Trace Element Input and Cycling in the Western South Atlantic (Collaborative Project)

南大西洋西部的微量元素输入和循环（合作项目）

• 批准号: 9523159
• 负责人: Gregory Cutter
• 金额: $ 13.95万
• 依托单位: Old Dominion University Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-11-01 至 1998-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9523159&HistoricalAwards=false
• 关键词: Trace; Element; Input; Cycling; Western

9523159 Cutter The western Atlantic is a good location for examining the effects of multiple inputs, biogeochemical processes, and circulation on the concentrations of trace elements. This study will examine the interaction between inputs, cycling, and transport for Al, Be, Fe, As, Se, Sb, and other trace elements in the western Atlantic. The cruise track provides opportunities to collect samples from nearly all of the major intermediate and deep water masses in the Atlantic, as well as a detailed surface transect across the western boundary currents in the south Atlantic, the equatorial Atlantic/ITCZ (which receives large amounts of Saharan dust), and the Amazon plume, (supplying terrestrial organic ligands, suspended sediments, and colloidal matter). This cruise track will also meet the second research objective, to coordinate and execute the third Intergovernmental Oceanographic Commission Baseline Expedition for Trace Metals and Organic Contaminants in the western South and equatorial Atlantic. The stated goal of these expeditions, as envisioned by the IOC, is to characterize the major water masses of the world's oceans for as many contaminants as possible so that changes due to anthropogenic activity can be identified.

西大西洋是研究多种输入、生物地球化学过程和循环对微量元素浓度影响的良好地点。本研究将考察西大西洋中Al、Be、Fe、As、Se、Sb和其他微量元素的输入、循环和运输之间的相互作用。巡航路线提供了从大西洋几乎所有主要的中层和深水团收集样本的机会，以及横跨南大西洋西部边界流、赤道大西洋/ITCZ（接收大量撒哈拉沙尘）和亚马逊羽流（提供陆地有机配体、悬浮沉积物和胶体物质）的详细表面样带。这条巡航轨道也将满足第二个研究目标，即协调和执行第三次政府间海洋学委员会在南西部和赤道大西洋的微量金属和有机污染物基线考察。正如国际奥委会所设想的那样，这些考察的既定目标是尽可能多地描绘世界海洋主要水体的污染物特征，以便识别人类活动造成的变化。