of the art in climate modelling. Here, we describe the Australian Community Climate and Earth System Simulator (ACCESS)-ESM1, which comprises atmosphere (UM7.3), land (CABLE), ocean (MOM4p1), and sea-ice (CICE4.1) components with OASIS-MCT coupling, to which ocean and land carbon modules have been added. The land carbon model (as part of CABLE) can optionally include both nitrogen and phosphorous limitation on the land carbon uptake. The ocean carbon model (WOMBAT, added to MOM) simulates the evolution of phosphate, oxygen, dissolved inorganic carbon, alkalinity and iron with one class of phytoplankton and zooplankton. We perform multi-centennial preindustrial simulations with a fixed atmospheric CO2 concentration and different land carbon model configurations (prescribed or prognostic leaf area index). We evaluate the equilibration of the carbon cycle and present the spatial and temporal variability in key carbon exchanges. Simulating leaf area index results in a slight warming of the atmosphere relative to the prescribed leaf area index case. Seasonal and interannual variations in land carbon exchange are sensitive to whether leaf area index is simulated, with interannual variations driven by variability in precipitation and temperature. We find that the response of the ocean carbon cycle shows reasonable agreement with observations. While our model overestimates surface phosphate values, the global primary productivity agrees well with observations. Our analysis highlights some deficiencies inherent in the carbon models and where the carbon simulation is negatively impacted by known biases in the underlying physical model and consequent limits on the applicability of this model version. We conclude the study with a brief discussion of key developments required to further improve the realism of our model simulation.


类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000404790200002
WOS关键词COUPLED MODEL ; TERRESTRIAL BIOSPHERE ; CMIP5 SIMULATIONS ; FUTURE CLIMATE ; SPIN-UP ; OCEAN ; NITROGEN ; IMPACT ; IMPLEMENTATION ; PERFORMANCE
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
来源机构Commonwealth Scientific and Industrial Research Organisation
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/199323
作者单位1.CSIRO Oceans & Atmosphere, PMB 1, Aspendale, Vic, Australia;
2.CSIRO Oceans & Atmosphere, Hobart, Tas, Australia;
3.CSIRO Mfg, Lindfield, NSW, Australia;
4.Bur Meteorol, Melbourne, Vic, Australia
推荐引用方式
GB/T 7714
Law, Rachel M.,Ziehn, Tilo,Matear, Richard J.,et al. The carbon cycle in the Australian Community Climate and Earth System Simulator (ACCESS-ESM1) - Part 1: Model description and pre-industrial simulation[J]. Commonwealth Scientific and Industrial Research Organisation,2017,10(7):2567-2590.
APA Law, Rachel M..,Ziehn, Tilo.,Matear, Richard J..,Lenton, Andrew.,Chamberlain, Matthew A..,...&Vohralik, Peter F..(2017).The carbon cycle in the Australian Community Climate and Earth System Simulator (ACCESS-ESM1) - Part 1: Model description and pre-industrial simulation.GEOSCIENTIFIC MODEL DEVELOPMENT,10(7),2567-2590.
MLA Law, Rachel M.,et al."The carbon cycle in the Australian Community Climate and Earth System Simulator (ACCESS-ESM1) - Part 1: Model description and pre-industrial simulation".GEOSCIENTIFIC MODEL DEVELOPMENT 10.7(2017):2567-2590.
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