Collaborative Proposal: 2000+ Year Detailed, Calibrated Climate Reconstruction from a South Pole Ice Core Set in an Antarctic-Global Scale Context

该奖项支持一个项目，该项目旨在研究南极现有的机会冰芯（SPRESO冰芯），以开发2000多年的气候记录。SPRESO冰芯将利用连续的、共同登记的测量（n=45）：主要离子、微量元素和稳定同位素系列，加上选定的微粒大小和组成部分，对过去的气候（大气环流、温度、降水率和大气化学）进行年定年、次年分辨重建。该项目的知识价值在于，尽管科学界对这一关键时期的兴趣日益浓厚，但在南极洲，这种质量的记录很少。在这一时期内，人们可以了解现代气候。这次冰芯调查的科学影响是，它将提供对气候变化的深入了解；在人类活动背景下评估现代气候变率的基线；对未来气候变化的预测也有贡献。这项工作的更广泛的影响是，拟议的研究解决了有关南极洲在过去、现在和未来全球变化中的作用的重要问题。研究结果将通过公开讲座、媒体露面和我们研究所广泛的外展活动转化为可公开获取的信息。我们的冰芯活动是K-12课程和大学课程的主要基础，也是几个实地和实验室研究生论文和本科生项目的基础。该项目将资助一名博士生三年，并提供本科生工资。气候变化研究所在性别和种族多样化的学生和工作人员参与研究方面有着悠久的历史。

This award supports a project to examine an existing ice core of opportunity from South Pole (SPRESO core) to develop a 2000+ year long climate record. SPRESO ice core will be an annually dated, sub-annually-resolved reconstruction of past climate (atmospheric circulation, temperature, precipitation rate, and atmospheric chemistry) utilizing continuous, co-registered measurements (n=45) of: major ions, trace elements, and stable isotope series, plus selected sections for microparticle size and composition. The intellectual merit of this project relates to the fact that few 2000+ year records of this quality exist in Antarctica despite increasing scientific interest in this critical time period as the framework within which to understand modern climate. The scientific impact of this ice core investigation are that it will provide an in-depth understanding of climate variability; a baseline for assessing modern climate variability in the context of human activity; and a contribution to the prediction of future climate variability. The broader impact of this work is that the proposed research addresses important questions concerning the role of Antarctica in past, present, and future global change. Results will be translated into publicly accessible information through public lectures, media appearances, and an extensive outreach activity housed in our Institute. Our ice core activities provide a major basis for curriculum in K-12 and University plus a basis for several field and laboratory based graduate theses and undergraduate student projects. The project will support one PhD student for 3 years and undergraduate salaries. The Climate Change Institute has a long history of gender and ethnically diverse student and staff involvement in research.