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利用2011年7月的高频地波雷达观测与现场同步常规观测资料和卫星风场资料,分析南黄海辐射沙脊群夏季表层余流特征.结果表明,南黄海辐射沙脊群近岸海域的表层余流向海辐散,外围海域的夏季表层余流向北.南黄海辐射沙脊群近岸海域表层余流的辐散格局主要受潮波与沙脊群水下地形的相互作用影响,外围海域夏季的北向表层余流格局主要受风场的控制.高频地波雷达观测的余流场为南黄海西部夏季浒苔迁移和平面分布的解释提供了佐证.
The characteristics of surface overcurrent in summer over the South Yellow Sea radiating sand ridges were analyzed using the conventional observations of high frequency ground wave radar and synchronic synoptic observations and satellite wind field data in July 2011. The results show that the distribution of the surface overcurrent in summer in the South Yellow Sea radiation ridges group The surface residual flow is divergent towards the sea, and the summer surface residual fluxes in the peripheral sea area are northward. The divergence pattern of the surface residual flow in the coastal area of the South Yellow Sea radial sand ridges is mainly affected by the interaction between the tidal waves and the underwater terrain in the sand ridges. The pattern of the surface flow in the northward direction is mainly controlled by the wind field.The residual flow field observed by high frequency ground wave radar provides evidence for the summer migration and planar distribution of the Enteromorpha prolifera in the western South Yellow Sea.