论文部分内容阅读
利用南海北部流花海域一套潜标系统2011年4月份的观测数据,通过分析温跃层附近等温线和流场,研究了该区域的内孤立波特征。发现该区域内孤立波主要来源于吕宋岛和富加岛之间的海峡,且产生于当地大潮期,传播方向集中于292°。这些内孤立波主要为a型波,几乎固定出现在每日0时,平均出现时间间隔24h。分析观测期间的最大振幅内孤立波,发现该内孤立波振幅80.9m,传播周期24min,传播速度1.29m·s 1传播方向298°,半波宽度129.4m,出现在21日1时左右,为典型的第一模态下凹型内孤立波。
Based on the observation data of a submarine system in Liuhua sea area in the northern part of the South China Sea in April 2011, the internal solitary wave characteristics in this area were studied by analyzing the isothermal lines and flow fields in the vicinity of the thermocline. It is found that the solitary waves in this area mainly originated from the strait between Luzon and Fujia, and originated in the local tidal period with the direction of propagation concentrated at 292 °. These internal solitary waves are mainly a-wave, almost fixed in the daily 0:00, the average time interval 24h. Analysis of the maximum amplitude of solitary wave during the observation period found that the internal solitary wave amplitude of 80.9m, propagation cycle of 24min, propagation velocity of 1.29m · s 1 propagation direction of 298 °, half-wave width of 129.4m, appeared at 21:00 on the 1st, or In the first typical concave concave solitary wave.