Waves are fundamentally important for sediment re-suspension in estuary and coastal areas, especially for silty sediments, which can be easily suspended by waves, but the differential effects of swell and wind waves are still unclear. Integrated field observations were made from November 2012 to March 2013 including waves, currents, and suspending sediments on the offshore seabed of the Huanghe Delta to explore the mechanism of sediment re-suspension in silty coastal zones. During the five months of observation, there were more than 30 winter wind events that affected the study area and induced sediment re-suspension with varying suspended sediment concentration. The observed wave composition was separated into swell and wind waves using a bandpass filter. Results show that large swell (with significant height > 1.0 m) coming from the offshore direction (NE in our study area) dominated sediment resuspension in the coastal seabed due to the fact that this wind direction had the longest average fetch. Winds from the onshore direction usually had smaller swell due to their short fetch and caused limited sediment re-suspension. The residual currents caused by NE winds also transport larger sediment. An individual NE wind event could transport sediment 8–13.6 t/m² and 5.1–8.2 t/m² in directions parallel and perpendicular, respectively, to the isobaths, which is much higher than the sediment transportation during an individual NW wind event, which could transport 1.5–4 t/m² and 0.6–5 t/m² parallel and perpendicular, respectively, to the isobaths. Our research shows that large swell and the accompanying residual currents caused by NE winds (from offshore direction) are a vital driving force for sediment resuspension and transportation in the offshore zone.

波浪对于河口和沿海地区的泥沙重新悬浮至关重要，特别是对于粉质沉积物，后者很容易被波浪悬挂，但是浪潮和风浪的不同影响尚不清楚。从2012年11月至2013年3月，对黄河三角洲近海海床的波浪，水流和悬浮沉积物进行了综合野外观测，以探讨粉质海岸带沉积物再悬浮的机制。在观察的五个月中，发生了30多次冬季风事件，影响了研究区域，并导致悬浮泥沙浓度变化，从而使泥沙重新悬浮。使用带通滤波器将观察到的波组成分为波和风波。结果表明，膨胀大（显着高度> 1。由于该风向的平均取水时间最长，因此来自沿海方向（本研究区域的东北）的0 m）主导了沿海海床的泥沙再悬浮。来自陆上方向的风通常由于吹气短而膨胀较小，并导致有限的泥沙再悬浮。东北风引起的剩余电流也输送较大的沉积物。单个东北风事件可输送沉积物8–13.6 t / m²和5.1–8.2 t / m ²分别与等压线平行和垂直，这比单个西北风事件中的泥沙输送高得多，后者可以输送1.5–4 t / m ²和0.6–5 t / m ²分别平行于和垂直于等压线。我们的研究表明，东北风（从海上方向）引起的大浪涌和伴随的剩余电流是海上沉积物再悬浮和运输的重要驱动力。