海洋工程影响下莱州湾海域水动力环境变化特征  

The hydrodynamic environment variability of Laizhou bay response to the marine engineering

作　　者：吕婷[1] 苏博 王佳莹 靳洋 何鑫 于华明[1] 马元庆 

机构地区：[1]中国海洋大学,山东青岛266100 [2]山东省海洋资源与环境研究院山东省海洋生态修复重点实验室,山东烟台264006

出　　处：《海洋环境科学》2017年第4期571-577,共7页Marine Environmental Science

基　　金：基金项目 山东近岸热点开发海域主要污染物环境容量及总量控制技术研究(2014GSF117030);全球高分辨率海洋再分析系统研制与产品研发(2016YFC1401800);全球海洋潮能通量与耗散(41406011);重大海洋动力灾害致灾机理;风险评估;应对技术研究及示范应用(2016YFC1402000)

摘　　要：本文利用MIKE21FM数值模拟软件模拟了2000年和2014年莱州湾海域的水动力变化。结果表明由于海洋工程的建设,莱州湾内地形和浅滩发生变化,导致2014年湾内整体潮流流速较2000年减小,流向发生一定偏转;在NE向定常风驱动下对比2000年和2014年模拟海流结果可知变化幅度在1~3cm/s内,莱州湾整体表层海水运动受岸线变化影响较小;纳潮量减少0.1788 km^3,为2000年的3.2%;半水交换时间由27.5 d增加到29 d,工程建设对莱州湾水交换影响相对较小。This article simulates the hydrodynamic environment of the Laizhou bay during 2000 and 2014 by MIKE21FM numerical simulation method. Compared with 2000, the results show that the marine engineering cause the change of topography and shallows of the Laizhou bay,which leads to the tidal current slowing down and the direction turning in 2014;the ocean current changed in the range of 1 cm/s to 3 cm/s with the constant northeast wind, the variation of coastline had little impact on the flow of the surface sea water;the storage capacity of tidal was 0. 1788 km^3 , 3.2% decrease in 2000;the half water exchange time increased from 27.5 days to 29 days, which indicates the construction had little influence on the water exchange.

关 键 词：水动力 莱州湾 半水交换时间 纳潮量 

分 类 号：P731.2[天文地球—海洋科学]