Analysis and Testing of Proxy-Based Climate Reconstructions

该项目将开发基于代理的大规模地表温度模式，大气环流和过去两千年大陆干旱的重建。 这项研究的基本原理是，对过去两千年来气候的重建和模拟进行定量比较，可以评估自然和人为强迫在多大程度上可以解释观测到的气候变化模式。 该研究建立在研究人员使用气候模式模拟结果测试气候场重建的代理网络设计策略的可喜成果之上，研究解决了对更广泛的科学界具有广泛影响的重要问题，涉及过去气候变率的潜在因素以及对理解未来变化的影响。 这些包括理解地球气候过去变化的空间和时间细节，包括热带太平洋海洋-大气过程（例如厄尔尼诺南方涛动），北方年度模式（NAM）和南方环形模式（SAM）在解释大尺度气候观测模式（例如，地表温度和大气环流）的变化和变化。

This project will develop proxy-based reconstructions of large-scale surface temperature patterns, atmospheric circulation, and continental drought over the past two millennia. The rationale behind the research is that quantitative comparison of reconstructions and simulations of climate over the past two millennia can provide an assessment of the extent to which natural and anthropogenic forcing can explain observed patterns of climatic change. The research builds upon promising results by the researcher in testing proxy network design strategies for climate field reconstruction using climate model simulation results.The research addresses important issues with broad impact to the wider science community regarding the factors underlying past climate variability and the implications for understanding future change. These include an understanding the spatial and temporal details of past changes in the Earth's climate including the role of tropical Pacific ocean-atmosphere processes (e.g. El Nino Southern Oscillation), the Northern Annual Mode (NAM), and Southern Annular Mode (SAM) in explaining observed patterns of large-scale climate (e.g., surface temperature and atmospheric circulation) variability and change over the past two millennia.