Roosevelt Island Climate Evolution Project (RICE): US Deep Ice Core Glaciochemistry Contribution (2011- 2014)

该奖项支持新西兰研究小组在罗斯福岛钻探的深层冰芯分析项目。目标是以非常高的分辨率处理冰芯，以便(a)更好地理解北极/南极气候突变的相位序列，甚至在单个风暴事件的水平上；(b)厘定西风带及阿蒙森海低压的变化对过去/现在/未来气候变化的影响；(c)确定该地区海冰范围的变化情况；(d)在冰期/间冰期旋回期间，比较南极洲西部气候对其他地区的响应；(e)确定在从罗斯冰原到罗斯冰架的过渡过程中，罗斯海海湾的气候是如何变化的。RICE深冰芯项目的智力价值在于，它有望提供罗斯海海湾地区30千米长（可能150千米长）的极高分辨率的气候变化视图，并提供必要的数据，以测试和理解由于南极研究科学委员会文件中最近提出的南极和南大洋气候变化综合而出现的关键问题。南极气候变化与环境（ACCE, 2009）。冰芯的处理和分析将由缅因大学和来自新西兰的合作者共同进行。所有化学分析的共同登记采样将由新西兰冰芯设施的联合实验室努力完成，使用缅因大学开发的连续熔融系统。RICE的深冰芯记录将提供必要的信息，以揭示气候变化的千年基础的重要性，并根据目前人类对南极洲和南大洋的巨大影响了解已观测到的和预估的气候变化。该项目的更广泛影响包括两名CCI研究生将通过该项目获得资助，并将参与实地研究、岩心取样、样品处理、分析和数值分析、数据解释、手稿写作以及在国内和国际会议上展示结果的各个方面。在这个项目和相关工作中发展的数据和想法将在缅因大学的几门课程中使用。创新的网络基础设施将被纳入这项工作，突破性的分析技术和数据访问/存储工具将被使用。

1042883/MayewskiThis award supports a project to analyze a deep ice core which will be drilled by a New Zealand research team at Roosevelt Island. The objectives are to process the ice core at very high resolution to (a) better understand phasing sequences in Arctic/Antarctic abrupt climate change, even at the level of individual storm events; (b) determine the impact of changes in the Westerlies and the Amundsen Sea Low on past/present/future climate change; (c) determine how sea ice extent has varied in the area; (d) compare the response of West Antarctica climate to other regions during glacial/interglacial cycles; and (e) determine how climate of the Ross Sea Embayment changed during the transition from Ross Ice Sheet to Ross Ice Shelf. The intellectual merit of the RICE deep ice core project is that it is expected to provide a 30kyr long (and possibly 150kyr long) extremely high-resolution view of climate change in the Ross Sea Embayment Region and data essential to test and understand critical questions that have emerged as a consequence of the recent synthesis of Antarctic and Southern Ocean climate change presented in the Scientific Commission for Antarctic Research document: Antarctic Climate Change and the Environment (ACCE, 2009). Ice core processing and analysis will be performed jointly by University of Maine and the collaborators from New Zealand. Co-registered sampling for all chemical analyses will be accomplished by a joint laboratory effort at the IGNS NZ ice core facility using a continuous melter system developed by the University of Maine. The RICE deep ice core record will provide information necessary in unraveling the significance of multi-millennial underpinning for climate change and in the understanding of observed and projected climate change in light of current dramatic human impact on Antarctica and the Southern Ocean. The broader impacts of the project include the fact that two CCI graduate students will be funded through the project, and will be involved in all aspects of field research, core sampling, sample processing, analytical and numerical analyses, data interpretation, writing of manuscripts, and presentation of results at national and international conferences. Data and ideas developed in this project and associated work will be used in several courses taught at the University of Maine. Innovative cyberinfrastructure will be incorporated into this work and ground breaking analytical technologies, and data access/storage tools will be used.