Tracers of Past Ocean Circulation
Tracers of Past Ocean Circulation
复制标题
过去海洋环流的示踪剂
DOI：
10.1016/b978-0-08-095975-7.00616-1
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
J. Lynch‐Stieglitz
中科院分区：
文献类型：
--
作者：
J. Lynch‐Stieglitz
关于海洋在过去如何循环的信息有助于理解海洋和大气化学的变化、海洋和大气之间热量和淡水通量的变化以及全球风型的变化。海洋表层水的循环给海洋表面温度留下了印记，也与海洋生产力的模式有着千丝万缕的联系。关于过去海洋环流的许多有价值的信息都是从表面海洋温度和生产力的重建中推断出来的，这些信息将在单独的章节中讨论。这里的重点是用来推断地下水团的流动模式和混合的地球化学示踪剂。几十年前，人们意识到底栖有孔虫贝壳的化学成分(碳同位素和Cd/Ca比值)带有深水块的营养成分(Shackleton，1977；Broecker，1982；Boyle，1981)。这迅速导致人们认识到，在最后一次冰川盛期，大西洋水团的排列与现在不同，并假设冰川排列反映了低营养北大西洋深水(NADW)的贡献减少(Curry和Lohmann，1982；Boyle和Keigwin，1982)。更详细的空间重建表明，营养物质枯竭的水很浅
Information about how the ocean circulated during the past is useful in understanding changes in ocean and atmospheric chemistry, changes in the fluxes of heat and freshwater between the ocean and atmosphere, and changes in global wind patterns. The circulation of surface waters in the ocean leaves an imprint on sea surface temperature, and is also inextricably linked to the patterns of oceanic productivity. Much valuable information about past ocean circulation has been inferred from reconstructions of surface ocean temperature and productivity, which are covered in separate chapters. Here the focus is on the geochemical tracers that are used to infer the flow patterns and mixing of subsurface water masses. Several decades ago it was realized that chemistry of the shells of benthic foraminifera (carbon isotope and Cd/Ca ratios) carried an imprint of the nutrient content of deep-water masses (Shackleton, 1977; Broecker, 1982; Boyle, 1981). This led rapidly to the recognition that the water masses in the Atlantic Ocean were arrayed differently during the last glacial maximum than they are today, and the hypothesis that the glacial arrangement reflected a diminished contribution of low-nutrient North Atlantic deep water (NADW)(Curry and Lohmann, 1982; Boyle and Keigwin, 1982). More detailed spatial reconstructions indicated a shallow nutrient-depleted water
影响因子：
56.9
作者：
J. Lynch‐Stieglitz;J. Adkins;W. Curry;T. Dokken;I. Hall;J. Herguera;J. Hirschi;E. Ivanova;
通讯作者：
J. Lynch‐Stieglitz;J. Adkins;W. Curry;T. Dokken;I. Hall;J. Herguera;J. Hirschi;E. Ivanova;
影响因子：
5.3
作者：
Elderfield, H.;Yu, J.;Nyland, B.
通讯作者：
Nyland, B.
影响因子：
5.3
作者：
Hendry, Katharine R.;Georg, R. Bastian;Halliday, Alex N.
通讯作者：
Halliday, Alex N.