Collaborative Research: Establishment of a Climate Type-Section for the Tropical Atlantic from Cariaco Basin Sediments

PIs将使用在Cariaco盆地收集的两个新活塞岩心的复合材料，生成最后一次冰期-间冰期旋回气候变化的高分辨率多代理低纬度沉积型剖面。其目标是创建一个与GISPS和Vostok等高纬度冰芯对应的热带海洋冰芯。该方法遵循了NRC的建议，即海洋群落应该在关键地点制作高质量的记录。卡里亚科盆地是一个关键的位置，它很好地代表了过去ITCZ的变化。来自四家机构的pi将合作创建热带地区古气候变化的类型剖面，并制作一套通用的古海洋学分析，特别是无机指标方面的分析。更广泛的影响：该地区的高分辨率记录将作为广泛的古海洋学家和古气候学家社区的海洋类型位置，从而满足一项重要的需求，一项目前缺乏的能力。

0602392Peterson/Thunell/Lea/BlackThe PIs will generate a high-resolution multi-proxy low-latitude sedimentary type section of climatic variability over the last glacial-interglacial cycle, using a composite of two new piston cores collected in Cariaco Basin. The objective is to create a tropical marine counterpart to high latitude ice cores such as GISPS and Vostok. The approach follows the recommendations of NRC that the marine community should produce high-quality records at key locations. Cariaco Basin is a key location, where the past changes in ITCZ are well represented. PIs from four institutions will work together to create the type-section of paleoclimate variability in the tropics and produce a suite of common paleoceanographic analyses, particularly in terms of inorganic indicators.Broader impacts: The high resolution record of this area will serve as the marine type locality for a broad community of paleoceanographers and paleoclimatologists and thus serve an important need, a capability that is currently lacking.