New beach geomorphic features associated with a temporal climate storm event, coinciding with the February 6, 2023, little tsunami, Ras El-Bar, Nile Delta coast, Egypt
Abstract Typically, a temporal storm event, coupled with the earthquakes on February 6, 2023, in Kahramanmaraş, Turkey, and described as the little tsunami, resulted in new beach geomorphic features. The current study addresses these features, recorded at Ras El-Bar coast, using a remote sensing, fi...
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2025-05-01
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| Online Access: | https://doi.org/10.1186/s40562-025-00392-8 |
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| author | Hesham M. El-Asmar Mahmoud Sh. Felfla Mariam T. Ragab Doaa M. Naguib Sameh B. El-Kafrawy |
| author_facet | Hesham M. El-Asmar Mahmoud Sh. Felfla Mariam T. Ragab Doaa M. Naguib Sameh B. El-Kafrawy |
| author_sort | Hesham M. El-Asmar |
| collection | DOAJ |
| description | Abstract Typically, a temporal storm event, coupled with the earthquakes on February 6, 2023, in Kahramanmaraş, Turkey, and described as the little tsunami, resulted in new beach geomorphic features. The current study addresses these features, recorded at Ras El-Bar coast, using a remote sensing, field observation, beach profile surveys, and a grain size analysis. The results indicate that the beach is no longer dissipative, with slopes shifting from gentle (1.15°–1.3°) to steeper (2.10°–2.17°) and grain size coarsening from fine sand (0.18 mm–0.22 mm) to medium sand (0.28 mm–0.32 mm). Surf scaling reflects a transition from spilling breakers (ε = 24–72 between 1998 and 2022) to plunging breakers (ε = 8–14 between 2023 and 2024). This shift is accompanied by the formation of intermediate reflective beaches, including transverse bar-rip (TBR) (Ω = 3) and rhythmic bar and beach (RBB) (Ω = 4) morphologies. The Digital Shoreline Analysis System reveals shoreline changes, with an average erosion of − 6.1 m and accretion of 8.4 m, influenced by the shoreline’s response to protection measures. Bathymetry and shoreface profiles highlight changes in sea bottom topography with pronounced scouring. The beach exhibits rhythmic cusps spaced 3–5 m apart, rip channel transects, concave tidal flat, and a slip-faced transverse bar of mixed shells and sand. Ripple scouring linguoidal and linear shapes, with combined increased wave height and turbidity driven by a faster-falling tide, confirming the occurrence of an unusual storm event, described as a little tsunami. |
| format | Article |
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| institution | DOAJ |
| issn | 2196-4092 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | SpringerOpen |
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| series | Geoscience Letters |
| spelling | doaj-art-e9682d9a313a406486e50405c8114f432025-08-20T03:09:20ZengSpringerOpenGeoscience Letters2196-40922025-05-0112111810.1186/s40562-025-00392-8New beach geomorphic features associated with a temporal climate storm event, coinciding with the February 6, 2023, little tsunami, Ras El-Bar, Nile Delta coast, EgyptHesham M. El-Asmar0Mahmoud Sh. Felfla1Mariam T. Ragab2Doaa M. Naguib3Sameh B. El-Kafrawy4Department of Geology, Damietta UniversityDepartment of Geology, Damietta UniversityDepartment of Geography, Damietta UniversityMarine Science Division, The National Authority for Remote Sensing and Space Sciences (NARSS)Marine Science Division, The National Authority for Remote Sensing and Space Sciences (NARSS)Abstract Typically, a temporal storm event, coupled with the earthquakes on February 6, 2023, in Kahramanmaraş, Turkey, and described as the little tsunami, resulted in new beach geomorphic features. The current study addresses these features, recorded at Ras El-Bar coast, using a remote sensing, field observation, beach profile surveys, and a grain size analysis. The results indicate that the beach is no longer dissipative, with slopes shifting from gentle (1.15°–1.3°) to steeper (2.10°–2.17°) and grain size coarsening from fine sand (0.18 mm–0.22 mm) to medium sand (0.28 mm–0.32 mm). Surf scaling reflects a transition from spilling breakers (ε = 24–72 between 1998 and 2022) to plunging breakers (ε = 8–14 between 2023 and 2024). This shift is accompanied by the formation of intermediate reflective beaches, including transverse bar-rip (TBR) (Ω = 3) and rhythmic bar and beach (RBB) (Ω = 4) morphologies. The Digital Shoreline Analysis System reveals shoreline changes, with an average erosion of − 6.1 m and accretion of 8.4 m, influenced by the shoreline’s response to protection measures. Bathymetry and shoreface profiles highlight changes in sea bottom topography with pronounced scouring. The beach exhibits rhythmic cusps spaced 3–5 m apart, rip channel transects, concave tidal flat, and a slip-faced transverse bar of mixed shells and sand. Ripple scouring linguoidal and linear shapes, with combined increased wave height and turbidity driven by a faster-falling tide, confirming the occurrence of an unusual storm event, described as a little tsunami.https://doi.org/10.1186/s40562-025-00392-8Ras El-BarNile DeltaEgyptBeach GeomorphologyBeach morphodynamicsTsunami |
| spellingShingle | Hesham M. El-Asmar Mahmoud Sh. Felfla Mariam T. Ragab Doaa M. Naguib Sameh B. El-Kafrawy New beach geomorphic features associated with a temporal climate storm event, coinciding with the February 6, 2023, little tsunami, Ras El-Bar, Nile Delta coast, Egypt Geoscience Letters Ras El-Bar Nile Delta Egypt Beach Geomorphology Beach morphodynamics Tsunami |
| title | New beach geomorphic features associated with a temporal climate storm event, coinciding with the February 6, 2023, little tsunami, Ras El-Bar, Nile Delta coast, Egypt |
| title_full | New beach geomorphic features associated with a temporal climate storm event, coinciding with the February 6, 2023, little tsunami, Ras El-Bar, Nile Delta coast, Egypt |
| title_fullStr | New beach geomorphic features associated with a temporal climate storm event, coinciding with the February 6, 2023, little tsunami, Ras El-Bar, Nile Delta coast, Egypt |
| title_full_unstemmed | New beach geomorphic features associated with a temporal climate storm event, coinciding with the February 6, 2023, little tsunami, Ras El-Bar, Nile Delta coast, Egypt |
| title_short | New beach geomorphic features associated with a temporal climate storm event, coinciding with the February 6, 2023, little tsunami, Ras El-Bar, Nile Delta coast, Egypt |
| title_sort | new beach geomorphic features associated with a temporal climate storm event coinciding with the february 6 2023 little tsunami ras el bar nile delta coast egypt |
| topic | Ras El-Bar Nile Delta Egypt Beach Geomorphology Beach morphodynamics Tsunami |
| url | https://doi.org/10.1186/s40562-025-00392-8 |
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