A Unique Paleomeasure of Turbulent Boundary Layer Heat Content: Florisphaera Profunda

该项目的目标是测量古海洋学 湍流边界层中热含量的变化 热带和亚热带海洋。一个新的衡量标准， 温跃层，深度是 球石藻属种Florisphaera profunda。这种海藻 仅限于较低的真光层，高营养， 温度10C。这项研究将定义和测试这一点 measure.目标包括：（1）改善生物生态学定义， F.位于热带大西洋的深海(2)文件中的更改 近20万年来赤道大西洋营养线（3） 确定250万年来全球气候的变化 改变了营养层对岁差强迫的响应， ODP站点662A中310万至190万之间的F.profunda 年(4)描绘极向的位置和表情 北大西洋副热带环流的边界 二十万年

The objective of the project is to measure the paleoceanographic variability of heat content in the Turbulent Boundary Layer of the tropical and subtropical oceans. A new measure of the nutricline, and by proxy, thermocline, depth is the coccolithophorid species Florisphaera profunda. This marine algae is restricted to the lower euphotic zone, high nutrients, and temperatures 10C. The research will define and test this measure. The goals include (1) Improve bioecologic definition of F. profunda in the tropical Atlantic. (2) Document changes in the equatorial Atlantic nutricline for the last 200,000 years (3) Determine if the change in global climate at 2.5 Million years altered the nutricline response to precessional forcing using F.profunda in ODP site 662A for the interval 3.1 to 1.9 Million years. (4) Delineate the position and expression of the poleward boundary of the North Atlantic subtropical gyre for the last 200,000 years.