Abstract
The three-member historical simulations by the Chinese Academy of Sciences Flexible Global Ocean-Atmosphere-Land System model, version f3-L (CAS FGOALS-f3-L), which is contributing to phase 6 of the Coupled Model Intercomparison Project (CMIP6), are described in this study. The details of the CAS FGOALS-f3-L model, experiment settings and output datasets are briefly introduced. The datasets include monthly and daily outputs from the atmospheric, oceanic, land and sea-ice component models of CAS FGOALS-f3-L, and all these data have been published online in the Earth System Grid Federation (ESGF, https://esgf-node.llnl.gov/projects/cmip6/). The three ensembles are initialized from the 600th, 650th and 700th model year of the preindustrial experiment (piControl) and forced by the same historical forcing provided by CMIP6 from 1850 to 2014. The performance of the coupled model is validated in comparison with some recent observed atmospheric and oceanic datasets. It is shown that CAS FGOALS-f3-L is able to reproduce the main features of the modern climate, including the climatology of air surface temperature and precipitation, the long-term changes in global mean surface air temperature, ocean heat content and sea surface steric height, and the horizontal and vertical distribution of temperature in the ocean and atmosphere. Meanwhile, like other state-of-the-art coupled GCMs, there are still some obvious biases in the historical simulations, which are also illustrated. This paper can help users to better understand the advantages and biases of the model and the datasets.
摘要
本文介绍了中国科学院大气物理研究所开发的CAS FGOALS-f3-L模式在第6次国际耦合模式比较计划(CMIP6)的历史气候模拟(historical)试验中模拟的3个集合试验的结果。文章简要介绍了CAS FGOALS-f3-L模式的细节、试验的设置以及模式输出的试验结果的数据集。这个数据集包括了月平均和日平均的大气、海洋、陆面和海冰分量模式的输出结果,所有的数据都已经在线发表在了Earth System Grid Federation (ESGF, https://esgf-node.llnl.gov/projects/cmip6/)之上。3个集合试验分别是从工业化前模拟(piControl)试验的第600、650和700年的结果上起始的,并使用相同的由CMIP6提供的历史强迫数据作为外强迫,从1850年运行到2014年。通过与一些最近的大气和海洋观测数据进行对比,耦合模式的模拟性能得以确认。研究展示出CAS FGOALS-f3-L模式能够重建出现代气候的主要特征,包括表面气温和降水的气候平均态,全球平均的表面气温、海洋热含量和海表动力高度的长期变化,以及大气和海洋温度的水平和垂直分布特征等。但同时,与其他的耦合环流模式(GCMs)类似,CAS FGOALS-f3-L在历史气候模拟试验中还存在一些明显的偏差,这些偏差也在文章中指出。本文可以帮助用户更好地理解本模式及其数据集的优点和偏差。
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Data availability statement
The data that support the findings of this study are available from https://esgf-node.llnl.gov/projects/cmip6/.
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Acknowledgements
This study is jointly supported by the Strategic Priority Research Program of Chinese Academy of Sciences (Grant Nos. XDA19060102 and XDB42010400) and the Natural Science Foundation of China (Grant Nos. 41530426, 91958201 and 41931183).
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Guo, Y., Yu, Y., Lin, P. et al. Overview of the CMIP6 Historical Experiment Datasets with the Climate System Model CAS FGOALS-f3-L. Adv. Atmos. Sci. 37, 1057–1066 (2020). https://doi.org/10.1007/s00376-020-2004-4
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DOI: https://doi.org/10.1007/s00376-020-2004-4