Collaborative Research: Late Quaternary Climate of Northeast Asia: Temporal and Spatial Variability

Patricia M. Anderson， University of Washington题目：东北亚晚第四纪气候；该奖项支持一个旨在提高对东亚晚第四纪气候系统认识的项目，该项目通过记录过去18,000个放射性碳年的东北亚气候时空变化，描述可以解释观测到的古气候变化的可能的千年和百年尺度机制，并将东北亚与其他地区（如东南亚、北美西北部、太平洋和太平洋）的结果进行比较，提高对东亚晚第四纪气候系统的认识。北大西洋)，以便更全面地了解区域气候系统的相互关系。通过收集和分析湖泊沉积物中保存的现代和古代植物、地球化学和硅藻数据，重建过去的气候；2)利用改进的放射性碳技术开发高质量的年表；3)研究现代天气气候模式、大气环流模式模拟和概念框架，以确定气候变化的可能原因；4)比较基于代理和模式的古气候解释，以评估观测到的气候历史背后最可能的机制；5)探索与米兰科维奇和亚米兰科维奇尺度事件相关的半球尺度联系。

Abstract ATM-9810177 Anderson, Patricia M. University of Washington Title: Late Quaternary Climate of Northeast Asia: Temporal and Spatial Variability This award supports a project designed to improve the understanding of late Quaternary climatic systems of East Asia by documenting spatial and temporal variations in climates of the last 18,000 radiocarbon years for NE Asia, describing probable millennial and centennial scale mechanisms that can account for the observed paleoclimatic changes, and comparing results from NE Asia to other regions (e.g., SE Asia, NW North America, North Atlantic) to obtain a more holistic view of the inter-relationships of regional climatic systems. Overall research goals will be accomplished by: 1) reconstructing past climates through the collection and analysis of modern and ancient botanical, geochemical, and diatom data preserved in lake sediments; 2) developing high quality chronologies using improved radiocarbon techniques; 3) examining modern synoptic climatic patterns, general circulation model simulations, and conceptual frameworks to identify possible causes of climatic change; 4) comparing the proxy- and model-based paleoclimatic interpretations to assess the most likely mechanisms behind the observed climatic histories; and 5) exploring possible hemispheric scale linkages associated with Milankovitch and sub- Milankovitch scale event.