globalchange  > 气候变化事实与影响
DOI: 10.1175/JCLI-D-12-00417.1
Scopus记录号: 2-s2.0-84884226683
论文题名:
Evaluating the land and ocean components of the global carbon cycle in the CMIP5 earth system models
作者: Anav A.; Friedlingstein P.; Kidston M.; Bopp L.; Ciais P.; Cox P.; Jones C.; Jung M.; Myneni R.; Zhu Z.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期:18
起始页码: 6801
结束页码: 6843
语种: 英语
Scopus关键词: Climate projection ; Earth system model ; Global carbon cycle ; Intergovernmental panel on climate changes ; Ocean carbon cycle ; Probability density functions (PDFs) ; Regional variation ; Temporal characteristics ; Carbon ; Climate change ; Computer simulation ; Earth (planet) ; Probability density function ; Climate models ; carbon cycle ; climate modeling ; leaf area index ; numerical model ; photosynthesis ; primary production ; probability density function
英文摘要: The authors assess the ability of 18 Earth system models to simulate the land and ocean carbon cycle for the present climate. These models will be used in the next Intergovernmental Panel on Climate Change (IPCC) Fifth AssessmentReport (AR5) for climate projections, and such evaluation allows identification of the strengths and weaknesses of individual coupled carbon-climate models as well as identification of systematic biases of themodels. Results show thatmodels correctly reproduce the main climatic variables controlling the spatial and temporal characteristics of the carbon cycle. The seasonal evolution of the variables under examination is well captured. However, weaknesses appear when reproducing specific fields: in particular, considering the land carbon cycle, a general overestimation of photosynthesis and leaf area index is found for most of the models, while the ocean evaluation shows that quite a few models underestimate the primary production. The authors also propose climate and carbon cycle performance metrics in order to assess whether there is a set of consistently better models for reproducing the carbon cycle. Averaged seasonal cycles and probability density functions (PDFs) calculated from model simulations are compared with the corresponding seasonal cycles and PDFs from different observed datasets. Although the metrics used in this study allow identification of somemodels as better or worse than the average, the ranking of this study is partially subjective because of the choice of the variables under examination and also can be sensitive to the choice of reference data. In addition, it was found that the model performances show significant regional variations. © 2013 American Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51680
Appears in Collections:气候变化事实与影响

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作者单位: College of Engineering, Mathematics, and Physical Sciences, University of Exeter, Exeter, United Kingdom; Laboratoire des Sciences du Climat et de l'Environnement, Gif sur Yvette, France; Met Office Hadley Centre, Exeter, United Kingdom; Max Planck Institute for Biogeochemistry, Jena, Germany; Department of Geography and Environment, Boston University, Boston, MA, United States

Recommended Citation:
Anav A.,Friedlingstein P.,Kidston M.,et al. Evaluating the land and ocean components of the global carbon cycle in the CMIP5 earth system models[J]. Journal of Climate,2013-01-01,26(18)
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