Multidisciplinary Synthesis of Chukchi Sea Ecosystem: Chemical 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个海流计停泊和1988-1991年7次美苏双边巡航的数据评估楚科奇海与生物和物理过程相关的化学过程。将在1988-1991年每年确定流经白令海峡进入北极的营养物的源水浓度，并将结合浮力通量估计来计算营养物通量估计。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。此外，还将确定优势浮游植物群，并将其与各自的营养栖息地联系起来。有机分解（再生）和呼吸过程将使用再生营养物质和溶解氧的系统变化进行检查。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 chemical processes associated with biological and physical 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. The source water concentrations of nutrients flowing through Bering Strait into the Arctic will be determined on an annual basis for the years 1988-1991 and will be combined with buoyancy flux estimates to calculate nutrient flux estimates. Nutrient budgets for the Chukchi Sea shelf will be constructed and compared to subsurface oxygen inventories and primary production estimates. In addition, dominant phytoplankton groups will be identified and related to their respective nutrient habitats. Organic decomposition (regeneration) and respiration processes will be examined using systematic changes in regenerated nutrients and dissolved oxygen. The work supports the goals and research priorities of the Arctic System Science (ARCSS) program of the Global Geosciences Initiative.