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

海洋-大气碳系统的箱型模型表明，大气CO2对高纬度表层海洋性质的扰动很敏感，而对低纬度扰动则很不敏感。 相比之下，海洋环流和碳循环模式显示，海洋温暖的表面沃茨的作用更大，对高纬度生物输出效率变化的反应更弱。 为此，来自马萨诸塞州理工学院的PI建议使用数值海洋环流和海洋地球化学模型的层次结构来检验这些差异可以归因于通风温跃层和模态沃茨的作用的假设。 此外，PI计划对温跃层、模态沃茨和南大洋中层沃茨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CO2的年际和十年变化。

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.