Simulated wave-driven sediment transport along the eastern coast of the Baltic Sea

Soomere, Tarmo; Viška, Maija

doi:10.1016/j.jmarsys.2013.02.001

Cited by 51 publications

(62 citation statements)

References 13 publications

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“…Similarly to (Viška, Soomere 2012;Soomere, Viška 2013), the calculations rely on the hourly time series of wave properties evaluated using the third-generation spectral wave model WAM (Komen et al 1994) and adjusted geostrophic winds. The wave model was run for the entire Baltic Sea with a spatial resolution of about three nautical miles for 1970.…”

Section: Methodsmentioning

confidence: 99%

“…The sediment transport, coastal processes in general and erosion in particular are usually more intense along the open Baltic Sea coast than in the Gulf of Riga. The local deviations of the littoral flow from the above-described general pattern have been analysed using both observational (Gilbert 2008;Eberhards et al 2009;Zhamoida et al 2009) and numerically simulated data sets (Ulsts 1998;Zemlys et al 2007;Viška, Soomere 2012;Soomere, Viška 2013). The alongshore transport is the most intense along the north-eastern coast of the Courland Peninsula and in the western part of the Sambian Peninsula.…”

Section: Introductionmentioning

confidence: 99%

“…An obvious reason for this mismatch is the use of the significant wave height to characterise the energy flux of beaching waves in the version of the CERC (Coastal Engineering Research Centre) model that was tuned for the root mean square wave height (Soomere, Viška 2013). While designed to compensate for a systematic under-estimation of the modelled wave heights , doing so led to severe over-prediction of the alongshore transport rate.…”

Section: Introductionmentioning

confidence: 99%

“…Their refraction is accompanied by a considerable decrease in the wave height. This feature motivated to employ a simplified scheme for the shoaling-driven changes and to resolve the refraction process in detail (Viška, Soomere 2012;Soomere, Viška 2013). For larger incidence angles this scheme may overestimate both the breaking-wave height and the approach angle at the breaker line.…”

Section: Introductionmentioning

confidence: 99%

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Simulated and observed reversals of wave-driven alongshore sediment transport at the eastern Baltic Sea coast

Viška

Soomere

2013

Baltica

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This paper aims to analyse the sensitivity of patterns of numerically simulated potential sediment transport along the eastern Baltic Sea coast. The study area extends from the Sambian (Samland) Peninsula to Pärnu Bay in the Gulf of Riga. The magnitudes of net and bulk transport depend largely on how the shoaling and refraction of the waves are resolved. The qualitative patterns of net and bulk sediment transport are almost insensitive with respect to the details of wave transformation in the nearshore and with respect to grain size. The overall counter-clockwise transport along the study area contains two persistent reversals along the coast of the Baltic Sea proper and two frequently recurring reversals along the eastern margin of the Gulf of Riga. Individual years with normal levels of wind speed may host completely different patterns of sediment transport. The location of the most persistent convergence and divergence areas of the net transport acceptably matches the granulometric composition of the nearshore seabed up to a few km from the shoreline.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Simulated and observed reversals of wave-driven alongshore sediment transport at the eastern Baltic Sea coast

Viška

Soomere

2013

Baltica

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“…A deeper discussion of this concept in the Baltic Sea framework can be found in Soomere et al (2013). Net sand transport itself is again equal to the difference of two values bulk transports to the left and to the right Gravens et al 1991).…”

Section: Figmentioning

confidence: 99%

A coupled model of wave-driven erosion for the Palanga Beach, Lithuania

Mėžinė

Zemlys

Gulbinskas

2013

Baltica

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A model of the coastline dynamics along the Palanga Beach, Lithuania is developed through coupling of the GENESIS software with the external wave model RCPWAVE that accounts for the recent bottom topography. Analysis of the calibration and verification results of the coupled model shows that it reproduces the coastline dynamics reasonably well and can serve as an effective tool for coastal management. The largest discrepancies between the observed and modelled behaviour of the coastline occur near the Rąžė River mouth.

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Wind influence on the orientation of estuarine landforms: An example from Lake Illawarra in southeastern Australia

Deng

Jones

Rogers

et al. 2018

Earth Surf Processes Landf

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We propose a type of a quasi‐equilibrium, which describes a convergence of the estuarine system towards a form whose planimetric orientation is along the prevailing winds. By using the microtidal Lake Illawarra in southeastern Australia as an example, we describe sediment convergent and divergent processes that induce such an equilibrium controlled by the complex configuration of the shoreline relative to the prevailing winds. For a complex estuarine sedimentary system with a mixture of non‐cohesive and cohesive sediments, alongshore distribution of fluvial or marine sand deposition and associated subaqueous morphology reflects alongshore redistribution of sediments from rivers and the tidal inlet. The orientation of the second‐order polynomial trend surface of estuarine morphology is consistent with prevailing wind directions. Along the lake shore, there are extensive narrow flats mainly covered by fluvial or marine sands shaped by the prevailing winds. The implementation of the Delft3D flow model coupled with the SWAN wave model driven by idealized prevailing winds indicates the potential of sediment convergent and divergent transport at the embayment and promontory shoreline, which appears to be similar to the alongshore distribution of sandy sediments and the nearshore flats. Alongshore transport of sandy sediments is primarily induced by the wave refraction on the shore, while the currents are more effective in transporting fine‐grained sediments such as mud or clay. Finally, we suggest a conceptual model that describes potential sediment transport of convergence and divergence on the embayment or promontory shoreline that is normal to the prevailing winds. Orientation of the estuary follows the convergence centre of sediment transport driven by the prevailing winds with the largest fetch. A quantitative threshold for such sediment redistribution may be determined in the future. © 2018 John Wiley & Sons, Ltd.

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Simulated wave-driven sediment transport along the eastern coast of the Baltic Sea

Cited by 51 publications

References 13 publications

Simulated and observed reversals of wave-driven alongshore sediment transport at the eastern Baltic Sea coast

Simulated and observed reversals of wave-driven alongshore sediment transport at the eastern Baltic Sea coast

A coupled model of wave-driven erosion for the Palanga Beach, Lithuania

Wind influence on the orientation of estuarine landforms: An example from Lake Illawarra in southeastern Australia

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