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中世纪暖期是过去2000 a以来最为重要的一个时期。该温暖事件是否具有全球性特征,其变化是否具有同步性,温度和降水变化的幅度如何?依据大量的研究成果,虽然对中世纪暖期的气候变化不甚清楚,我们仍然认为这一事件很可能是全球性的,而非区域性的。各种证据表明该时期的温暖程度不及20世纪,而且中世纪暖期表现出不连续的特征,降水也存在区域差异,这主要是因为降水和温度有着不同的响应自然驱动的物理特性。大量重建和模拟显示,诸如太阳辐射和火山作用的自然因素可以解释这一时期的大部分气候变化特征,但气候系统内部的相互作用是不能被忽视的。因此,将内部因素和外部因素联合起来揭示气候变化的机制就显得非常重要。
Medieval warm period is the most important period since the past 2000 a. Whether this warm event has a global character, whether its changes are in synchronicity, and how much does temperature and precipitation change? Based on a large amount of research results, although it is not clear about the climate change during the Middle Ages warm period, we still think this event is likely It is global rather than regional. Various evidences indicate that the warmth of this period was less than that of the 20th century, and that the Middle Ages were characterized by discontinuities and regional differences in precipitation, mainly due to the different natural responses to precipitation and temperature. Extensive reconstructions and simulations have shown that natural factors such as solar radiation and volcanism can explain most of the climate change characteristics of the period, but the interactions within the climate system can not be ignored. Therefore, it is very important to combine the internal and external factors to reveal the mechanism of climate change.