Modelling of wave climate and sediment transport patterns at a tideless embayed beach, Pirita Beach, Estonia

Soomere, Tarmo; Kask, Andres; Kask, J; Healy, Terry R.

doi:10.1016/j.jmarsys.2008.03.024

Cited by 21 publications

(32 citation statements)

References 13 publications

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“…The recent status of the beach, a short overview of the local wave regime and the overall patterns of wave-induced sediment transport processes along the beach are presented in [22], [25]. The wave climate in the vicinity of the beach is relatively mild and the closure depth evaluated according to [26] is in the range of 2.4-2.6 m. The average net loss of sand from the entire beach was estimated to be in the range of 1000-1250 m 3 /yr in 1986-2006 based on the relocation of the waterline and the local uplift rate [27].…”

Section: Study Areamentioning

confidence: 99%

“…Consequently, different sections of the beach may have different level of erosion or accretion. Approximately 50% of Pirita Beach suffers from substantial damage at times [25]. In the southern part, the width of the beach (up to 100 m, elevation up to 2 m above the mean water level) and the total sand volume has increased.…”

Section: Study Areamentioning

confidence: 99%

“…The central part of the beach is in a near equilibrium state. The bluff at the back of the beach is at times eroded to some extent in strong storms but relatively intense aeolian sand transport into the dune forest [25] can be interpreted as an expression of an excess of sand and a generally healthy state of the beach.…”

Section: Study Areamentioning

confidence: 99%

“…Although this stream is evidently not capable of bringing substantial volumes of sand to the beach, even a small sediment supply may keep its immediate vicinity in an almost equilibrium on the background of a gradually eroding beach section. Also, the meandering of its mouth under bidirectional littoral flow [25] may to a certain extent affect the location of the waterline and the volume of sediment present exactly along the profile.…”

Section: Single Profilesmentioning

confidence: 99%

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Combining airborne and terrestrial laser scanning to monitor coastal processes

Julge

Eelsalu

Grünthal

et al. 2014

2014 IEEE/OES Baltic International Symposium (BALTIC)

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This study explores the potential of joint use of terrestrial (TLS) and airborne laser scanning (ALS) to quantify rapid and spatially inhomogeneous changes to the subaerial beach and to characterize the intensity of coastal processes. This remote sensing technology that uses scanning laser pulses for acquiring high-resolution three-dimensional surface of the measured object is applied to beach segment of the Pirita Beach (Tallinn Bay, the Baltic Sea). The extent and distribution of erosion and accumulation spots are analyzed by means of creating and comparing two digital terrain models of these areas from scanning point clouds obtained in different seasons. After elimination of systematic errors the ALS/TLS combination yields sub-decimeter accuracy for height determination of the beach. The analysis reveals not only the corresponding volume changes in the study area but also several features of internal dynamics of the beach across and along the waterline that are overlooked by classical monitoring methods. The benefits and shortcomings of combining the two laser scanning methods for monitoring coastal processes and the accuracy of the results are also discussed.

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Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Single Profilesmentioning

confidence: 99%

See 2 more Smart Citations

Combining airborne and terrestrial laser scanning to monitor coastal processes

Julge

Eelsalu

Grünthal

et al. 2014

2014 IEEE/OES Baltic International Symposium (BALTIC)

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“…The model is a 2D spectral wind-wave model that includes the effects of growth, decay and transformation of wind-generated waves and swells from offshore to the coastal zone. For this purpose, reliable information on the wave climate at the site in question is important; enabling the accurate prediction of the sediment deposition processes (Soomere et al, 2008).…”

Section: Methodsmentioning

confidence: 99%

Numerical modelling approach for the management of seasonal influenced river channel entrance

Tay

Mitchell

Chen

et al. 2016

Ocean & Coastal Management

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a b s t r a c tThe dynamic nature of a river channel entrance is commonly seasonal dependant. This is evidenced in the topography of river channel entrances in East Coast of Borneo which is influenced by both North East (NE) and South West (SW) monsoons on top of surrounding parameters such as waves and tides, sedimentation as well as climate change. Advanced numerical modelling technique is frequently used as a leading approach to investigate the complicated nature of river channel entrance to well represent actual conditions of a designated area. This paper presented a mesoscale numerical modelling method by integrating reductionist and reduced complexity model approach along with local seasonal conditions to well represent river channel entrance problem and propose management measures. The model was established with a set of numerical equilibrium equations and calibrated parameters to reflect the features of regional conditions with the combination of local validated modelling parameters. The model had accurately represented the effects of both NE and SW monsoons in terms of hydraulics and sediment dynamics at the Petagas river channel entrance, as verified by site data and satellite imagery. In addition, the accuracy of the model provides confidence in the implementation of improvement measures at the river channel entrance. The improvement scheme includes a training channel and a breakwater in improving flushing capacity, thus preventing sedimentation and upstream flooding, allowing proper navigation through the river. In conclusion, the accurate investigational result from this numerical model had successfully demonstrated its scientific role in solving dynamic river channel entrance, which can serve as a numerical modelling approach for solving similar river channel entrance problems especially in the East Coast of Borneo with predominant inter-annual seasonal variations.

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Retrieving the Signal of Climate Change from Numerically Simulated Sediment Transport Along the Eastern Baltic Sea Coast

Soomere

Viška

Pindsoo

2017

Coastline Changes of the Baltic Sea From South to East

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Modelling of wave climate and sediment transport patterns at a tideless embayed beach, Pirita Beach, Estonia

Abstract: Nearshore sand transport patterns along the tideless, embayed Pirita beach, Tallinn

Cited by 21 publications

References 13 publications

Combining airborne and terrestrial laser scanning to monitor coastal processes

Combining airborne and terrestrial laser scanning to monitor coastal processes

Numerical modelling approach for the management of seasonal influenced river channel entrance

Retrieving the Signal of Climate Change from Numerically Simulated Sediment Transport Along the Eastern Baltic Sea Coast

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