| 温州海域示踪物扩散空间差异性研究 |
| Study on the Spatial Heterogeneity of Tracer Dispersion along Coastal Segments in Wenzhou Sea Area |
| 投稿时间：2025-06-27 修订日期：2025-12-26 |
| DOI： |
| 中文关键词: 温州海域 MIKE 21 数值模拟 示踪物 |
| 英文关键词:Wenzhou sea area MIKE 21 Numerical Simulation Marine Environment |
| 基金项目:国家重点研发计划(2021YFC3101702)；中央院所基金项目近海生态系统演变对碳氮磷输入响应机制研究(2024YSKY-04) |
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| 中文摘要: |
| 基于MIKE 21构建了高精度二维水动力数值模型，对温州海域各岸段示踪物扩散输移规律进行了讨论。在综合考虑温州海域复杂海底地形、潮汐特征和多条河流入海等多重因素作用下，重点分析了温州海域不同岸段示踪物扩散的空间差异性。结果表明，温州海域不同岸段的示踪物输移扩散能力存在显著差异。总体上，示踪物在三个河口区域的扩散能力最强，在乐清湾内最弱。在扩散达到稳定后，示踪物在瓯江口北侧影响范围最大，在鳌江口南侧岸段次之。而瓯江口南侧岸段由于水深较浅和流量偏弱，其扩散输移能力相对较弱。 |
| 英文摘要: |
| In this study, a high-resolution 2D hydrodynamic numerical model was established based on MIKE 21 to conduct detailed simulations of tracer dispersion and transport patterns in the Wenzhou sea area and along its various coastal segments. By comprehensively considering multiple factors including the complex seabed topography of Wenzhou sea area, tidal characteristics, and inflows from multiple rivers, special focus was placed on analyzing the spatial heterogeneity in tracer dispersion along different coastal segments of the bay. The results indicate there is a significant spatial heterogeneity in the tracer transport and dispersion capacity along the coastal segments of Wenzhou sea area. Overall, the dispersion capacity was strongest in the three estuarine areas and weakest within the Yueqing Bay. After reaching a steady state, the tracers exhibited the largest affected area north of the Oujiang River Estuary, followed by the southern segment of the Aojiang River Estuary. In contrast, the southern segment of the Oujiang River Estuary showed relatively weaker dispersion and transport capacity due to its shallower water depth and weaker flow. |
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