秦皇岛市饮马河口近岸海域潮流及污染物扩散数值模拟探讨

Numerical simulation of tidal current and pollutant diffusion in Yinma estuary,Qinhuangdao City

近岸海域是海洋环境受人类活动最敏感区域,其生态环境保护尤为重要。监测数据显示:秦皇岛市近岸海域水质主要受入海河流饮马河的影响。在秦皇岛市饮马河口及近岸海域监测断面水质监测数据及水文环境现场调查的基础上,模拟近岸海域的自然和动力演变过程,建立潮流动力数值模型;对饮马河口近岸海域污染物CODMn扩散输移特征进行研究,建立污染物扩散数值模型并通过实际监测数据验证其模型的准确性。

The ecological environmental protection of coastal sea area is a critical issue as it is the most sensitive marine environment to human activities.As show in monitoring data,the water quality of Qinhuangdao coastal area is mainly affected by the Yinma river.In this paper,a numerical model of tidal current dynamics is established by simulating the natural and dynamic evolution of coastal sea area,which is based on the monitoring data of water quality in the monitoring sections of Yinma estuary and coastal area in Qinhuangdao and the field investigation of hydrological environment.A numerical model of pollutant diffusion was also established by studying the characteristics of pollutant CODMn diffusion in the coastal area of Yinma estuary,and its accuracy was verified by the actual monitoring data.