Modelling the Annual Cycles of Plankton Production in Subpolar Open Seas

对近极地公海浮游生物生产的年度周期进行建模

• 批准号: 9101909
• 负责人: Bruce Frost
• 金额: $ 6.66万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-10-01 至 1993-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9101909&HistoricalAwards=false
• 关键词: Modelling; Annual; Cycles; Plankton; Production

The subpolar open seas are under scrutiny for the role they may play in the global carbon dioxide (CO2) cycle. While the level of biological production and the fate of that production are central issues in the inquiry, the mechanisms controlling even the level of biological production in the subpolar open seas are not understood. This project will reformulate an ecosystem process model integrating a biological model of lower trophic level interactions, including phytoplankton production, grazing, and nutrient regeneration, into a one-dimensional physical model of the upper ocean. The model will be developed and first tested against the extensive physical and biological observations from Ocean Station P (50 Degrees N 145 Degrees W) in the open subarctic Pacific Ocean. Effects of physical-biological interactions and trophic complexity will be assessed. The model will then be applied to the other two subpolar open seas, the subarctic Atlantic and the subantarctic circumpolar ocean which, because of biological and physical processes favorable to removal of CO2 from the surface layer and its sequestration in the deep ocean, are thought to play a major role in the global CO2 cycle.

对于它们在全球二氧化碳（CO2）周期中可能起的作用，次极开海正在受到审查。尽管生物生产的水平和该生产的命运是询问中的核心问题，但控制次级开放海中生物产生水平的机制尚不清楚。 该项目将重新将生态系统过程模型整合到较低营养水平相互作用的生物学模型，包括浮游植物的生产，放牧和营养再生，并将其纳入上海洋的一维物理模型。 该模型将在开放式亚亚亚亚基大洋中开发并首先针对来自海洋站P（50摄氏度n 145摄氏度）的广泛物理和生物学观察结果进行测试。 将评估物理生物相互作用和营养复杂性的影响。 然后，该模型将应用于其他两个亚极开海，亚北极大西洋和抗抗极性海洋，由于生物学和物理过程有利于从表面层中去除CO2及其在深海中的隔离中，因此被认为在全球CO2周期中起着重要作用。