摘要
本文对渤海中部一点一年的实测海流资料通过低通滤波方法,计算逐时的余流;通过准调和分析方法,计算逐日的余流。对辽东湾北部一点和渤海湾西南部一点数月实测海流资料也进行了低通滤波和准调和分析。计算结果表明,在渤海全年绝大部分的日子里,表层余流小于10cm/s,比潮流量值小的多,在近岸浅水区,海流主要为潮流。
In this paper ,based on the measured ocean currents in one year of the station in the middle of the Bohai Sea, hourly residual currents are computed using the method of low - pass filter, and daily residual currents are computed using the method of harmonic analyses. Based on the measured ocean currents in several months of two stations,one is in the middle of Liaodong Bay and the other is in the southwestern part of Bohai Bay, residual currents are also computed using the methods of low - pass filter and harmonic analyses. The computation indicates that the values of residual current are less than 10cm/s, during the most time of a year,the values are also less than the values of tidal current in the shallow waters along coast.
出处
《青岛远洋船员学院学报》
2008年第2期41-43,共3页
Journal of Qingdao Ocean Shipping Mariners College
关键词
余流
海流
潮流
低通滤波
准调和分析
residual current, ocean current, tidal current, low - pass filter, harmonic analysis
