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

合作研究：东北亚晚第四纪气候：时空变化

• 批准号: 9810177
• 负责人: Patricia Anderson
• 金额: $ 33.78万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-10-01 至 2002-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9810177&HistoricalAwards=false
• 关键词: Collaborative; Research; Late; Quaternary; Climate

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.

摘要 ATM-9810177 Anderson, Patricia M. 华盛顿大学 标题：东北亚晚第四纪气候：时间和空间变化 该奖项支持一个项目，旨在通过记录东北亚过去 18,000 个放射性碳年的气候空间和时间变化，描述可能的千年和百年规模机制，以增进对东亚晚第四纪气候系统的了解。 观察古气候变化，并将亚洲东北部的结果与其他地区（例如东南亚、北美西北部、北大西洋）进行比较，以获得区域气候系统相互关系的更全面的看法。 总体研究目标将通过以下方式实现：1）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来重建过去的气候； 2）利用改进的放射性碳技术开发高质量的年表； 3）检查现代天气气候模式、大气环流模型模拟和概念框架，以确定气候变化的可能原因； 4）比较基于代理和模型的古气候解释，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可能的半球尺度联系。