摘要
采用有限体积方法的海洋数值模式(FVCOM),对辽河口潮汐及盐度进行数值模拟。结果表明:辽河口盐度锋面位于三道沟上游2km至下游2km范围内,在2009-05径流条件下高潮和低潮时刻盐度值分别为16～26和10～16;高潮期间河口底层盐度值大于表层,低潮期间盐度垂向变化不明显;三道沟附近高潮时刻盐度值在5,7和8月份径流条件下分别为21～22,18～19和15～16。研究结果可为辽河口淡水资源综合利用提供参考依据。
Based on the unstructured-grid and finite-volume coastal ocean model(FVCOM),the tide and salinity distributions in the Liaohe River estuary are simulated.The results show that the salinity front in the Liaohe River estuary lies from 2 km upstream to 2 km downstream of Sandaogou,with its salinity ranging from 16 to 26psu at high tide and 10 to 16psu at low tide under the condition of runoff in May.The salinity at the bottom of the estuary is higher than that at the surface during the high tide,while the vertical change in salinity is not distinct during the low tide.At the high tide the salinity in the area around Sandaogou is,under the condition of runoff,21 to 22psu in May,18 to 19psu in July and 15 to 16psu in August,respectively.These results may provide a reference for the comprehensive utilization of fresh water resource in the Liaohe River estuary.
出处
《海岸工程》
2011年第4期31-36,共6页
Coastal Engineering
基金
国家水专项--辽河流域水环境风险评估与预警监控平台构建技术示范课题(2008ZX07528-006)
关键词
辽河口
盐度
数值模拟
FVCOM
Liaohe River estuary
salinity
numerical simulation
FVCOM
