The Effect of Mesoscale Physics on the Upper Ocean Carbon Cycle

主题：中尺度物理学对上层海洋的影响 碳循环 在实地研究和全球规模的模型中， 了解溶解的营养物质是如何供应的， 观察到的差异之间的涡流扩散运输和 生产需求：（1）营养物质的运输，直到 最近“看不见”的溶解有机物池;（2） 无机营养盐通过间歇混合或营养盐的输送 注射根据最近的工作， 与锋面和涡旋相关的上层海洋可能会驱动一个 营养盐垂直输送。 全球尺度环流 养分循环模型无法重现观测到的养分 循环在上层海洋没有求助于（1）运输 以溶解有机营养物形式存在的营养物，或（2） 海洋无机营养物浓度增加 表面，这可能允许不切实际的水平平流 运输GCM结果可能因以下因素的分辨率不足而产生偏差： 垂直营养盐的中尺度过程 在真实的海洋中运输。 为了验证这一假设， 动力学模型将运行的物理变量从 Semtner和Chervin（1992）的涡动分解环流模型。

Subject: The Effect of Mesoscale Physics on the Upper Ocean Carbon Cycle In field studies and in global scale models, it has been difficult to understand how dissolved nutrients are supplied to support the observed discrepancy between eddy diffusive transport and production demand: (1) the transport of nutrients in the until recently "invisible" pool of dissolved organic matter; (2) the transport of inorganic nutrients by episodic mixing or nutrient injection. According to recent work, mesoscale upwelling in the upper ocean associated with fronts and eddies may drive a significant vertical nutrient transport. Global scale circulation nutrient cycle models are unable to reproduce the observed nutrient cycle in the upper ocean without recourse to either (1) transport of nutrients in the form of dissolved organic nutrients, or (2) incresased concentrations of inorganic nutrients at the sea surface, which allows presumably unrealistic horizontal advective transport. GCM results may be biased by inadequate resolution of the mesoscale processes that are responsible for vertical nutrient transport in the real ocean. To test this hypothesis, a nutrient dynamics model will be run with the physical variables from the eddy-resolving circulation model of Semtner and Chervin (1992).