Some characteristic wave energy dissipation patterns along the Polish coast

Summary: The paper analyses cross-shore bathymetric profiles between Władysławowo (km 125 of the national coastal chainage) and Lake Sarbsko (km 174) commissioned in 2005 and 2011 by coastal authorities for monitoring purposes. The profiles, spaced every 500 m, cover beach topography from dune/cliff...

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Main Authors: Grzegorz Różyński, Piotr Szmytkiewicz
Format: Article
Language:English
Published: Elsevier 2018-10-01
Series:Oceanologia
Online Access:http://www.sciencedirect.com/science/article/pii/S0078323418300599
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author Grzegorz Różyński
Piotr Szmytkiewicz
author_facet Grzegorz Różyński
Piotr Szmytkiewicz
author_sort Grzegorz Różyński
collection DOAJ
description Summary: The paper analyses cross-shore bathymetric profiles between Władysławowo (km 125 of the national coastal chainage) and Lake Sarbsko (km 174) commissioned in 2005 and 2011 by coastal authorities for monitoring purposes. The profiles, spaced every 500 m, cover beach topography from dune/cliff tops through the emerged beach to a seabed depth of about 15 m. They were decomposed by signal processing techniques to extract their monotonic components containing all major modes of the variability of beach topography. They are termed empirical equilibrium profiles and can be used for straightforward assessment of wave energy dissipation rates. Three characteristic patterns of wave energy dissipation were thus identified: one associated with large nearshore bars and several zones of wave breaking; a second, to which the equilibrium beach profile concept can be applied; and a third, characterized by mixed behaviour. Interestingly, most profiles showed significant seabed variations beyond the nearshore depth of closure – this phenomenon requires comprehensive studies in future. Keywords: Coastal morphology, Wave energy dissipation, Equilibrium profiles, Data-driven modelling, Signal processing
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spelling doaj.art-05766949a8f14fc99a50fec41dbffecc2022-12-22T00:10:02ZengElsevierOceanologia0078-32342018-10-01604500512Some characteristic wave energy dissipation patterns along the Polish coastGrzegorz Różyński0Piotr Szmytkiewicz1Corresponding author at: Institute of Hydro-Engineering, Polish Academy of Sciences, Kościerska 7, 80-328 Gdańsk, Poland. Tel.: +48 58 5222907; fax: +48 58 5524211.; Institute of Hydro-Engineering, Polish Academy of Sciences, Gdańsk, PolandInstitute of Hydro-Engineering, Polish Academy of Sciences, Gdańsk, PolandSummary: The paper analyses cross-shore bathymetric profiles between Władysławowo (km 125 of the national coastal chainage) and Lake Sarbsko (km 174) commissioned in 2005 and 2011 by coastal authorities for monitoring purposes. The profiles, spaced every 500 m, cover beach topography from dune/cliff tops through the emerged beach to a seabed depth of about 15 m. They were decomposed by signal processing techniques to extract their monotonic components containing all major modes of the variability of beach topography. They are termed empirical equilibrium profiles and can be used for straightforward assessment of wave energy dissipation rates. Three characteristic patterns of wave energy dissipation were thus identified: one associated with large nearshore bars and several zones of wave breaking; a second, to which the equilibrium beach profile concept can be applied; and a third, characterized by mixed behaviour. Interestingly, most profiles showed significant seabed variations beyond the nearshore depth of closure – this phenomenon requires comprehensive studies in future. Keywords: Coastal morphology, Wave energy dissipation, Equilibrium profiles, Data-driven modelling, Signal processinghttp://www.sciencedirect.com/science/article/pii/S0078323418300599
spellingShingle Grzegorz Różyński
Piotr Szmytkiewicz
Some characteristic wave energy dissipation patterns along the Polish coast
Oceanologia
title Some characteristic wave energy dissipation patterns along the Polish coast
title_full Some characteristic wave energy dissipation patterns along the Polish coast
title_fullStr Some characteristic wave energy dissipation patterns along the Polish coast
title_full_unstemmed Some characteristic wave energy dissipation patterns along the Polish coast
title_short Some characteristic wave energy dissipation patterns along the Polish coast
title_sort some characteristic wave energy dissipation patterns along the polish coast
url http://www.sciencedirect.com/science/article/pii/S0078323418300599
work_keys_str_mv AT grzegorzrozynski somecharacteristicwaveenergydissipationpatternsalongthepolishcoast
AT piotrszmytkiewicz somecharacteristicwaveenergydissipationpatternsalongthepolishcoast