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November 1, 2025Earth Surface Processes and LandformsOpen Access

Exploring the role of coastal structures in shaping cold‐temperate river–estuarine marsh environments

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Authors

SVSamuel VaillancourtJBJean-François BernierSMSydney W. Meury

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Overview

Analysis shows sediment transport affected by coastal structures in river estuaries, indicating implications for ecosystem services.

Key Points

  • The study evaluates how coastal structures influence sediment dynamics and coastline evolution in cold-temperate river-estuarine marshes.
  • Utilized high-resolution digital surface models generated from UAS photogrammetric surveys over 4 years.
  • Compared two contrasting coastal sectors with mixed marsh and beach systems.
  • Analyzed alongside historical coastline positions, wave data, atmospheric temperatures, and human intervention records.
  • Shorter perpendicular structures promote fine sediment deposition and marsh vegetation colonization.
  • Longer structures can decrease marsh surface elevation due to positive feedback loops.
  • Geomorphic changes in the SLFE are linked to seasonal fluvial and ice processes rather than storm events.

Cite This Study

Vaillancourt et al. (2025) studied this question.

synapsesocial.com/papers/69254366c0ce034ddc358422https://doi.org/10.1002/esp.70193
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