Storm Surges Versus Shore Erosion: 21 Years (2000–2020) of Observations on the Świna Gate Sandbar (Southern Baltic Coast)
Based on observations spanning 21 years (2000–2020), the article studies the effects of storm surges on the shore of the Świna Gate Sandbar in the southern part of the Pomeranian Bay (southern Baltic Sea). Impacts of selected maximum storm surges in each year were assessed with respect to morphologi...
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| Format: | Article |
| Language: | English |
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Sciendo
2022-07-01
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| Series: | Quaestiones Geographicae |
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| Online Access: | https://doi.org/10.2478/quageo-2022-0023 |
| _version_ | 1811171359946964992 |
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| author | Łabuz Tomasz Arkadiusz |
| author_facet | Łabuz Tomasz Arkadiusz |
| author_sort | Łabuz Tomasz Arkadiusz |
| collection | DOAJ |
| description | Based on observations spanning 21 years (2000–2020), the article studies the effects of storm surges on the shore of the Świna Gate Sandbar in the southern part of the Pomeranian Bay (southern Baltic Sea). Impacts of selected maximum storm surges in each year were assessed with respect to morphological data collected on the beach and the foredune. The data included parameters of beach-dune erosion as measured along a beach transect before and after each surge. Differences and trends in the shore erosion were related to the sea level (SL), duration of a storm surge [highest storm sea level (HSL) > 1 m], wind-wave sector and wave run-up. The relationships were explored using a simple correlation analysis. The most serious erosion was observed during the heaviest surges [HSL > 1.3 m above the mean sea level (AMSL)], with a wave run-up higher than 3.2 m AMSL. Such surges occurred at about 2-year intervals. The average SL during a surge was 1.2 m AMSL, with a run-up of 2.6 m AMSL. The beach and the lower part of the shore, below that level, were eroded each year. The heaviest surges resulted in an average 5.2 m and 7.0 m dune retreat on the high-beach-accumulative shore and on the low-beach-erosive shore, respectively. The dune was not eroded when the beach height exceeded the wave run-up. The heaviest surges eroded away 12–14 m3 of the beach sand volume. The shore erosion was found to be related to the storm surge duration, the maximum SL, the run-up and the beach height prior to the surge. |
| first_indexed | 2024-04-10T17:12:42Z |
| format | Article |
| id | doaj.art-3ea87f71a6e14be98df394f0f43f87a6 |
| institution | Directory Open Access Journal |
| issn | 2081-6383 |
| language | English |
| last_indexed | 2024-04-10T17:12:42Z |
| publishDate | 2022-07-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Quaestiones Geographicae |
| spelling | doaj.art-3ea87f71a6e14be98df394f0f43f87a62023-02-05T19:41:57ZengSciendoQuaestiones Geographicae2081-63832022-07-0141353110.2478/quageo-2022-0023Storm Surges Versus Shore Erosion: 21 Years (2000–2020) of Observations on the Świna Gate Sandbar (Southern Baltic Coast)Łabuz Tomasz Arkadiusz0Institute of Marine and Environmental Sciences, University of Szczecin, Szczecin, PolandBased on observations spanning 21 years (2000–2020), the article studies the effects of storm surges on the shore of the Świna Gate Sandbar in the southern part of the Pomeranian Bay (southern Baltic Sea). Impacts of selected maximum storm surges in each year were assessed with respect to morphological data collected on the beach and the foredune. The data included parameters of beach-dune erosion as measured along a beach transect before and after each surge. Differences and trends in the shore erosion were related to the sea level (SL), duration of a storm surge [highest storm sea level (HSL) > 1 m], wind-wave sector and wave run-up. The relationships were explored using a simple correlation analysis. The most serious erosion was observed during the heaviest surges [HSL > 1.3 m above the mean sea level (AMSL)], with a wave run-up higher than 3.2 m AMSL. Such surges occurred at about 2-year intervals. The average SL during a surge was 1.2 m AMSL, with a run-up of 2.6 m AMSL. The beach and the lower part of the shore, below that level, were eroded each year. The heaviest surges resulted in an average 5.2 m and 7.0 m dune retreat on the high-beach-accumulative shore and on the low-beach-erosive shore, respectively. The dune was not eroded when the beach height exceeded the wave run-up. The heaviest surges eroded away 12–14 m3 of the beach sand volume. The shore erosion was found to be related to the storm surge duration, the maximum SL, the run-up and the beach height prior to the surge.https://doi.org/10.2478/quageo-2022-0023storm surgesea levelrun-updune erosionbeach erosionsand volume changesbaltic sea |
| spellingShingle | Łabuz Tomasz Arkadiusz Storm Surges Versus Shore Erosion: 21 Years (2000–2020) of Observations on the Świna Gate Sandbar (Southern Baltic Coast) Quaestiones Geographicae storm surge sea level run-up dune erosion beach erosion sand volume changes baltic sea |
| title | Storm Surges Versus Shore Erosion: 21 Years (2000–2020) of Observations on the Świna Gate Sandbar (Southern Baltic Coast) |
| title_full | Storm Surges Versus Shore Erosion: 21 Years (2000–2020) of Observations on the Świna Gate Sandbar (Southern Baltic Coast) |
| title_fullStr | Storm Surges Versus Shore Erosion: 21 Years (2000–2020) of Observations on the Świna Gate Sandbar (Southern Baltic Coast) |
| title_full_unstemmed | Storm Surges Versus Shore Erosion: 21 Years (2000–2020) of Observations on the Świna Gate Sandbar (Southern Baltic Coast) |
| title_short | Storm Surges Versus Shore Erosion: 21 Years (2000–2020) of Observations on the Świna Gate Sandbar (Southern Baltic Coast) |
| title_sort | storm surges versus shore erosion 21 years 2000 2020 of observations on the swina gate sandbar southern baltic coast |
| topic | storm surge sea level run-up dune erosion beach erosion sand volume changes baltic sea |
| url | https://doi.org/10.2478/quageo-2022-0023 |
| work_keys_str_mv | AT łabuztomaszarkadiusz stormsurgesversusshoreerosion21years20002020ofobservationsontheswinagatesandbarsouthernbalticcoast |