Potential Energy Maxima in the Tropical and Subtropical North Atlantic

Potential Energy Maxima in the Tropical and Subtropical North Atlantic
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北大西洋热带和亚热带的潜在能量最大值

DOI:
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发表时间:
1977
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影响因子:
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通讯作者:
H. Dantzler
H. Dantzler
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文献类型:
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作者:
H. Dantzler

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摘要将一次性深海温度计记录与稳定性信息相结合,以提供与热带和亚热带北大西洋温跃层垂直位移相关的势能估计。势能大小的地理分布提供了一种手段,通过这种手段,可以定量地比较不同垂直密度结构地区的温跃层位移的动力学影响。在北大西洋海盆的东部和西部,沿沿着24 °N存在一个广泛的纬向势能极小值。从这个最小位能水平开始,向北的幅度显着增加,向南的幅度较小,最高值出现在副热带环流的边界环流相关区域。更多的地理限制的最大值被发现沿着两侧的中大西洋海脊和附近的安的列斯群岛弧,表明地形的影响可能是重要的,除了什么似乎主要是B.
Abstract Expendable bathythermograph records are combined with stability information to provide estimates of the potential energy associated with vertical displacements in the tropical and subtropical North Atlantic thermocline. The geographic distribution of potential energy magnitudes provides a means by which the dynamics implications of thermocline displacements in areas of differing vertical density structures can quantitatively be compared. A broad zonal minimum in potential energy exists along 24–°N in the eastern and western North Atlantic basins. From this minimum potential energy levels increase significantly in magnitude to the north and to a lesser extent to the south with highest values indicated for the boundary-circulation-associated regions of the subtropical gyre. More geographically restricted maxima are found along the flanks of the Mid-Atlantic Ridge and near the Antilles Islands Arc, indicating that topographic influences may be important in addition to what appears predominantly to b...