RPGW: The Feasibility of Reconstructing Upper Ocean Flows from Density Gradients during the Last Gacial Maximum

RPGW：从最后一次Gacial最大值期间的密度梯度重建上层洋流的可行性

• 批准号: 9712147
• 负责人: Jean Lynch-Stieglitz
• 金额: $ 1.8万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-08-15 至 1999-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9712147&HistoricalAwards=false
• 关键词: RPGW; Feasibility; Reconstructing; Upper; Ocean

This Planning Grant will explore the feasibility of calculating upper ocean transports from paired vertical profiles of oxygen isotope ratios in benthic foraminifera. Depth transects of cores from the east and west sides of the Florida Straits, will be sampled for modern through last glacial periods, density profiles constructed from the foraminiferal oxygen isotope ratios, and estimates of geostrophic transport derived. Special attention will be given to estimating the magnitude of error introduced by various assumptions.

本规划拨款将探讨从底栖有孔虫的成对氧同位素比值垂直剖面计算上层海洋输送的可行性。将对佛罗里达海峡东、西两侧的岩心深度样带进行现代到末次冰期的采样，根据有孔虫氧同位素比率构建密度剖面，并对地转运输进行估计。将特别注意估计由各种假设引起的误差的大小。