본문 바로가기
  • Home

Assessing Mechanisms of Reduced Dispersion in Response to Coastal Development: Comparison of Concentration- and Particle-Derived Diffusion Indices

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2025, 34(5), pp.314~328
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering
  • Received : October 1, 2025
  • Accepted : October 27, 2025
  • Published : October 31, 2025

HyeRyeon Gwon 1 MinSun Kwon 2 JongGu Kim 3 Hoon Kang 4

1군산대학교 토목환경공학부
2(주)국토해양환경기술단
3군산대학교 환경공학과
4(주)해양정보기술

Accredited

ABSTRACT

This study quantitatively investigated the effects of flow reorganization and structural installations associated with the Saemangeum New Port construction on seawater inflow and material transport characteristics. The EFDC model simulated three-dimensional hydrodynamics under pre-development (2013), partial development (2023), and post-completion (2030) scenarios. Comprehensive analyses of salinity distribution, vertical salinity gradient, effective diffusion coefficient (Deff), and particle transport were conducted. Contrasting trends emerged: enhanced mixing in the Dongjin area due to road construction and channel realignment, and increased residence time in the Mangyeong area due to restricted inflow pathways. Concentration-based diffusion coefficients reflect average mixing, whereas particle-based coefficients capture residual-flow-driven transport and local recirculation, demonstrating their complementarity for diagnosing structure-induced exchange changes.

Citation status

* References for papers published after 2024 are currently being built.