Oceanic fluxes of mass, heat, and freshwater : a global estimate and perspective
Oceanic fluxes of mass, heat, and freshwater : a global estimate and perspective
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海洋质量、热量和淡水通量：全球估计和前景
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
A. Macdonald
中科院分区：
文献类型：
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作者：
A. Macdonald
摘要：使用大规模箱模型将来自15个全球分布的现代高分辨率水文海洋横断面的数据结合起来进行逆计算。这些模型提供了全球赤道热量和淡水预算的估计数，并用于研究全球环流的敏感性，包括流域间和流域内的汇率，各种外部限制提供的估计埃克曼，边界电流和通流运输。一个解决方案是一致的模型物理和全球数据集，尽管二十五年的时间跨度和缺乏季节性的一致性之间的数据。模型所建议的全球环流的总体模式与以前发表的地方研究和区域评论中提出的模式相似。然而，存在显着的质和量的差异。这些差异是由于模型定义和数据集的全球性质。
Abstract : Data from fifteen globally distributed, modern, high resolution, hydrographic oceanic transects are combined in an inverse calculation using large scale box models. The models provide estimates of the global meridional heat and freshwater budgets and are used to examine the sensitivity of the global circulation, both inter and intra-basin exchange rates, to a variety of external constraints provided by estimates of Ekman, boundary current and throughflow transports. A solution is found which is consistent with both the model physics and the global data set, despite a twenty five year time span and a lack of seasonal consistency among the data. The overall pattern of the global circulation suggested by the models is similar to that proposed in previously published local studies and regional reviews. However, significant qualitative and quantitative differences exist. These differences are due both to the model definition and to the global nature of the data set.