EAR-PF: High resolution paleoclimate reconstruction of 8200 year event from northern Venezuelan speleothem stable isotope records: possible atmospheric-oceanic linkages

该奖项是根据2009年《美国复苏和再投资法案》(公法111-5)资助的。Julie Retrum被授予NSF地球科学博士后奖学金，在明尼苏达大学开展一项研究和教育计划。Retrum博士将研究8200年事件的时间、结构和机制，这是全新世(大约过去11至12000年)最大的气候变化。研究目标将通过对委内瑞拉洞穴石笋进行高分辨率铀系列辐射测年和碳氧稳定同位素地球化学来实现。这项调查的结果将有助于我们理解快速气候漂移的机制和全球影响，并有助于校准试图预测未来气候的气候模型。此外，雷特勒姆博士将致力于两项教育活动。第一项活动将为本科生海洋学入门实验室开发关于海洋-大气相互作用和海洋在气候变化中的作用的教学单元。第二个活动将解决大学生对气候变化的误解，并试图在课堂环境中有效地应对这些误解。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).Dr. Julie Retrum is awarded an NSF Earth Science Postdoctoral Fellowship to carry out a program of research and education at the University of Minnesota. Dr. Retrum will study the timing, structure, and mechanism of the 8200 year event, the largest climate excursion during the Holocene (approximately the last 11 to 12 thousand years). The research goals will be accomplished by performing high-resolution uranium-series radiometric dating and carbon and oxygen stable isotope geochemistry on Venezuelan cave stalagmites. The results of this investigation will aid in our understanding of the mechanisms and global impacts of rapid climatic excursions and in the calibration of climate models attempting to forecast future climate.In addition, Dr. Retrum will be working on two educational activities. The first activity will develop teaching modules on ocean-atmospheric interactions and the role of oceans in climate change for undergraduate introductory oceanography laboratories. The second activity will address undergraduate climate change misconceptions and make attempts to effectively counter them in a classroom setting.