Tracing Biogeochemical Fluxes and Water Mass Exchanges on the Eurasian Shelves

追踪欧亚陆架上的生物地球化学通量和水质量交换

• 批准号: 0425582
• 负责人: Rainer Amon
• 金额: --
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-15 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0425582&HistoricalAwards=false
• 关键词: Tracing; Biogeochemical; Fluxes; Water; Mass

Funds are provided to characterize the distribution of water masses and organic matter on the Eurasian shelf during several ice-breaker cruises by using a multi-tracer approach and existing international and multidisciplinary collaborations. Data from a recently tested in situ fluorescence probe will be complemented by the determination of hydrographic characteristics, organic tracers (lignin phenols, neutral sugars, stable carbon isotopes), and stable oxygen isotopes (H218O). The analysis of this combination of measurements will be used to investigate two main scientific objectives:1. determination of the role of sea ice formation in the exchange of water masses, in particular the formation of Arctic halocline waters on the Eurasian shelf, and2. determination of the role of physical exchanges between the Arctic Ocean and the Eurasian shelf in the biology and biogeochemical fluxes of the region.

通过使用多示踪剂方法和现有的国际和多学科合作，提供资金来描述几次破冰船航行期间欧亚大陆架上水团和有机物的分布特征。 最近测试的原位荧光探针的数据将通过水文学特征、有机示踪剂（木质素酚、中性糖、稳定碳同位素）和稳定氧同位素（H218O）的测定得到补充。 对这种测量组合的分析将用于研究两个主要科学目标：1。确定海冰形成在水团交换中的作用，特别是欧亚大陆架上北极盐跃层水域的形成，以及2。确定北冰洋和欧亚大陆架之间的物理交换对该地区的生物和生物地球化学通量的作用。