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2019年冬季连云港近海海域潮汐潮流特征分析 被引量:2

Analysis of tidal and current characteristics in the coastal area of Lianyungang in the winter of 2019
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摘要 本文基于2019年冬季连云港近海海域1个站位的潮位资料和6个站位的海流资料进行了数据分析工作。结果表明:连云港近海海域的潮汐类型属于正规半日潮,涨潮历时大于落潮历时约1小时24分。大潮期涨落潮流流速最大,中潮次之,小潮最小。外海区域的潮流动力强于近岸。流速垂向随深度减小。平均涨潮流历时长于落潮流历时,且随着大、中、小潮的变化,涨潮流历时增加,落潮流历时减少。连云港近海海域的潮流类型属于规则浅海半日潮流。近岸海域以往复流为主,外海以逆时针旋转流为主。余流在大潮期最大,中潮期次之,小潮期最小,外海区域的余流大于近岸,冬季东北季风的影响,方向以偏南向为主。 Using tidal level data of one station and current data of six stations in the coastal area of Lianyungang in the winter of 2019, this study conducted data analysis. The results show that the tidal type of Lianyungang is regular semi-diurnal tide. The flood tide is longer than the ebb tide about 1 hour 24 minutes. The current speed is the largest during the spring tide period, followed by medium tide, and then neap tide. The tidal force in offshore is stronger than that in nearshore. The current velocity decreases vertically as depth increase. The average rising tide current duration is longer than the decreasing tide current duration. The rising tide current duration is the largest in spring tide, followed by medium tide, and then neap tide. The type of tidal current in the coastal area is regular shallow semi-diurnal tidal current. The current in nearshore is dominated by reciprocating current, and the current in offshore is dominated by counterclockwise rotating current. The residual current is the largest during the spring tide period, followed by the medium tide period, and then the neap tide period. The residual current in offshore is larger than that in nearshore. The current direction is mainly southward in the influence of the northeast monsoon.
作者 于洁雯 曹雪峰 陈兆林 文武 张冲 刘永青 YU Jiewen;CAO Xuefeng;CHEN Zhaolin;WEN Wu;ZHANG Chong;LIU Yongqing(Dalian Compass Ocean Engineering Cosultancy,Dalian 116023,China;National Marine Environmental Monitoring Center,Dalian 116023,China)
出处 《海洋湖沼通报》 CSCD 北大核心 2020年第6期53-60,共8页 Transactions of Oceanology and Limnology
基金 辽宁省博士科研启动基金计划项目(2019-BS-092)。
关键词 连云港 冬季 潮汐 潮流 余流 Lianyungang Winter Tide Current Residual current
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