Comparing the Arctic climate in Chinese and other CMIP6 models

Abstract

This paper evaluates and compares the historical simulations of the Arctic winter climate in ten Chinese models and twenty-seven other international models from the Coupled Model Intercomparison Project phase 6 (CMIP6). The primary purpose of this assessment is to provide an overview of the simulated performance of the Chinese models in simulating the Arctic climate and to understand how well they perform internationally. The results show that in terms of climate state, the performance of the Chinese models is comparable to that of other international models in simulating Arctic temperature and atmospheric climatology. In terms of trends, both the Chinese models and other international models simulate Arctic warming well. In addition, the CMIP6 multimodel ensemble mean (MME) does not show a significant positive trend of Arctic atmospheric circulations compared to the observations.摘要本研究采用来自耦合模式相互比较项目第六阶段 (CMIP6) 模式, 评估和对比了10个中国模式和27个其他国际模式对北极冬季气候的历史模拟性能. 本文的主要目的是展现中国模式对北极气候的模拟能力, 并了解其在国际上的模拟水平. 结果表明, 对于气候态的模拟, 中国模式在模拟北极温度场和大气场这些气候学方面与其他国际模式相当. 而在趋势方面, 中国模式同样和其他国际模式都能很好地模拟出北极变暖的特征. 此外, 与观测到的环流相比, CMIP6多模式集合平均值 (MME) 并没有显著的正趋势, 这可能是因为外部强迫的作用.