Collaborative Research: P2C2--Tree-Ring Reconstructions of Western North Pacific Climate Dynamics

合作研究：P2C2--西北太平洋气候动力学树轮重建

• 批准号: 1202218
• 负责人: Gregory Wiles
• 金额: $ 13.44万
• 依托单位: College of Wooster
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-06-15 至 2016-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1202218&HistoricalAwards=false
• 关键词: Collaborative; Research; P2C2; Tree; Ring

This research, generally, seeks to provide a more integrative understanding of the spatiotemporal variability of trans-North Pacific climate through the use of new and existing data sets of tree rings.Specifically, the researchers seek to answer the following scientific questions: 1) How has the North Pacific atmosphere-ocean circulation varied over the past several centuries to millennium during such events as the Medieval Climate Anomaly and the Little Ice Age; 2) Can different paleoreconstructions of Pacific Decadal Variability (PDV) be reconciled? 3) Is the PDV during the recent era (e.g. 1976-77 Pacific warming, regime shift) unique relative to past centuries? 4) Do robust and preferred decadal to multidecadal oscillatory modes of PDV exist? 5) Is the PDV basin-wide with robust linkages between the tropics and higher northern latitudes on both sides of the North Pacific? and 6) How have internal and external forcings impacted past North Pacific climate on multiple timescales?The potential broader impacts include supporting an early investigator and strong and substantive scientific collaboration with Russian colleagues including foreign exchange of students between the U.S. and Russia.

这项研究，一般来说，旨在通过使用新的和现有的树木年轮数据集，提供对跨北太平洋气候时空变化的更全面的理解。具体来说，研究人员试图回答以下科学问题：1）北太平洋的大气层是如何--在过去的几个世纪到几千年中，海洋环流在中世纪气候异常和小冰期等事件中发生了变化; 2）太平洋年代际变率（PDV）的不同古重建能被调和吗？3)相对于过去的几个世纪，最近时期（例如1976-77年太平洋变暖，政权转移）的PDV是独特的吗？4)PDV是否存在强有力的和优选的十年到多十年振荡模式？5)PDV流域是否在北太平洋两侧的热带和北方高纬度地区之间具有强大的联系？以及6）内部和外部强迫如何在多个时间尺度上影响过去的北太平洋气候？潜在的更广泛的影响包括支持早期研究人员和与俄罗斯同事的强有力的实质性科学合作，包括美国和俄罗斯之间的学生交流。