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ORIGINAL RESEARCH article

Front. Mar. Sci.
Sec. Coastal Ocean Processes
Volume 11 - 2024 | doi: 10.3389/fmars.2024.1473237
This article is part of the Research Topic Advances in Coastal Dunes View all 4 articles

Evolution of beach profiles at the German Baltic Sea during and after large-scale beach nourishment: bar formation and sand redistribution

Provisionally accepted
Jan Tiede Jan Tiede 1*Christian Jordan Christian Jordan 1Marcus Siewert Marcus Siewert 2Knut Sommermeier Knut Sommermeier 2Prof. Dr. Torsten Schlurmann Prof. Dr. Torsten Schlurmann 1
  • 1 Leibniz University Hannover, Hanover, Germany
  • 2 Staatliches Landesamt für Landwirtschaft und Umwelt Mittleres Mecklenburg, Rostock, Germany

The final, formatted version of the article will be published soon.

    Coastal zones, critical for their ecological and economic significance, are increasingly vulnerable to storm surges, sea-level rise , and land subsidence. Traditional defense mechanisms, such as dikes and seawalls, are often costly and environmentally taxing. This research highlights how beach and dune systems, key components of coastal protection in the Baltic Sea region, evolve following sand nourishment. Dunes, sustained by periodic sand replenishments, play a critical role in shielding the coast from storm surges, high water levels, and erosion. High-resolution data from Unmanned Aerial Vehicle surveys, alongside terrestrial field observations, provide insights into the morphological changes post-nourishment, including the formation and dynamics of sandbars. Additionally, we demonstrate how UAV photogrammetry can achieve significantly improved change detection through advanced co-alignment techniques, resulting in enhanced precision and reliability of the data. The study underscores the importance of dunes and sandbars in mitigating erosion and advocates for their continued inclusion in coastal protection strategies. The results emphasize the need for long-term monitoring and adaptive management to optimize nourishment effectiveness, supporting sustainable coastal development and resilience against future challenges.

    Keywords: photogrammetry1, RTK UAV2, sand nourishment3, co-alignment4, coastal dynamics5, bathymetry6, bar morphodynamics7

    Received: 30 Jul 2024; Accepted: 18 Nov 2024.

    Copyright: © 2024 Tiede, Jordan, Siewert, Sommermeier and Schlurmann. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Jan Tiede, Leibniz University Hannover, Hanover, Germany

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