【摘要】 本文用一个全球大气九层谱模式，模拟了七月份南极两个不同海区海冰区异常对大气环流的影响。主要讨论了大气环流对南极海冰异常存在的局地性的及全球性的响应。细致分析了二个区域极冰异常导致的南北半球低频波列分布的差异，以及它们对热带区域及亚洲季风区降水、越赤道气流的不同影响。最后则依据我们的模拟结果，讨论了南极海冰异常影响全球大气环流的动力学机制。更多还原

【Abstract】 In this paper, we used a nine-layer global spectral general circulation model to simulate the effects of Antarctic sea ice anomalies in two regions on the atmospheric circulations. The difference between the low frequency wavetrains induced by Antarctic sea ice anomalies in these two regions, and the effects of them on the tropical rainfall and cross-equatorial currents and Asian summer monsoon are analyzed, we discussed the physical mechanism of the effects of Antarctic sea ice anomalies on the atmospheric circulations.更多还原