Mineral Dust and Radionuclides over the North Atlantic

作为AEROCE第三阶段计划的一部分，该项目涉及矿物粉尘、一套微量元素和两种放射性核素（210Pb和7Be）的研究。研究将集中于主题2（海洋气溶胶与气候）。每天将从四个地点（百慕大、巴巴多斯、伊扎那和兰萨罗特）收集大量气溶胶样本，并将使用仪器中子活化法对它们进行分析。这些分析将产生矿物粉尘和几种化学示踪剂（硒、锑和锌）的数据。我们还建议继续在巴巴多斯进行两种放射性核素（210Pb和7Be）的研究。此外，将大量收集级联撞击物样本，以确定矿物粉尘和几种示踪元素的质量粒度分布特征；这些数据还将用于表征尺寸分离颗粒中的氯化物缺陷，这些材料与为AEROCE研究的各种其他物质之间的关系将用于推断来源并调查负责其运输的大气运输途径。将作出特别努力，将化学数据与为欧空局主题2收集的关于大气物理性质的新闻数据联系起来。

9414262 Arimoto This project involves the study of mineral dust, a suite of trace elements, and two radionuclides (210Pb and 7Be) as part of the AEROCE Phase III Program. The studies will focus on Theme 2 (Marine Aerosols and Climate). Daily bulk aerosol samples will be collected from four sites (Bermuda, Barbados, Izana and Lanzarote), and they will be analyzed using instrumental neutron activation. The analyses will generate data for mineral dust and several chemical tracers (Se, Sb, and Zn). We also propose a continuation of studies of two radionuclides (210Pb and 7Be) at Barbados. In addition, cascade impactor samples will be collected on an intensive basis to characterize the mass particle-size distributions of mineral dust and several tracer elements; these data will also be used to characterize chloride deficits in size separated particles, The relationships among these materials and various other substances studied for AEROCE will be used to infer sources and to investigate the atmosphere transport pathways responsible for their transport. Special efforts will be made to relate the chemical data to news data on physical properties of the atmosphere that will be collected for AEROCE Theme 2.