A Multidisciplinary Synthesis of the Chukchi Sea Ecosystem: Physical Processes

这项合作工作将利用几年来从楚科奇海收集的广泛和独特的数据集。来自三个机构的研究人员将研究楚科奇海生态系统的物理、化学和生物过程的相互作用，以通过一系列数据和模拟分析确定其现在甚至未来的营养状况。与楚科奇海生物和化学过程有关的物理过程将使用1990-1991年期间13个海流计系泊和1988-1991年期间7次美苏双边巡航的数据进行评估。将开展工作，从一年的时间序列数据与风场一起分析浮力和海流场；检查物理过程的作用，特别强调陆架环流在一年中的可变性，风在强迫陆架环流中的作用，以及通过该系统的热、盐和其他溶解物质的可变通量。将源水营养盐浓度与浮力通量估计值相结合，计算出营养盐通量估计值。然后，将编制楚科奇海大陆架的营养预算，并将其与地下氧气库存和初级产量估计数进行比较。这项工作支持全球地球科学倡议的北极系统科学(ARCS)计划的目标和研究重点。

This collaborative effort will make use of an extensive and unique data set collected over several years from the Chukchi Sea. Investigators from three institutions will study the interactions of physical, chemical, and biological processes of the Chukchi Sea ecosystem to define its present and perhaps future trophic status through a series of data and simulation analyses. The physical processes associated with biological and chemical processes in the Chukchi Sea will be assessed using data from a series of 13 current meter moorings in 1990-1991 and seven bilateral U.S.-U.S.S.R. cruises during 1988-1991. Work will be undertaken to analyze the buoyancy and current fields from the year-long time series data together with the wind field; to examine the role of physical processes, with a particular emphasis on the variability of the shelf circulation over the year, the role of the wind in forcing the shelf circulation, and the variable fluxes of heat, salt, and other dissolved substances through the system. The source water concentrations of nutrients will be combined with buoyancy flux estimates to calculate nutrient flux estimates. Nutrient budgets for the Chukchi Sea shelf will then be constructed and compared to subsurface oxygen inventories and primary production estimates. The work supports the goals and research priorities of the Arctic System Science (ARCSS) program of the Global Geosciences Initiative.