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

海洋-大气碳系统的box模式表明，大气CO2对高纬度海洋表面特性的扰动敏感，而对低纬度扰动不敏感。相比之下，海洋环流和碳循环模式对海洋暖地表水的作用更大，对高纬度生物输出效率变化的响应较弱。出于这个原因，麻省理工学院的一名PI建议，使用数值海洋环流和生物地球化学模型的层次结构来测试这种假设，即这些差异可以归因于通风的温跃层和模式水的作用。此外，该计划还计划对温跃层、模态水和南大洋中间水及其通气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.