The Impact of Surface Wave on the Sediment Erosion and Deposition Near the Wellow River Mouth, China

Wang, Z F

doi:10.15666/aeer/1706_1491114926

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…The components of bed sediments are variable in the Yellow River mouth and the adjacent sea, including grit, fine sand, silt, and clay, among others. The sediment diameter varies between 0.005 and 0.08 mm (Sun, 2013). The water content of the bed sediment is lower (50%-60%) in the north side of the current Yellow River mouth and higher (approximately 80%) in the south side.…”

Section: Sediment Modulementioning

confidence: 98%

Dynamic response of water flow and sediment transport off the Yellow River mouth to tides and waves in winter

2023

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Freshwater and sediments are transported from the Yellow River mouth downstream along the coast into Laizhou Bay under the northeasterly wind in winter. Numerical experiments indicate that sediment transport shows the tendency of convergence in the river mouth, divergence in the downstream area, and convergence in the north of Laizhou Bay. Tides and waves are the two main forcings affecting the transport of water and sediments off river mouths. For the high-turbidity Yellow River mouth and the adjacent sea, tidal forcing enhances the subtidal downstream transport of water and sediments off the river mouth into Laizhou Bay, whereas wave forcing has little effect on the advection of water and sediments. Sediment resuspension is controlled by the bottom shear stress induced by tides and waves. The tide-induced bottom shear stress is higher in the north of Laizhou Bay and south of Bohai Bay due to the stronger bottom tidal current. The wave-induced bottom shear stress plays a more important role in sediment resuspension, which is higher in the nearshore region along the Yellow River Delta away from the coast to some extent on account of the maximum near-bottom wave orbital velocity. Tidal mixing strengthens the upward diffusion of the bottom suspended sediments. Without tidal forcing, there is an interesting phenomenon along the Yellow River Delta. In the nearshore region, the decreased bottom shear stress suspends less sediment above the bed. However, in the offshore region, the enhanced stratification hinders the upward diffusion of the bottom sediment due to the lack of tidal mixing, resulting in higher suspended sediment concentration (SSC) in the bottom layer.

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Section: Sediment Modulementioning

confidence: 98%

Dynamic response of water flow and sediment transport off the Yellow River mouth to tides and waves in winter

2023

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“…impact Froude number, displaced volume of water and water depth (Slingerland & Voight, 1979). Such waves may cause partial or total shore erosion, even resulting in the collapse of buildings and structures (like dams and harbors) (Prasad & Kumar, 2014;Wang et al, 2019a). Additionally, the displacement of large volumes of water and sediment can lead to an overtopping in downstream areas (Tessema et al, 2019), causing both loss of life and widespread damage to infrastructure.…”

Section: Introductionmentioning

confidence: 99%

Impulse wave in the Brazilian Lake of Capitólio

Maciel,

Pereira,

Sáo

et al. 2023

RBRH

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This note proposes a technical approach towards the disaster occurred on January 8, 2022, in the tourism region of Capitólio (Minas Gerais state, Brazil), where a massive quartzite rock broke from a cliff and toppled on to pleasure boaters drifting on a lake, leaving 10 people dead and 30 others injured. Even though the rockfall was decisive in the tragedy, it is reasonable to affirm that the submersion-wave impact certainly potentialized the accident. Along these lines, this work not only aims to videographically explore the geometric / kinematic characteristics of the solid block, but also to discuss the specificities pertaining the event. Lastly, with basis on the Noda Method (1970), this manuscript also estimates the resulting wave amplitude (near the impact) and the energy-transfer coefficient between the block and the body of water.

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“…Consequently, the Pleistocene formations were covered with Holocene fluvial sediments from which alluvial soils were developed (Piaścik et al, 1991;Hulisz et al, 2015). The origin and formation of the river delta is a complex process and depends on numerous factors: the quantity of sedimented material, the character and topgraphy of the estuary, the direction of sea tides, and others (Wang et al, 2015;Wang et al, 2019). Taking into account the hypsometry of the Vistula delta, two subregions can be distinguished: 'high' Żuławy, located from + 2.5 to + 10.0 m a.s.l.…”

Section: Introductionmentioning

confidence: 99%

Origin, properties and agricultural value of alluvial soils in the Vistula and Pasłęka deltas, north Poland

Orzechowski¹,

Smólczyński²,

Kalisz³

et al. 2022

Soil Sci. Ann.

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The aim of this study was to investigate the sorptive and air-water properties of alluvial soils of the Vistula and Pasłęka deltas, typologically differentiated in terms of habitat conditions, and to determine their agricultural values. Typical ordinary alluvial soils, humic ordinary alluvial soils, and typical brown alluvial soils were developed from loam, sandy loam and silty clay loam and were located in the oldest part of Żuławy, i.e. 'high' Żuławy (from + 2.5 to + 10.0 m a.s.l.). Typical chernozemic alluvial soils and gleyic chernozemic alluvial soils were formed mainly from silt clay, silt loam and clay loam. They were located mainly in the area of 'transitional' Żuławy (from 0.0 to + 2.5 m a.s.l.), 'low' Żuławy (less than 0.0 m a.s.l.) and in the Pasłęka delta. Chernozemic alluvial soils had greater cation exchange capacity, including base cations, than brown and ordinary alluvial soils. The least favorable air-water relationships were found in ordinary alluvial soils. The volume of macropores in arable horizons of these soils ranged from 3.1% to 4.5%. The ratio of macro-to meso-and micropores was wide: 1: 4.0-5.5: 3.6-5.4, while in chernozemic alluvial soils it was 1: 1.8-2.9: 2.5-3.8. The most favorable air-water relationships were found in arable horizons of typical brown alluvial soils, in which the macro-to meso-and micropores ratio was 1.0: 1.9: 0.7. Ordinary and brown alluvial soils were of 'high' Żuławy were properly or periodically excessively moist, and they are mainly classifi ed as good and medium good arable soils, class RIIIa and RIIIb, of the good wheat soil-agricultural complex. The chernozemic alluvial soils of 'depressive' Żuławy were periodically excessively moist, periodically wet, or permanently wet in the depressive parts of the land. These soils are mainly classifi ed as arable soils medium good, class RIIIb and medium value arable soils, classes RIVa and RIVb, of good wheat soil-agricultural complex and strong forage soilagricultural complex. The alluvial soils particularly rich in fi ne silt and clay fractions (over 60%) in depressive areas should be used as permanent grasslands. The conducted research has shown that the soil conditions in the delta areas of the Vistula and Pasłęka river mouths are closely related to the origin and land hypsometry, which differentiates the water conditions, the grain size of soil formations, their type and thickness.

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The Impact of Surface Wave on the Sediment Erosion and Deposition Near the Wellow River Mouth, China

Cited by 3 publications

References 9 publications

Dynamic response of water flow and sediment transport off the Yellow River mouth to tides and waves in winter

Dynamic response of water flow and sediment transport off the Yellow River mouth to tides and waves in winter

Impulse wave in the Brazilian Lake of Capitólio

Origin, properties and agricultural value of alluvial soils in the Vistula and Pasłęka deltas, north Poland

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