基于潜标观测的吕宋海峡以东深海潮流特征研究

本文使用吕宋海峡以东的潜标观测的长达1年的海流数据，重点对该海域海流的高频波动(潮流)的垂向分布及其时间变化特征进行了分析，结果表明:该海域次表层(100～160 m)的潮动能比中层(1 550 m)和深层(2 560 m)大1～2个数量级，近底层(4 040 m)的潮动能略大于中、深层；次表层为不正规半日潮流，中、深层为不正规全日潮流；各层次潮动能均在夏季(6?9月)和冬季(2?3月)增强，与M₂分潮和K₁分潮在夏季和冬季的增强相对应；各层次海流的高频波动以顺时针旋转为主，次表层海流近惯性周期接近当地理论惯性周期，中、深层略小于当地理论惯性周期。

Characteristics of abyssal tidal currents east of the Luzon Strait:Cast study from in situ observation

A submarine mooring system was deployed in the east of the Luzon Strait and the vertical distribution of high frequency (mostly tidal) variations of ocean currents were analyzed in the paper. Several features were revealed that the tidal kinetic energy of the middle (1 550 m) and the deep layers（2 560 m） was one to two orders smaller than that of the subsurface layers (100?160 m) , and slightly smaller than that of the near-bottom layers (4 040 m); the tidal currents were irregular semi-diurnal in the subsurface layers and were irregular diurnal in the middle and deep layers; the tidal kinetic energy was larger in summer (June to September) and winter (February to March) , which mainly caused by enhancement of M₂ and K₁ tidal components in corresponding periods; the high frequency fluctuations in all layers were mainly in clockwise rotation; the near-inertial frequency in the upper layers (middle and deep layers) were close to (slightly smaller than) the local inertial frequency.