Tracing Biogeochemical Fluxes and Water Mass Exchanges on the Eurasian Shelves

提供了资金，以便利用多种示踪剂办法和现有的国际和多学科合作，确定几次破冰船航行期间欧亚大陆架上水团和有机物的分布情况。来自最近测试的现场荧光探头的数据将得到水文特征、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)的测定的补充。对这些测量结果的分析将被用来调查两个主要的科学目标：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；2.确定北冰洋和欧亚大陆架之间的物理交换在该区域的生物和生物地球化学通量中的作用。

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.