A Multidisciplinary Synthesis of the Chukchi Sea Ecosystem: Physical Processes

这一合作努力将利用几年来从楚科奇海收集的一套广泛而独特的数据。来自三个机构的研究人员将通过一系列数据和模拟分析，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，以确定其现在和未来的营养状况。将利用1990-1991年一系列13个海流计系泊和1988-1991年7次美苏双边巡航的数据评估楚科奇海与生物和化学过程相关的物理过程。将从一年的时间序列数据中分析浮力场和流场以及风场；研究物理过程的作用，特别强调大陆架环流在一年中的变化，风在强迫大陆架环流中的作用，以及热、盐和其他溶解物质通过系统的可变通量。营养物的水源水浓度将与浮力通量估计相结合，以计算营养物通量估计。然后将建立楚科奇海陆架的营养预算，并将其与地下氧库存和初步产量估算进行比较。这项工作支持全球地球科学倡议的北极系统科学（ARCSS）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.