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本文分析了耦合模式比较计划第五阶段(CMIP5)中的各大气环流模式对西北太平洋副热带高压系统在厄尔尼诺衰减期夏季的模拟。结果表明大部分模式都能够重现厄尔尼诺衰减期夏季的副高所伴随的大尺度环流的空间分布特征。大多数模式都可以合理地模拟出副高在厄尔尼诺衰减期夏季的位置相对于其气候平均态位置的向西偏移。这些模式对7至8月副高夏季季节内北跳的模拟强于对其东撤的模拟;几乎所有的模式都可以准确地模拟出副高的北跳,而只有三分之一的模式能够模拟出副高的东撤。模式中的副高在厄尔尼诺衰减期夏季位置的偏差很大程度上取决于其气候平均态位置的偏差。
In this paper, we simulate the summer circulation of the Northwest Pacific subtropical high during the El Niño decay period by analyzing the general circulation patterns in the fifth phase (CMIP5) of the coupled pattern comparison plan. The results show that most of the models can reproduce the spatial distribution characteristics of the large-scale circulation accompanied by the subtropical high over the summer El Niño decay period. Most models can reasonably simulate the westward offset of the subtropical high relative to its climatological mean position during the El Niño summer decay. These models are more powerful for simulating north beats in the summer subtropical high from July to August than for their eastward withdrawals; almost all modes accurately model the north jump of the subtropical high, whereas only one-third of the modes can Simulation of the Deputy East withdrawal. The variation of the summer subtropical high in the pattern during the El Niño decay period depends very much on the deviation of the climate mean position.