Testing the Shelf-Nutrient Hypothesis by Examining the Oceanic Phosphorus Cycle on Glacial Timescales

通过检查冰川时间尺度上的海洋磷循环来检验陆架营养物假说

• 批准号: 0452428
• 负责人: Gabriel Filippelli
• 金额: $ 29.9万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-04-01 至 2011-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0452428&HistoricalAwards=false
• 关键词: Testing; Shelf; Nutrient; Hypothesis; Examining

FilippelliAbtsractThe overall goal of the project is to evaluate Phosphorus accumulation rates at an array of sites using ODP cores and targeting glacial-interglacial (G-I) time scales. These P accumulation rates (PAR) will then be used to construct time-dependent mass balance for the oceans, to evaluate how this has changed on G-I time scales. Subsidiary goals are to contrast PAR to other proxies for bioactive elements. The understanding how the P budget evolves through time is important for insights into how the coupled ocean-atmosphere system.

该项目的总体目标是利用ODP岩心，以冰期-间冰期（G-I）时间尺度为目标，评估一系列地点的磷积累速率。这些P积累率（PAR）将用于构建海洋的随时间变化的质量平衡，以评估其在G-I时间尺度上的变化。辅助目标是将PAR与生物活性元素的其他代理进行比较。了解P收支如何随时间演变对于深入了解耦合的海洋-大气系统是如何演变的很重要。