Periodical Morphodynamic Changes of Sand Movements at El Jadida Beach

• Autorzy: Bourhili Amine , El Khalidi Khalid , Minoubi Abdenaim , Maanan Mehdi , Zourarah Bendahhou

Identyfikatory

DOI

10.12912/27197050/162253

• Języki publikacji: EN

Abstrakty

EN

El Jadida Beach (X: -8.5007116; Y: 33.2316326) is a sandy beach of low altitude that constitutes a kind of enclave located between the port of El Jadida and rocky outcrops. It is influenced by natural and anthropic factors, as well as the impact of tourism, particularly during the summer, when sand is used for amusement activities (Beach Ball competition). In order to follow the morphodynamic changes of this beach, we carried out a study on two different time scales: a fifty-five years (1963 – 2018) shoreline evolution study using aerial photos and satellite images based on GIS tools using the Digital Shoreline Analysis System (DSAS) and a two-years (2017–2019) morphological beach study using a Differential Global Positioning System (DGPS). According to the results obtained by the diachronic study, the beach studied showed erosion in its middle and an accumulation at these bulges. This result is due to the presence of the harbor breakwater to the NW and the rocky outcrops to the SE; acting as a barrier preventing the movement of sediments and the erosion in the middle can be explained by the reduction of the sediment supply from the Oued Oum Erabia and by the exposure of this part to the dominant swells and also the human activities like used the beach for amusement activities (Beach Ball competition and other). Beach profile observations results show accumulation in the subaerial beach and erosion in the lower part of the foreshore. The study on two different time scales adopted in this paper, allowed us to understand longshore and cross-shore sedimentary mobility.

Słowa kluczowe

EN

sandy beach; GIS tool; DSAS; DGPS; longshore drift; cross-shore

• Wydawca: Lubelski Oddział Polskiego Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology ; WNGB Wydawnictwo Naukowe
• Czasopismo: Ecological Engineering & Environmental Technology
• Rocznik: 2023
• Tom: Vol. 24, iss. 4
• Strony: 15--26
• Opis fizyczny: Bibliogr. 31 poz., rys., tab.

Twórcy

autor

Bourhili Amine

• Laboratory of Marine Geosciences and Soil Sciences, CNRST Associated Unit (URAC 45), Earth Sciences Department, Chouaib Doukkali University, El Jadida, Morocco

• https://orcid.org/0000-0002-4614-008X

autor

El Khalidi Khalid

• Laboratory of Marine Geosciences and Soil Sciences, CNRST Associated Unit (URAC 45), Earth Sciences Department, Chouaib Doukkali University, El Jadida, Morocco

• https://orcid.org/0000-0003-2889-3210

autor

Minoubi Abdenaim

• Laboratory of Marine Geosciences and Soil Sciences, CNRST Associated Unit (URAC 45), Earth Sciences Department, Chouaib Doukkali University, El Jadida, Morocco

• https://orcid.org/0000-0002-3037-8894

autor

Maanan Mehdi

• Earth Sciences Department, Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Casablanca, Morocco

• https://orcid.org/0000-0003-3019-6860

autor

Zourarah Bendahhou

• Laboratory of Marine Geosciences and Soil Sciences, CNRST Associated Unit (URAC 45), Earth Sciences Department, Chouaib Doukkali University, El Jadida, Morocco

• https://orcid.org/0000-0001-6366-8751

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).