Inverse Modeling of the Glacial Atlantic: An Expanded Tracer Data Set

大西洋冰川的逆向建模：扩展的示踪剂数据集

• 批准号: 0725965
• 负责人: William Curry
• 金额: $ 25.08万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-01 至 2010-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0725965&HistoricalAwards=false
• 关键词: Inverse; Modeling; Glacial; Atlantic; Expanded

Inverse Modeling of the Glacial Atlantic: An Expanded Tracer Data SetWilliam CurryWoods Hole Oceanographic InstitutionAbstractThe proposed project will perform new stable isotope and elemental (Zn/Ca and Cd/Ca) analyses on benthic foraminifera from a suite of cores in the southwestern quadrant of the North Atlantic and use these data to augment existing data from these proxies. The data will fill in gaps identified by preliminary runs of an inverse modeling technique to more completely constrain the circulation and water column respiration of the Atlantic during the Last Glacial Maximum. The Last Glacial Maximum is one of very few periods in the geological record with adequate data coverage to incorporate tracer data into an inverse model of ocean circulation. Yet the data for the LGM are still incomplete. This project will go far to improve the data base, and also the chances that modelers will be able make robust inferences about the rates of glacial circulation. The proposed project will involve graduate students as well as a Summer Student Fellow (undergraduate).

大西洋冰川的逆向模拟：一个扩展的示踪剂数据集William CurryWoods Hole海洋研究所摘要拟议的项目将进行新的稳定同位素和元素（Zn/Ca和Cd/Ca）的分析，从一套核心在北大西洋西南象限的底栖有孔虫，并使用这些数据来增加现有的数据，从这些代理。这些数据将填补由初步运行的逆向建模技术确定的空白，以更完全地约束末次冰期最大期大西洋的环流和水柱呼吸。末次盛冰期是地质记录中极少数具有足够数据覆盖范围的时期之一，可以将示踪剂数据纳入海洋环流的逆模型。然而，LGM的数据仍然不完整。该项目将大大改善数据库，并有机会使建模人员能够对冰川循环的速率进行可靠的推断。 拟议的项目将涉及研究生以及暑期学生研究员（本科生）。