Modelling the Annual Cycles of Plankton Production in Subpolar Open Seas

亚极地公海正在受到密切关注，因为它们可能在全球二氧化碳(CO2)循环中发挥作用。虽然生物生产的水平和这种生产的命运是调查的中心问题，但控制亚极地公海生物生产水平的机制并不清楚。该项目将重新制定一个生态系统过程模型，将低营养层相互作用的生物模型整合到上层海洋的一维物理模型中，包括浮游植物生产、放牧和营养物质再生。该模型将根据在开阔的亚北极太平洋的海洋站P(北纬50度，西经145度)进行的广泛的物理和生物观测进行开发和首先测试。将评估物理-生物相互作用和营养复杂性的影响。然后，该模型将应用于另外两个亚极地公海，亚北极大西洋和亚南极环绕极地海洋，因为这两个海洋的生物和物理过程有利于从表层去除二氧化碳并将其固定在深海中，因此被认为在全球二氧化碳循环中发挥着重要作用。

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.