Issue |
E3S Web Conf.
Volume 630, 2025
2025 International Conference on Eco-environmental Protection, Environmental Monitoring and Remediation (EPEMR 2025)
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Article Number | 02008 | |
Number of page(s) | 6 | |
Section | Ecosystem Resilience and Sustainable Futures under Climate Change | |
DOI | https://doi.org/10.1051/e3sconf/202563002008 | |
Published online | 22 May 2025 |
Study on material transport in Dingzi Bay based on the lagrangian method
1 College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, Shandong, China;
2 Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, Shandong, China
Dingzi Bay is located in the eastern part of the Shandong Peninsula and is a typical semi-enclosed narrow bay. Affected by human activities such as land reclamation and pollutant discharge, the ecological environment quality has seriously deteriorated. To reveal the transport of pollutants in Dingzi Bay, this paper utilizes the unstructured Finite Volume Coastal Ocean Model (FVCOM) and a Lagrangian particle tracking model, combined with the Lagrangian Flow Networks (LFN) theory. By employing indicators such as indegree and betweenness from flud networks, the material aggregation areas, and key nodes of the Dingzi Bay were revealed. The results show that the main areas for material accumulation are the bay head, the northerncentral nearshore region, the cap areas, and the deep-water regions. Among these, the material retention rate in the sea area at the head of the bay reaches 95% within 25 hours. The betweenness centrality in the central deep-water area of the bay is relatively high, making it the primary channel for material diffusion.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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