Initial adjustment of underwater profiles after nourishment in a mild wave climate: a case study near Klaipėda, the Baltic Sea
We analyze the spatio-temporal dynamics of sand relocation for beach nourishment in the low-energy coastal segment north of the Port of KlaipÄda, eastern Baltic Sea, under mild wave conditions, with significant wave heights below 0.9 m and water level variations from â30 to 44 cm with respect to the...
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Estonian Academy Publishers
2024-12-01
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| Series: | Estonian Journal of Earth Sciences |
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| Online Access: | https://kirj.ee/wp-content/plugins/kirj/pub/earth-1-2025-22-33_20250205175104.pdf |
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| author | Ilona Šakurova Vitalijus Kondrat Eglė Baltranaitė Vita Gardauskė Loreta Kelpšaitė-Rimkienė Tarmo Soomere Kevin E. Parnell |
| author_facet | Ilona Šakurova Vitalijus Kondrat Eglė Baltranaitė Vita Gardauskė Loreta Kelpšaitė-Rimkienė Tarmo Soomere Kevin E. Parnell |
| author_sort | Ilona Šakurova |
| collection | DOAJ |
| description | We analyze the spatio-temporal dynamics of sand relocation for beach nourishment in the low-energy coastal segment north of the Port of KlaipÄda, eastern Baltic Sea, under mild wave conditions, with significant wave heights below 0.9 m and water level variations from â30 to 44 cm with respect to the long-term average. In summer 2022, about 180 000 m3 of sand was added approximately 120 m from the shore at water depths of 2â3.5 m to form a 750 m long underwater bar. Sand relocation is evaluated based on repeated water depth measure ments along 114 cross-shore coastal profiles. Some sand was rapidly transported to greater depths, down to about 6 m, even though wave conditions were particularly mild. The pre dominant sand motion was directed offshore, and characteristically for the area, wave-driven sediment transport was directed to the north. The analysis confirms that even very mild wave conditions can substantially relocate large volumes of deposited sand in shallow water, both offshore and onshore, from its original location during the initial adjustment phase following nourishment. |
| format | Article |
| id | doaj-art-2c90aa451af34412995328baea3d090e |
| institution | Kabale University |
| issn | 1736-4728 1736-7557 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Estonian Academy Publishers |
| record_format | Article |
| series | Estonian Journal of Earth Sciences |
| spelling | doaj-art-2c90aa451af34412995328baea3d090e2025-02-06T10:57:49ZengEstonian Academy PublishersEstonian Journal of Earth Sciences1736-47281736-75572024-12-017412233https://doi.org/10.3176/earth.2025.02https://doi.org/10.3176/earth.2025.02Initial adjustment of underwater profiles after nourishment in a mild wave climate: a case study near Klaipėda, the Baltic SeaIlona Šakurova0Vitalijus Kondrat1Eglė Baltranaitė2Vita Gardauskė3Loreta Kelpšaitė-Rimkienė4Tarmo Soomere5Kevin E. Parnell6Marine Research Institute, Klaipėda University, Herkaus Manto g. 84, 92294 Klaipėda, LithuaniaMarine Research Institute, Klaipėda University, Herkaus Manto g. 84, 92294 Klaipėda, LithuaniaEnvironmental Management Research Laboratory, Mykolas Romeris University, Ateities g. 20, LT-08303 Vilnius, LithuaniaMarine Research Institute, Klaipėda University, Universiteto Alėja 17, LT-92294 Klaipėda, LithuaniaMarine Research Institute, Klaipėda University, Herkaus Manto g. 84, 92294 Klaipėda, LithuaniaEstonian Academy of Sciences, Kohtu 6, 10130 Tallinn, Estonia / Department of Cybernetics, School of Science, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, EstoniaWave Engineering Laboratory, Department of Cybernetics, School of Science, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, EstoniaWe analyze the spatio-temporal dynamics of sand relocation for beach nourishment in the low-energy coastal segment north of the Port of KlaipÄda, eastern Baltic Sea, under mild wave conditions, with significant wave heights below 0.9 m and water level variations from â30 to 44 cm with respect to the long-term average. In summer 2022, about 180 000 m3 of sand was added approximately 120 m from the shore at water depths of 2â3.5 m to form a 750 m long underwater bar. Sand relocation is evaluated based on repeated water depth measure ments along 114 cross-shore coastal profiles. Some sand was rapidly transported to greater depths, down to about 6 m, even though wave conditions were particularly mild. The pre dominant sand motion was directed offshore, and characteristically for the area, wave-driven sediment transport was directed to the north. The analysis confirms that even very mild wave conditions can substantially relocate large volumes of deposited sand in shallow water, both offshore and onshore, from its original location during the initial adjustment phase following nourishment.https://kirj.ee/wp-content/plugins/kirj/pub/earth-1-2025-22-33_20250205175104.pdfcoastal erosioncoastal profilessediment transportbathymetry changes |
| spellingShingle | Ilona Šakurova Vitalijus Kondrat Eglė Baltranaitė Vita Gardauskė Loreta Kelpšaitė-Rimkienė Tarmo Soomere Kevin E. Parnell Initial adjustment of underwater profiles after nourishment in a mild wave climate: a case study near Klaipėda, the Baltic Sea Estonian Journal of Earth Sciences coastal erosion coastal profiles sediment transport bathymetry changes |
| title | Initial adjustment of underwater profiles after nourishment in a mild wave climate: a case study near Klaipėda, the Baltic Sea |
| title_full | Initial adjustment of underwater profiles after nourishment in a mild wave climate: a case study near Klaipėda, the Baltic Sea |
| title_fullStr | Initial adjustment of underwater profiles after nourishment in a mild wave climate: a case study near Klaipėda, the Baltic Sea |
| title_full_unstemmed | Initial adjustment of underwater profiles after nourishment in a mild wave climate: a case study near Klaipėda, the Baltic Sea |
| title_short | Initial adjustment of underwater profiles after nourishment in a mild wave climate: a case study near Klaipėda, the Baltic Sea |
| title_sort | initial adjustment of underwater profiles after nourishment in a mild wave climate a case study near klaipeda the baltic sea |
| topic | coastal erosion coastal profiles sediment transport bathymetry changes |
| url | https://kirj.ee/wp-content/plugins/kirj/pub/earth-1-2025-22-33_20250205175104.pdf |
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