台湾海峡夏季走航ADCP资料的滤潮处理

Tidal Current Separation from Ship-mounted ADCP Measurements in Summer in Taiwan Strait

运用Candela等1992年提出的潮流分离方法,采用台湾海峡2006年夏季走航ADCP和潜标资料,对台湾海峡15个断面走航资料进行潮流分离计算。通过对15个断面的无加入潜标资料计算的方法和加入潜标资料计算的方法的结果分析比较发现,后者比前者的效果要好,通过与潜标1个月的潮流资料相比较发现,后者潮流流速、流向的相对误差小于0.2的占1个月资料的57%和52%,前者潮流流速流向的相对误差小于0.2的均占11个月资料的30%。

Based on tidal current separation method developed by Candela et al in 1992, current measurements obtained from ship-mounted Acoustic Doppler Current Profiler （ADCP） and submerged buoy in summer 2006 are used to conduct the tidal current separation for the fifteen dections in Taiwan Strait. It is learnt from the comparison between the results respectively from the ADCP data only and from the ADCP data mergen with the submerged buoy data that latter result is better. The tidal current velocity errors less than 0.2,relative to the submerged buoy data（measured for month）, account for 57%, and the tidal current direction errors less than 0.2 account for 52 % in the latter result. Either the current velocity or current direction relative errors is less than 0.2 account for 30% in the former result.