摘要
通过分析历史调查监测资料和用数值模拟的方法,研究了大鹏湾海域的水动力特征及其生态环境效应。研究结果表明,大鹏湾海域的流速较小,一般为0.10m·s-1左右,湾顶和近岸海域为0.05m·s-1左右;大鹏湾余流,夏季为一逆时针环流,春、秋、冬季则为一顺时针环流。大鹏湾海域水动力条件所产生的生态环境效应为,污染物表现为湾内向湾外递减,近岸向远岸递减的趋势,大鹏湾北部的沙头角和盐田一带及香港吐露港沿岸等海域环境质量最差;吐露港很可能是大鹏湾的赤潮生物源,并于春季时,在顺时针余环流的带动下,波及到大鹏湾的中部和北部海域。
The hydrodynamic characteristics of Dapeng Bay and its ecological and environmental effects are studied by analyzing the historical investigation data and using the method of numerical simulation. The results show that the current velocity in Dapeng Bay is small, generally 0.10m·s-1; and the nearshore velocity is 0.05 m·s-1. The residual current is a cyclonic circulation in summer, and an anticyclonic circulation in other seasons. Under such hydrodynamic conditions, the pollutant concentration exhibits a decreasing trend from inbay to outbay and from alongshore to farshore. The water quality in the north part of Shatoujiao and Yantian and near Tolo Harbor is the worst. The Tolo Harbor is possibly the source of red tidal organisms of Dapeng Bay, which spread to the middle and north part of Dapeng Bay driven by the clockwise residual current in spring.
出处
《热带海洋学报》
CAS
CSCD
北大核心
2003年第5期47-54,共8页
Journal of Tropical Oceanography
基金
广东省科技计划项目(2KB06701S
A3050301)
广东省重大科技兴海项目(A200099F01)
中国科学院知识创新工程资助项目(KSCZ2 SW 102
KZCX2 206)
国家自然科学基金项目(40176034)
中国科学院大亚湾海洋生物综合实验站基金项目(P9906)
关键词
水动力
水质
赤潮
大鹏湾
hydrodynamics
water quality
red tide
Dapeng Bay
