Long-term shoreline changes at large spatial scales at the Baltic Sea: remote-sensing based assessment and potential drivers

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OriginalspracheEnglisch
Aufsatznummer1207524
FachzeitschriftFrontiers in Marine Science
Jahrgang10
PublikationsstatusVeröffentlicht - 27 Juni 2023

Abstract

In this study, we demonstrate how freely available satellite images can be used to understand large-scale coastline developments along the coast of Mecklenburg-Western Pomerania (MWP). By validating the resulting dataset with an independent Light Detection and Ranging (LIDAR) dataset, we achieved a high level of accuracy for the calculation of rates of change (ROC) with a root mean square error (RMSE) of up to 0.91 m, highlighting the reliability of Earth observation data for this purpose. The study assessed the coastal system’s natural evolution from 1984 to 1990, prior to significant human interventions, and examined the period from 1996 to 2022, which was characterized by regular sand nourishments amounting to approximately 16 million m³. The results reveal notable changes in the study area, with a significant decline in erosive trends and an increase in the number of stable and accreting transects. However, it is important to note that the regular sand nourishments may be masking the true ROC along the coastline. Furthermore, the future supply of sand raises concerns about the sustainability of coastal developments, particularly in the context of future sea level rise (SLR). The study provides valuable insights for coastal authorities and policymakers, informing decisions on sand resource allocation and highlighting the need for appropriate adaptation strategies to address future SLR and ensure long-term coastal resilience.

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Long-term shoreline changes at large spatial scales at the Baltic Sea: remote-sensing based assessment and potential drivers. / Tiede, Jan; Jordan, Christian; Moghimi, Armin et al.
in: Frontiers in Marine Science, Jahrgang 10, 1207524, 27.06.2023.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Tiede J, Jordan C, Moghimi A, Schlurmann T. Long-term shoreline changes at large spatial scales at the Baltic Sea: remote-sensing based assessment and potential drivers. Frontiers in Marine Science. 2023 Jun 27;10:1207524. doi: 10.3389/fmars.2023.1207524
Tiede, Jan ; Jordan, Christian ; Moghimi, Armin et al. / Long-term shoreline changes at large spatial scales at the Baltic Sea: remote-sensing based assessment and potential drivers. in: Frontiers in Marine Science. 2023 ; Jahrgang 10.
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AU - Jordan, Christian

AU - Moghimi, Armin

AU - Schlurmann, Torsten

N1 - Funding Information: We thank the StALU for answering detailed questions about the coastal protection strategy of MWP and supplying the LIDAR dataset. The publication of this article was in part funded by the Open Access Fund of Leibniz Universität Hannover. This research was conducted as part of the joint research project ECAS-Baltic which was funded by the German Federal Ministry of Education and Research under the funding code 03F0860E. Acknowledgments

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KW - Baltic Sea

KW - coastal management

KW - remote sensing

KW - sand nourishments

KW - satellite-derived shorelines

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