由上方水平温度和盐度梯度引起的温盐交错
Thermohaline interleaving induced by horizontal temperature and salinity gradients from above
摘要：
在海洋中，温盐侵入和交错层发生在具有水平温度和盐度梯度的水团锋面内，这提供了重要的水平混合机制。在这里，我们报告了一种新类型的温盐入侵，这是由于在垂直方向上的不同的双扩散混合率在相邻深度的流体层中的水平温度和盐度梯度驱动。一旦建立，侵入层共享与梯度区域内发现的那些行为相似的行为。这种入侵过程产生额外的水平热量和盐度通量向冷，新鲜的一面，但传递的密度异常向暖，咸的一面。这些发现极大地扩展了温盐侵入体的观测范围。
英文摘要：
In the Ocean, thermohaline intrusions and interleaving layers occur within the water mass fronts with horizontal temperature and salinity gradients, which provide an important horizontal mixing mechanism. Here we report a new type of thermohaline intrusion which is driven by the horizontal temperature and salinity gradients in the fluid layers at adjacent depths due to the different double diffusive mixing rates in the vertical direction. Once established, the intrusion layers share similar behaviors as those found within the gradient regions. Such intrusion process generates extra horizontal heat and salinity fluxes towards the cold and fresh side, but transfer density anomaly towards the warm and salty side. These findings greatly extend the circumstance where thermohaline intrusions may be observed.
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