Abstract
Density currents in jet shear flows are considered analytically in order to investigate the interaction between density currents and environmental shear. This study is an extension of Benjamin (1968)and Xu (1992), in which the environmental flows are uniform and of uniform shear, respectively. The environmental flows in this note have the same magnitude at both the upper and lower rigid boundaries, and an eastward maximum in the middle level. The result shows that, in spite of the eastwards negative shear in the upper layer, the depth and propagation speed of the density current increase as the shear increases.
