The Modulation of Atmospheric CO2 by the Wind-Driven Ocean Circulation

海洋-大气碳系统的0136609Box模式表明，大气CO2对高纬表层海洋性质的扰动很敏感，而对低纬扰动很不敏感。相比之下，海洋一般环流和碳循环模型显示，海洋温暖的表层水域发挥了更大的作用，而对高纬度生物出口效率变化的反应较弱。出于这个原因，麻省理工学院的一位PI建议使用一系列海洋环流和生物地球化学模型来检验这一假设，即这些差异可以归因于通风温跃层和模式水域的作用。此外，PI计划对温跃层、模水和南大洋中间水域及其通风的年际变化进行详细模拟，以研究海气通量和大气二氧化碳的年际和年代际变化。

ABSTRACTOCE-0136609Box models of the ocean-atmosphere carbon system have suggested that atmospheric CO2 is sensitive to perturbation of the high latitude surface ocean properties and quite insensitive to low latitude perturbations. In contrast, ocean general circulation and carbon cycle models show a greater role for the ocean's warm surface waters and a weaker response to changes in high latitude biological export efficiency. For this reason, a PI from Massachusetts Institute of Technology, proposes to test the hypothesis that these discrepancies can be attributed to the role of the ventilated thermocline and mode waters using a hierarchy of numerical ocean circulation and biogeochemistry models. In addition, the PI plans to carry out detailed simulations of the interannual variability of the thermocline, mode waters and the Southern Ocean intermediate waters and their ventilation to examine the interannual and decadal variability of air-sea gas fluxes and atmospheric CO2.