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: 1159430
• 负责人: Rosanne D'Arrigo
• 金额: $ 68.7万
• 依托单位: Columbia University
• 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=1159430&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.

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）是否可以调和太平洋衰老变异性（PDV）的不同古代构造？ 3）相对于过去几个世纪，最近时代的PDV（例如1976 - 77年的太平洋变暖，政权转变）是否是独特的？ 4）是否存在稳健和首选的decadal to pdv多年振荡模式？ 5）在北太平洋两侧的热带地区和北部纬度之间的PDV盆地范围内是否有牢固的联系？ 6）内部和外部强迫如何影响北太平洋气候对多个时间尺度的影响？潜在的更广泛的影响包括支持早期研究者以及与俄罗斯同事进行的强大而实质性的科学合作，包括美国和俄罗斯之间的学生。