论文部分内容阅读
对于所观测到的反映末次冰期特色的这种气候不稳定性的原因,还没有清楚而明确一致的认识.由一种气候状态向另一种气候状态快速的转变究竟是由其内部还是外部驱动力引起的呢?Borecher等人首先提出在格陵兰冰芯中观察到的气候快速变化代表着两种气候模式的变化,并且认为这种波动是由北大西洋的温盐环流的开启与关闭所引起的.在大洋一大气系统的变化方面已提出一种可供选择的模型是冰盖内部动力学引起了劳伦蒂德冰盖大小周期性的变化.这些冰量的变化造成了所见到的末次冰期北大西洋气候的不稳定性.
There is no clear and unambiguous consensus about the observed causes of such climate instability that characterize the last glacial period, whether the rapid transition from one climate condition to another is driven internally or externally Borecher et al. First proposed that the rapid climate change observed in the Greenland ice core represents a change in both climate patterns and is believed to be caused by the opening and closing of the North Atlantic thermohaline circulation An alternative model for the ocean-atmosphere system has been proposed in which the internal kinetics of the ice sheet cause a periodic change in the size of the Laurentide ice sheet, and these changes in ice volume result in the last seen Instability of the North Atlantic climate in the Ice Age.