Collaborative Research: Cosmogenic Radionuclides in the Deep WAIS Divide Core

合作研究：WAIS 鸿沟核心深处的宇宙放射性核素

• 批准号: 0839042
• 负责人: Marc Caffee
• 金额: $ 52.69万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2013-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0839042&HistoricalAwards=false
• 关键词: Collaborative; Research; Cosmogenic; Radionuclides; Deep

Caffee/0839042 This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).This award supports a project to measure the concentration of the cosmogenic radionuclide, Beryllium-10 in the deep WAIS divide ice core. Since cosmogenic radionuclides are one of the key parameters used for absolute dating of the ice core and deriving paleoaccumulation rates, it is essential that these measurements be made quickly and efficiently, and that the information is disseminated as soon as the results are available. The intellectual merit of the project is that it will allow a comparison to be made between the core from WAIS Divide and previously measured cosmogenic radionuclide records from Arctic ice cores, particularly GISP2 and GRIP This project will enable scientists to delineate those processes acting at a local level from those that produce global effects and will provide independent chronological markers to aid in the reconstruction of the WAIS Divide ice core chronology. The cosmogenic 10Be profile can also be used to investigate the possible role of solar activity on climate. The direct comparison of radionuclide concentrations with paleoclimate records in ice cores from different sites will provide more insight in the timing and magnitude of solar forcing of climate. The broader impacts of this project include: (i) the formation of a multi-disciplinary team of collaborators for the interpretation of future analyses of cosmogenic radionuclide data from the WAIS divide and other ice cores. (ii) the involvement and training of graduate and undergraduate students in the large scale project of climate research through detailed studies of ice samples. (iii) the opportunity to highlight to a wide range of lab visitors and students from local K-12 schools the importance of ice core and climate change studies.This award does not involve field work in Antarctica.

Caffee/0839042该奖项是根据2009年的《美国复苏与再投资法》（公法111-5）资助的。该奖项支持一个项目，以衡量衡量宇宙源性放射性核素的浓度，《深处Wais Divide Ice Core》中的鸟类基质核素10。 由于宇宙基础放射性核素是用于绝对约会并得出古蓄能率的关键参数之一，因此必须快速有效地进行这些测量，并且在结果可用后立即传播信息。 该项目的智力优点在于，它将允许对WAIS鸿沟的核心与以前测量的宇宙基因源性放射性核素的记录进行比较，尤其是GISP2，尤其是GISP2和掌握该项目，这将使科学家能够将这些过程描述为在本地级别的效果，从而产生全球效果，并将为独立的年代表构建提供了质量的质量，以帮助冰镇构建冰块，以帮助冰镇结构。 宇宙基因10BE轮廓也可用于研究太阳活动在气候中的可能作用。放射性核素浓度与来自不同地点的冰芯中古气候记录的直接比较将为气候的太阳强迫的时机和幅度提供更多的见解。 该项目的更广泛影响包括：（i）形成了一个多学科合作者团队，以解释WAIS Divide和其他冰芯的宇宙基因核素数据的未来分析。 （ii）通过详细的冰样研究，研究生和本科生参与和培训气候研究大规模项目。 （iii）有机会向众多实验室访客和当地K-12学校的学生强调冰核和气候变化研究的重要性。该奖项不涉及南极洲的实地工作。