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首页> 外文期刊>Journal of Physical Oceanography >Latitudinal Structure of Solitons in the South China Sea
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Latitudinal Structure of Solitons in the South China Sea

机译：南海孤立垄断的纬度结构

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Four current-meter moorings and 12 pressure sensor-equipped inverted echo sounders (PIES) were deployed during summer 2011 in the South China Sea. The goal of the experiment was to obtain synoptic observations of the large-amplitude nonlinear internal waves from the near field to the far field as they propagated west-northwest across the sea. The program was unique because it was the first to observe the latitudinal variability of the wave crests in addition to the transformations along a single east-west transect. The waves were strongest down the center of the PIES array along roughly 20 degrees 45 ' N and were weaker off axis in both directions. Both a-waves and b-waves arrived earlier in the south than the north, but with different lag times indicating different propagation directions and therefore different sources. The waves were classified by their arrival patterns and source locations and not by their amplitude or packet structure. The Stanford Unstructured Nonhydrostatic Terrain-Following Adaptive Navier-Stokes Simulator (SUNTANS) model, calibrated against the array, showed that the a-waves developed out of the internal tide spawned in the southern portion of the Luzon Strait and the b-waves originated in the north. The northern tides were refracted and suffered large dissipative losses over the shallow portion of the western ridge, whereas the southern tides propagated west-northwest unimpeded, which resulted in a-waves that were larger and appeared sooner than the b-waves. The results were consistent with previous observations that can now be understood in light of the full three-dimensional structure of the internal waves and tides in the northeastern South China Sea.
机译：在2011年南海夏季，在2011年夏季部署了四个电流仪系泊和12个压力传感器的倒回响声仪（馅饼）。实验的目标是在海上传播西北西北部的近场到远场的大幅度非线性内部波的概要观察。该计划是独一无二的，因为它是第一个观察到沿着单一东西横断调的转换之外的波峰的纬度变异。波浪沿大约20度45英寸沿着大约20度45英寸沿着柱阵列的中心沿着大约20度沿并且在两个方向上较弱。 A-波浪和B波在南方比北方早期到达，但具有不同的滞后时间，指示不同的传播方向和因此不同的来源。波浪由其到达模式和源位置而不是其幅度或分组结构进行分类。斯坦福非结构化无水化地形之后的自适应Navier-Stokes模拟器（Suntans）模型校准阵列，显示出在吕宋海峡的南部产生的内部潮汐中出现的A-波起源于北部。北端潮汐在西部山脊的浅部分上被折射并遭受了大量的耗散损失，而南部潮汐繁殖西北部畅通无阻，这导致了一波较大，而且比B波更快地出现。结果与先前的观察结果一致，现在可以鉴于东北南海东北地区的内部波浪和潮汐的全部三维结构来理解。

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