珠江口伶仃洋水沙纵向输移特征分析

ANALYSES ON WATER AND SUSPENDED SEDIMENTFLUXES IN LINGDINGYANG ESTUARYOF ZHUJIANG RIVER MOUTH

根据实测资料，运用物质纵向输移模式探讨了丰水期伶仃洋河口湾余流的垂向结构。结果表明，东、西两槽均存在由湾口表、中层冲淡水和底层上溯流构成的垂向环流，平均流、斯托克斯漂移效应以及垂向净环流是净输沙的主要贡献项。

Based on measured data and the model of longitudinal material fluxes, thepaper analyzes the vertical profiles of Eulerian, Stokes and Lagrange residual currents inwet season in the Lingdingyang Estuary of the Zhujiang River Mouth. The calculated re-sults show that there exist vertical circulations mainly formed by diluted water of upperlayer and salt water of lower layer for compensation in the east and west channels of theLingdingyang Estuary. The distribution of net suspended sediment transport is due tosteady advection, mass Stokes drift and vertical circulation.