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为了探求太阳辐射和高纬地区温度对东亚夏季风的驱动机理,用动力反演的方法建立了东亚夏季风的动力方程,为东亚夏季风的驱动机制研究提供了一种新的方法。在轨道尺度上得到如下结论:东亚夏季风是由南极温度和太阳辐射量共同驱动的复杂非线性动力系统;太阳辐射是驱动东亚夏季风的最重要驱动力,驱动贡献至少达到67.57%,南极温度次之,其驱动贡献达到21.58%,格陵兰温度对东亚夏季风的驱动不起作用;太阳辐射量的增加,会驱使东亚夏季风增强;南极温度存在一个阈值,在阈值两侧,对东亚夏季风具有不同的驱动机制;东亚夏季风对太阳辐射驱动的响应,还部分地依赖于季风强度的背景值。
In order to explore the driving mechanism of solar radiation and the high temperature in the East Asian summer monsoon, the dynamic equation of the East Asian summer monsoon was established by dynamic inversion, which provided a new method for the study of the driving mechanism of the East Asian summer monsoon. The following conclusions can be drawn from the orbital scale: the East Asian summer monsoon is a complex nonlinear dynamic system driven by Antarctic temperature and solar radiation. Solar radiation is the most important driving force driving the East Asian summer monsoon, contributing at least 67.57% of the driving force. Antarctic temperature Followed by the driving contribution of 21.58%. Greenland temperature does not contribute to the driving of East Asian summer monsoon. The increase of solar radiation will drive the increase of East Asian summer monsoon. There is a threshold of Antarctic temperature. On both sides of the threshold, With different driving mechanisms. The response of East Asian summer monsoon to solar radiation drive also depends in part on the background value of monsoon intensity.