P2C2: Reconstruction and Dynamics of Interhemispheric Hydroclimate Variability between the Americas
P2C2:美洲之间半球间水文气候变化的重建和动态
基本信息
- 批准号:1602581
- 负责人:
- 金额:$ 62.61万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2016
- 资助国家:美国
- 起止时间:2016-06-15 至 2020-05-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The general goal of this project is to develop a pan-Pacific drought atlas using tree-ring records. This research specifically aims to explore: 1) drought occurrences and dynamics across the Americas; 2) inter-hemispheric regimes of decadal-to-centennial hydroclimate variability; 3) large-scale footprints and temporal properties of extreme events (including responses to volcanism, solar forcing and internal variability); and 4) past hydroclimatic drought events in reference to their underlying dynamics thereby offering insight into some of the most disruptive climatic events of the last millennium. Hydroclimate patterns will be analyzed for their associated dynamics and diagnosed for their connection to large-scale modes of variability and/or forced patterns of change. Multidecadal hydroclimate anomalies (e.g. megadroughts or pluvials) will be evaluated to determine if they arise from inter-hemispheric-scale climate regimes with coherence across continents or as more local continental-scale phenomena. Similarly, extremes in individual years will be assessed for their dynamic origins and probability of occurrence.Why this research? Characterizing and understanding large-scale hydroclimate variability during the last millennium is a critical means of evaluating and improving projections of future hydroclimate change. Why this research now? Two recent developments make the time ripe for significant advances in this area of research. First, fully pan-Pacific reconstructions of last-millennium hydroclimate variability are now within reach. Second, the large and growing ensemble of last-millennium simulations with fully-coupled climate models make dynamic investigations of past hydroclimate change possible thereby providing potentially improved assessments of projected future risks and impacts.The project will help improve the understanding of extreme climatic events climate and includes a substantive leveraging of international collaboration with South American colleagues in Argentina and Chile, creation of a user-friendly drought atlas, and public outreach on science and education.
该项目的总体目标是利用树木年轮记录编制泛太平洋干旱地图集。 这项研究的具体目的是探讨:1)干旱发生和动态在美洲; 2)跨半球制度的十年至百年水文气候变化; 3)大规模的足迹和时间特性的极端事件(包括对火山活动、太阳强迫和内部变化的反应); 4)过去水文气候干旱事件的基本动力,从而提供了对上个千年一些最具破坏性的气候事件的洞察力。水文气候模式将分析其相关的动力学和诊断其连接到大规模的可变性模式和/或被迫的变化模式。将对数十年水文气候异常(如特大干旱或多雨)进行评估,以确定它们是来自各大洲之间具有一致性的半球间气候制度,还是作为更局部的大陆尺度现象。同样地,个别年份的极端事件也将被评估其动态起源和发生概率。为什么要进行这项研究?描述和了解上个千年的大尺度水文气候变化是评估和改进未来水文气候变化预测的重要手段。为什么现在进行这项研究?最近的两项发展使得在这一研究领域取得重大进展的时机已经成熟。 首先,全面重建上个千年水文气候变异性的泛太平洋工作现在已经触手可及。第二,上个千年的大量和不断增长的模拟与完全耦合的气候模式的集合使得对过去水文气候变化的动态调查成为可能,从而有可能改进对预测的未来风险和影响的评估,该项目将有助于提高对极端气候事件气候的认识,并包括实质性地利用与阿根廷和智利的南美同事的国际合作,制作方便用户的干旱地图集,并开展科学和教育方面的公共宣传。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Jason Smerdon其他文献
Jason Smerdon的其他文献
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{{ truncateString('Jason Smerdon', 18)}}的其他基金
Collaborative Research: Diagnosing Global Climatic Responses to Large Volcanic Eruptions in Climate Reconstructions and Model Simulations
合作研究:在气候重建和模型模拟中诊断全球气候对大型火山喷发的响应
- 批准号:
2303352 - 财政年份:2023
- 资助金额:
$ 62.61万 - 项目类别:
Standard Grant
Decadal Regime Shifts in the Pacific Ocean: Mechanisms, Hydroclimatic Imprints, and Predictability
太平洋的年代际变化:机制、水文气候印记和可预测性
- 批准号:
2101214 - 财政年份:2021
- 资助金额:
$ 62.61万 - 项目类别:
Standard Grant
Collaborative Research: P2C2--Derivation of Ensemble and Joint-Variable Climate Field Reconstructions of the Common Era Using New Random Field Methods
合作研究:P2C2--利用新的随机场方法进行集合推导和共同时代的联合变量气候场重建
- 批准号:
1602920 - 财政年份:2016
- 资助金额:
$ 62.61万 - 项目类别:
Standard Grant
Collaborative Research: P2C2--Locally-Constrained Climate Field Reconstructions of the Last Millennium: Methods and Application
合作研究:P2C2--上个千年的局部约束气候场重建:方法与应用
- 批准号:
0902436 - 财政年份:2009
- 资助金额:
$ 62.61万 - 项目类别:
Continuing Grant
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