The flexible global ocean-atmosphere-land system model, Grid-point Version 2: FGOALS-g2
The flexible global ocean-atmosphere-land system model, Grid-point Version 2: FGOALS-g2
复制标题
灵活的全球海洋-大气-陆地系统模型，网格点版本 2：FGOALS-g2
DOI：
10.1007/s00376-012-2140-6
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发表时间：
2013-05-01
影响因子：
5.8
通讯作者：
Qiao Fangli
中科院分区：
文献类型：
--
作者：
Li Lijuan;Lin Pengfei;Qiao Fangli
本文主要介绍了全球海气陆系统网格点模式（FGOALS-g2）的发展过程，并根据CMIP 5第五阶段的试验设计，利用工业化前的控制运行和4个历史运行的结果对其性能进行了初步评价。结果表明，FGOALS-g2在气候平均态、气候变率和20世纪世纪地表温度演变等方面较FGOALS-g1有了明显的改进。例如，FGOALS-g2更好地模拟了热带陆地降水、东亚季风降水及其季节循环、MJO和ENSO的频率，这些都与更新的积云参数化方案密切相关，以及减轻了其大气模式中浅对流和深对流方案、云分数、云宏/微物理过程和边界层方案中一些关键参数的不确定性。在新的版本中，太平洋海表温度沿着赤道的年循环得到了显著的改善。海冰盐度模拟是FGOALS-g2的独特之处之一，尽管它与南极的经验观测不一致。
This study mainly introduces the development of the Flexible Global Ocean-Atmosphere-Land System Model: Grid-point Version 2 (FGOALS-g2) and the preliminary evaluations of its performances based on results from the pre-industrial control run and four members of historical runs according to the fifth phase of the Coupled Model Intercomparison Project (CMIP5) experiment design. The results suggest that many obvious improvements have been achieved by the FGOALS-g2 compared with the previous version,FGOALS-g1, including its climatological mean states, climate variability, and 20th century surface temperature evolution. For example,FGOALS-g2 better simulates the frequency of tropical land precipitation, East Asian Monsoon precipitation and its seasonal cycle, MJO and ENSO, which are closely related to the updated cumulus parameterization scheme, as well as the alleviation of uncertainties in some key parameters in shallow and deep convection schemes, cloud fraction, cloud macro/microphysical processes and the boundary layer scheme in its atmospheric model. The annual cycle of sea surface temperature along the equator in the Pacific is significantly improved in the new version. The sea ice salinity simulation is one of the unique characteristics of FGOALS-g2, although it is somehow inconsistent with empirical observations in the Antarctic.