渤海沿岸4个验潮站潮汐特征分析  

An analysis of tidal spatio-temporal characteristics at four stations along Bohai coast

作　　者：王立杨 桑金 乔守文 隋意 尤再进[1] 石洪源[1] WANG Liyang;SANG Jin;QIAO Shouwen;SUI Yi;YOU Zaijin;SHI Hongyuan(School of Civil Engineering,Ludong University,Yantai,Shandong 264025,China;Tianjin Maritime Surveying and Charting Center of NGCN,Tianjin 300222,China)

机构地区：[1]鲁东大学土木工程学院,山东烟台264025 [2]交通运输部北海航海保障中心,天津海事测绘中心,天津300222

出　　处：《海洋湖沼通报》2020年第4期23-29,共7页Transactions of Oceanology and Limnology

基　　金：国家重点研发计划(2018YFB1501901);国家自然科学基金(U1806227,U1706220,51909114)资助。

摘　　要：综合利用4个验潮站的逐时观测潮位资料,采用最小二乘原理的调和分析方法得到验潮站的潮汐调和常数。根据调和常数计算沿岸海域潮汐特征值,分析4个站位海域潮汐的时空特征。结果表明:秦皇岛附近受半日潮无潮点的影响为正规全日潮,其余3站位均为不规则半日潮性质;4个验潮站中龙口站和秦皇岛站属于弱潮海区,葫芦岛站和塘沽站属于中潮区。4个站位平均大潮差、平均小潮差、最大可能潮差与平均潮差的变化趋势基本一致,月平均潮差存在"双峰型"和"多峰型";葫芦岛验潮站、塘沽验潮站以及龙口验潮站均呈现出较不明显的潮高日不等现象;涨、落潮历时日不等,存在区域性分布。The hourly tidal level data obtained from four tidal gauge stations in Bohai coastal areas were used to derive the tidal harmonic constants with the use of the harmonic analysis method of the least square principle.Then the tidal characteristic values were computed according to the tidal harmonic constants,with the spatiotemporal characteristics analyzed.The results showed that the tidal type in Qinghuangdao coastal areas is regular diurnal tides and the others are irregular semidiurnal tides.Among the four tidal stations,Longkou station and Qinhuangdao station belong to the weak tidal area,Huludao station and Tanggu station belong to the middle tidal area.The mean spring tidal range,mean neap tidal range and maximum possible tidal range are basically the same as the mean tidal range.The monthly mean tidal height exists double peaks and multi-peak.The tidal height diurnal inequality is evident in Huludao,Tanggu and Longkou tidal gauge stations.There is regional distribution of diurnal inequality of the rising tide time and the ebb tide time.

关 键 词：渤海沿海 潮汐类型 潮差 潮汐不等 

分 类 号：P731.22[天文地球—海洋科学]