近海开发影响下水环境多场耦合的演变规律研究

In view of the resources exploitation and water pollution in offshore zone, the exploitation influence on water body and water environmental evolution under multi-field coupling in offshore zone will be studied, in which the the water waves, near-shore currents and tides etc. are crucial hydrodynamics for pollutant movement in the zone. The movement process of hydrodynamics in different temporal and spatial scales, such as water waves, tides and near-shore currents etc. influenced by the variation of topography, landform and boundary conditions, as well as engineering structures etc. due to coastal and offshore exploitation will be synthetically analyzed, and the water environment influenced by a variety of crucial water quality parameters and oil spill movement ect. under the action of these hydrodynamics will also be analyzed. The water environmental prediction models based with multi-field coupling in offshore zone will be developped based on these. The influence of offshore exploitation on water environment evolution process will be predicted based on the developped models, and the hydrodynamics and evolution tendency and rules of water environmental evolution under multi-field coupling in the zone will be discovered. It is believed that the above studies can provide academic and technical supports for analyzing and evaluating the environmental health, and realizing the harmonious development between the exploitation and water environment in offshore zone.

针对我国近海资源开发和区域水环境恶化的现状，以波浪、近岸流、潮流等为近海水域多场耦合作用下污染物运动的关键水动力要素，模拟分析近海开发对区域水体及水环境多场耦合演变的影响过程。将综合考虑近海开发引起的地形、地貌、边界、工程构筑物等变化对区域不同时空尺度的波浪、近岸流、潮流等关键水动力要素运动的影响过程，分析近海开发生产中各水动力要素作用下多种水质参数、事故溢油等对区域水环境的耦合影响规律，建立考虑多场耦合效应的近海水环境灾害预警模型，预报近海开发对水环境的影响过程，揭示近海开发活动对区域水动力和水环境多场耦合演变过程的影响规律。为分析评价近海环境健康、实现近海资源开发利用和水环境协调发展提供关键科学依据和有效技术支持。

本项目针对我国近海资源开发和区域水环境恶化的现状，以波浪、近岸流、潮流等为近海水域多场耦合作用下污染物运动的关键水动力要素，模拟分析了近海开发对区域水体及水环境多场耦合演变的影响过程。综合考虑了近海开发引起的地形、地貌、边界、工程构筑物等变化对区域不同时空尺度的波浪、近岸流、潮流等关键水动力要素运动的影响过程，分析了近海开发生产中各水动力要素作用下多种水质参数对区域水环境的耦合影响规律，建立了考虑多场耦合效应的近海水环境灾害预警模型，研究了近海开发对水环境的影响过程。系统地分析了莱州湾集约用海对周边水环境的影响、长江口横沙东滩圈围工程对周边水环境的影响、长江口北支中束窄工程对周边水动力和水质影响、钱塘江河口围涂工程对杭州湾水动力和水环境的影响、瓯江口温州浅滩围涂开发对周边海域泥沙输运和水环境的影响等。揭示了近海开发活动对区域水动力和水环境多场耦合演变过程的影响规律。为分析评价近海环境健康、实现近海资源开发利用和水环境协调发展提供关键科学依据和有效技术支持。研究成果在《Coastal Engineering》、《Mathematical Problems in Engineering》、《Ocean Dynamics》、《Ocean Engineering》、《海洋工程》等学术期刊上发表了标注国家自然科学基金项目（51579030）资助的期刊论文22篇，论文被SCI收录9篇、EI收录1篇、北大中文核心期刊收录13篇。培养毕业了硕士研究生5名，开展了国际合作和学术交流。