Sources of sand material for coastal protection of the Baltic Spit seashore
https://doi.org/10.26897/1997-6011-2024-4-75-82
Abstract
The purpose of the article is to calculate the volume of sand material required for coastal protection of the eroded section of the shore of the Baltic Spit (South-Eastern Baltic, Kaliningrad Oblast), discuss possible sources of sand material and compare the positive and negative aspects of their use. A scheme of the best effective planned protection structure and the current state of the already installed coast protection fragments are presented. The area and volume of alluvium needed to complete the protection were assessed using GIS tools. It was found that the implementation of a comprehensive coastal protection project requires from 100 thousand to 200 thousand m3 of sand material. As sources of material, the along-beach bypassing was considered, as well as the use of extra material – either material from dredging the Kaliningrad Sea Canal, or the sea bottom sediments of the near-inlet surge delta in the Vistula Lagoon. Along-beach bypass and the use of surge delta material are the cheapest and most expensive methods, respectively, and both require a special assessment of the consequences of their use. The use of dredging material (or rather, the changing the area of its discharge) may turn out to be the most optimal, because the entire process for dredging and dumping of the material into the marine environment has already been established technically and legally, but it will require serious investments in organizing a refill station. In principle, any approach with the addition of sandy material from external sources to the alongshore transport system is most attractive due to the sustainability of this coastal protection solution.
Supporting agencies: The work was carried out with the support of the topic no. FM-2024-0025 of the state assignment of the Shirshov Institute of Oceanology, Russian Academy of Sciences. The authors express their gratitude to colleagues from SBO KO “Baltbergozashchita” for the data provided.
About the Authors
R. B. Zakirov
P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation
Russian Federation
Ruslan B. Zakirov, CSc (Geography), PhD in Geography
Researcher; ResearcherID: AFB-2669-2022, Scopus Author ID: 57222497041, AuthorID: 1023893
117997, Moscow, Nakhimovsky Prospekt, 36
B. V. Chubarenko
P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation
Russian Federation
Boris V. Chubarenko, CSs (Phys-Math), PhD in Physics and Mathematics, Leading Researcher, Head of the Laboratory for Coastal Systems Study
ResearcherID: I-6118-2016, Scopus Author ID: 6507102508, AuthorID: 61116
117997, Moscow, Nakhimovsky Prospekt, 36
E. M. Burnashov
State Budgetary Organization of Kaliningrad Oblast “Baltberegozashchita”
Russian Federation
Russian Federation
Evgeniy M. Burnashov, CSc (Geography), deputy director for monitoring and safety
AuthorID: 1182251
238560, Svetlogorsk, Khutorskaya str., 1
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For citations:
Zakirov R.B., Chubarenko B.V., Burnashov E.M. Sources of sand material for coastal protection of the Baltic Spit seashore. Prirodoobustrojstvo. 2024;(4):75-82. (In Russ.) https://doi.org/10.26897/1997-6011-2024-4-75-82
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