A sand wave is a lower regime sedimentary structure that forms across from tidal currents. [1] Sand waves are formed through the action of the wind or water (through waves or tidal currents) [2] and are a product of unidirectional flow. Sand waves are the result of a mean flow velocity between 40 and 70 cm/s. Sand waves also form underwater. [3][4]

2009年4月21日 · Results show that the model is able to describe the variation in the Golden Gate sand waves well when both the local oscillating tidal current and the residual current are taken into account. Current and water depth seem to be the most important factors influencing sand wave characteristics.

1980年5月1日 · Sand waves are large flow-transverse bedforms coupled to oscillatory boundary-layer currents of tidal origin.

Seabed sand waves are more or less rectilinear sand ridges arising from the interaction of tidal flow with the seabed. They form a regular undulating pattern with wavelengths (=distance between successive crests) of one hundred to one thousand meters, but …

沙波浪 （英語： sand wave）是通過風或水的作用，在 沉積 表面形成 波浪 形狀的結構 [1] [2]。 例如隨著车流量的增加和车速增快，路邊的沙土经常會产生沙波浪。 [3] ^ Allen, J.R.L. (1980). "Sand waves: A model of origin and internal structure". Sedimentary Geology. 26 (4): 281–328. doi:10.1016/0037-0738 (80)90022-6. ^ Olsson-Seffer, Pehr Hjalmar (1910). Genesis and Development of Sand Formations on Marine Coasts.

潮流沙波(tidal sand wave)和潮流沙脊(tidal sand ridge)广泛分布于潮汐河口、潮汐三角洲的前缘和潮汐作用强烈的陆架区。 这些地区的沉积物以砂质为主，潮流速度在0.5～1.5 m/s之间，适合于波状起伏的沉积底形的形成和保存。

2012年8月17日 · Simulations with variable wave incidence angles (alternating between 60° and 30°) show that a large proportion of high angle waves is required for spontaneous sand wave formation (at least 80%). Insight is provided into the physical mechanism behind high angle wave instability and the occurrence of a optimal length scale for sand wave growth.

2019年11月15日 · Sand waves can be formed and grow under a symmetry tide (such as the S2 used in above simulations). However, sand wave migrations may occur in case of the distortion and loss of tidal symmetry. Here we analyzed the relationship between sand wave migrations and tidal asymmetry. Two series of numerical experiments were conducted.

Sand Wave Field (NOBel Sands) (Figure 12.1, 2) An extensive sand wave field covering an area of around 440 km 2. The crests of the sand waves in the eastern and central part of NOBel Sands lie in water depths between 25 and 40 m, whereas those further to the west have crests in water depths of 40–60 m.

2014年1月1日 · Sand waves are generated and maintained by strong tide- or storm-generated currents flowing over a sandy bed in depths up to 100 m, but generally between 25–30 m. They characteristically lie normal to the dominant current, are asymmetrical in section and capable of migrating in the direction of the current.