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Responses of the stratified flows to their driving conditions-A field study

机译：分层流对其行驶条件的响应-现场研究

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摘要

The Bosphorus is oceanographically very complicated two-layer stratified strait where denser water from the Marmara Sea flows towards North under the lighter water which is frequently flowing from the Black Sea towards South. The water level difference between both ends of the Bosphorus varies seasonally within the range of -0.2 and 0.6 m. The seasonal variability depends mainly on the water level changes in the adjacent basins related to the hydrological cycle, short-term changes in the atmospheric pressure and the wind characteristics. These variations together with the depth and alignment of the cross section along the strait dominate the spatial and temporal variations and sometimes sharp changes in the flow pattern in three dimensions. Although these hydrodynamic conditions are critical for all marine and hydraulic works along the Bosphorus, there was not continuous long-term measurement for a sufficient time span in the strait for detailed evaluation of the current climate. An extensive site surveying work including current, wind, pressure and water level measurements was carried out between September 2004 and January 2006 in relation to the design and construction requirements of the Bosphorus Tube Crossing Project. In this study, the characteristics of stratified flow in the Bosphorus Strait and their relation to local and regional, short- and long-term changes in the meteorological parameters are studied by using the measurement data and the results are discussed comparatively.
机译：博斯普鲁斯海峡是海洋学上非常复杂的两层分层海峡，来自马尔马拉海的稠密水流向北流，而较轻的水流则从黑海流向南部。博斯普鲁斯海峡两端的水位差在-0.2至0.6 m范围内季节性变化。季节变化主要取决于与水文循环有关的相邻盆地的水位变化，大气压力的短期变化和风的特征。这些变化以及沿海峡的横截面的深度和对齐方式支配了空间和时间变化，有时甚至在三个方面使流动模式发生了急剧变化。尽管这些流体动力学条件对于博斯普鲁斯海峡沿岸的所有海洋和水利工程至关重要，但海峡两岸没有足够长时间的连续长期测量来详细评估当前气候。 2004年9月至2006年1月，根据博斯普鲁斯海峡管道穿越项目的设计和施工要求，进行了广泛的现场勘测工作，包括流量，风，压力和水位测量。在这项研究中，利用测量数据研究了博斯普鲁斯海峡海峡的分层流动特征及其与气象参数的局部和区域，短期和长期变化的关系，并对结果进行了比较讨论。

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