Collaborative Research: The Role of Deep-Ocean Circulation in Greenhouse Climates: Integrating Numerical Simulations with Proxy Data of Water Mass Composition

合作研究：深海环流在温室气候中的作用：将数值模拟与水团组成的代理数据相结合

• 批准号: 0927946
• 负责人: Matthew Huber
• 金额: $ 5.57万
• 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: 2009-08-15 至 2013-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0927946&HistoricalAwards=false
• 关键词: Collaborative; Research; Role; Deep; Ocean

This research will address long-standing questions related to the formation of deep water masses in warm climate intervals and the role of the resulting circulation in maintaining weak large scale thermal gradients. The researchers aim to expand the current database of early Paleogene Pacific water mass composition reconstructions by using Neodymium (Nd) and Lead (Pb) isotopic records from Deep Sea Drilling Project (DSDP) and Ocean Drilling Program (ODP).The researchers will test three related hypotheses for deep-water circulation during the greenhouse climate of the early Cenozoic, as follows: 1) deep waters were convected in the high latitudes of the Pacific; 2) deep waters did not convect in the Eastern Tethys; and 3) the deep basins of the Atlantic and Pacific were not connected. The broader impacts involve the training and education of two doctoral students and substantive research experience for two undergraduate students. The researchers will contribute to teaching and outreach activities through the development of course materials and learning modules and will incorporate results into existing activities such as the Urbino Summer School in Paleoclimatology. Reconstructions will be disseminated to the community as base maps for future paleoclimatic modeling and proxy studies.

这项研究将解决与温暖的气候间隔中深水质量形成有关的长期问题，以及所得循环在维持弱大型热梯度方面的作用。 研究人员的目的是通过使用深海钻井项目（DSDP）（DSDP）和海洋钻井计划（ODP）的新近山（ND）和同位素记录（ODP）的同位素记录（ODP）扩大当前的古代太平洋水质量组成重建数据库。太平洋的纬度； 2）深水没有在东部的特提斯上对流； 3）大西洋和太平洋的深层盆地没有连接。 更广泛的影响涉及对两名博士生的培训和教育以及两名本科生的实质性研究经验。 研究人员将通过开发课程材料和学习模块来为教学和推广活动做出贡献，并将结果纳入现有活动，例如古气候学的Urbino暑期学校。 重建将被传播到社区，作为未来古气候建模和代理研究的基础图。