Northeast Asian Climatic Variability Over the Last 300,000 Years

地质证据和大气环流模式实验表明，季风气候对轨道变化引起的日照变化有很强的响应。来自东北亚和西北太平洋的准气候数据表明，受东北亚季风的影响，这些陆地和海洋环境对全球气候变化的响应是复杂的，在时间和地理上都不同。利用通过分析海洋岩心的花粉、放射虫、氧同位素和矿物学而产生的高分辨率陆地、海洋和大气气候信息，将研究区域对晚更新世气候变化的响应。东北亚季风的强度和持续时间的变化将通过两个完整的冰期到退冰期来确定。这项工作很重要，因为它将建立一个基于经验的东北亚季风概念模式；一个独立的模式，与基于数值大气环流模式的模拟进行比较。

Geologic evidence and general circulation model experiments show that the monsoon climates respond very strongly to insolation changes induced by orbital variations. Pleoclimate data from northeast Asia and northwest Pacific Ocean suggest that these terrestrial and marine environments, influenced by northeast Asian monsoon, respond to global climate changes in a complex way that varies temporally and geographically. Using high resolution terrestrial, marine, and atmospheric climatic information generated from analyses of pollen, radiolaria, oxygen isotopes, and mineralogy of sediments from marine cores, the regional response to late Pleistocene climate variations will be examnined. The changes in the intensity and duration of the northeast Asian monsoon through two complete glaciation to deglaciation cycles will be determined. This work is important because it will enable construction of an empirically based conceptual model of northeast Asian monsoon; an independent model to compare with simulations based on numerical general circulation models.