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一、前言海底起伏对均质海洋中的坡度流(或谓之倾斜流)的影响,Ekman早已进行过研究。由于海洋中的坡度流可直达海底,因而不管是深海还是浅海,海底只要有起伏,均会使流动偏向。关于海底起伏对密度非均匀海洋中的密度流的影响,Sverdrup仅作过定性的分析,指出海流流经海脊,等δ面上凸,流向偏转。我们知道,密度流是海水密度分布不均导致等压面的倾斜产生的,它沿着等压面的等高线流动,而等δ面的上凸现象,往往是由于海底摩擦作用,产生垂直流速分量,从而产生新的压力场,使流动偏向。如果这作为海底起伏对
I. INTRODUCTION Ekman has long studied the effect of seafloor fluctuations on the gradient flow (or so-called inclined flow) in a homogeneous ocean. Due to the slope flow in the ocean reaches the sea floor, no matter it is deep or shallow sea, as long as there is ups and downs in the sea floor, the flow will be biased. Sverdrup made only qualitative analysis of the effect of seafloor fluctuations on the density flow in an inhomogeneous ocean, pointing out that the ocean currents flow through the ridges, such that the δ surface is convex and the flow deflects. We know that the density flow is caused by the uneven distribution of seawater density caused by the isobaric tilt, which flows along the contours of the isobaric surface, while the convexity of the δ surface is often due to the friction of the seafloor, resulting in vertical The flow velocity component creates a new pressure field that deflects the flow. If this is as seafloor